small checkin :-)

- remove any ptl dependancy from mpi/pml interface
- beginings of a new pml
- new Bit Mover Interface (BMI) framework

This commit was SVN r5834.

config/ompi_mca.m4

@@ -157,7 +157,7 @@ unset msg
 # The list of MCA types (it's fixed)
 
 AC_MSG_CHECKING([for MCA types])
-found_types="common allocator coll errmgr gpr io iof mpool ns oob pls pml ptl ras rds rmaps rmgr rml schema soh topo"
+found_types="common allocator bmi coll errmgr gpr io iof mpool ns oob pls pml ptl ras rds rmaps rmgr rml schema soh topo"
 AC_MSG_RESULT([$found_types])
 
 # Get the list of all the non-configure MCA components that were found by
@@ -572,6 +572,11 @@ AC_SUBST(MCA_mpool_STATIC_SUBDIRS)
 AC_SUBST(MCA_mpool_DSO_SUBDIRS)
 AC_SUBST(MCA_mpool_STATIC_LTLIBS)
 
+AC_SUBST(MCA_bmi_ALL_SUBDIRS)
+AC_SUBST(MCA_bmi_STATIC_SUBDIRS)
+AC_SUBST(MCA_bmi_DSO_SUBDIRS)
+AC_SUBST(MCA_bmi_STATIC_LTLIBS)
+
 AC_SUBST(MCA_pml_ALL_SUBDIRS)
 AC_SUBST(MCA_pml_STATIC_SUBDIRS)
 AC_SUBST(MCA_pml_DSO_SUBDIRS)

configure.ac

@@ -1513,6 +1513,8 @@ AC_CONFIG_FILES([
 
     src/mca/allocator/Makefile
     src/mca/allocator/base/Makefile
+    src/mca/bmi/Makefile
+    src/mca/bmi/base/Makefile
     src/mca/coll/Makefile
     src/mca/coll/base/Makefile
     src/mca/io/Makefile

src/Makefile.am

@@ -142,6 +142,7 @@ libmpi_la_LIBADD = \
         info/libinfo.la \
         mca/base/libmca_base.la \
         mca/allocator/base/libmca_allocator_base.la $(MCA_allocator_STATIC_LTLIBS) \
+        mca/bmi/base/libmca_bmi_base.la $(MCA_bmi_STATIC_LTLIBS) \
         mca/coll/base/libmca_coll_base.la $(MCA_coll_STATIC_LTLIBS) \
         $(MCA_common_STATIC_LTLIBS) \
         mca/errmgr/base/libmca_errmgr_base.la \

src/class/ompi_free_list.c

@@ -17,6 +17,7 @@
 #include "ompi_config.h"
 
 #include "class/ompi_free_list.h"
+#include "include/sys/cache.h"
 
 
 static void ompi_free_list_construct(ompi_free_list_t* fl);
@@ -73,16 +74,23 @@ int ompi_free_list_grow(ompi_free_list_t* flist, size_t num_elements)
 {
     unsigned char* ptr;
     size_t i;
+    size_t mod;
+
     if (flist->fl_max_to_alloc > 0 && flist->fl_num_allocated + num_elements > flist->fl_max_to_alloc)
         return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
 
     if (NULL != flist->fl_mpool)
-        ptr = (unsigned char*)flist->fl_mpool->mpool_alloc(num_elements * flist->fl_elem_size, 0);
+        ptr = (unsigned char*)flist->fl_mpool->mpool_alloc((num_elements * flist->fl_elem_size) + CACHE_LINE_SIZE, 0);
     else
-        ptr = (unsigned char *)malloc(num_elements * flist->fl_elem_size);
+        ptr = (unsigned char *)malloc((num_elements * flist->fl_elem_size) + CACHE_LINE_SIZE);
     if(NULL == ptr)
         return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
 
+    mod = (unsigned long)ptr % CACHE_LINE_SIZE;
+    if(mod != 0) {
+        ptr += (CACHE_LINE_SIZE - mod);
+    }
+
     for(i=0; i<num_elements; i++) {
         ompi_list_item_t* item = (ompi_list_item_t*)ptr;
         if (NULL != flist->fl_elem_class) {

src/class/ompi_object.h

@@ -446,7 +446,11 @@ static inline ompi_object_t *ompi_obj_new(size_t size, ompi_class_t * cls)
  */
 static inline int ompi_obj_update(ompi_object_t *object, int inc)
 {
+#if OMPI_HAVE_THREAD_SUPPORT
     ompi_atomic_add(&(object->obj_reference_count), inc );
+#else
+    object->obj_reference_count += inc;
+#endif
     return object->obj_reference_count;
 }
 

src/communicator/comm_init.c

@@ -84,7 +84,6 @@ int ompi_comm_init(void)
     ompi_mpi_comm_world.c_cube_dim     = ompi_cube_dim(size);
     ompi_mpi_comm_world.error_handler  = &ompi_mpi_errors_are_fatal;
     OBJ_RETAIN( &ompi_mpi_errors_are_fatal );
-    MCA_PML_CALL(add_comm(&ompi_mpi_comm_world));
     OMPI_COMM_SET_PML_ADDED(&ompi_mpi_comm_world);
     ompi_pointer_array_set_item (&ompi_mpi_communicators, 0, &ompi_mpi_comm_world);
 
@@ -114,7 +113,6 @@ int ompi_comm_init(void)
     ompi_mpi_comm_self.c_remote_group = group;
     ompi_mpi_comm_self.error_handler  = &ompi_mpi_errors_are_fatal;
     OBJ_RETAIN( &ompi_mpi_errors_are_fatal );
-    MCA_PML_CALL(add_comm(&ompi_mpi_comm_self));
     OMPI_COMM_SET_PML_ADDED(&ompi_mpi_comm_self);
     ompi_pointer_array_set_item (&ompi_mpi_communicators, 1, &ompi_mpi_comm_self);
 

src/mca/Makefile.am

@@ -29,6 +29,7 @@ SUBDIRS = \
 	gpr \
 	mpool \
 	ns \
+	bmi \
 	oob \
 	pls \
 	pml \

src/mca/bmi/Makefile.am

@@ -1,4 +1,3 @@
-# -*- makefile -*-
 #
 # Copyright (c) 2004-2005 The Trustees of Indiana University.
 #                         All rights reserved.
@@ -15,18 +14,20 @@
 # $HEADER$
 #
 
-sources += \
-	src/ptl_tcp.c \
-	src/ptl_tcp.h \
-    src/ptl_tcp_addr.h \
-	src/ptl_tcp_component.c \
-	src/ptl_tcp_peer.c \
-	src/ptl_tcp_peer.h \
-	src/ptl_tcp_proc.c \
-	src/ptl_tcp_proc.h \
-	src/ptl_tcp_recvfrag.c \
-	src/ptl_tcp_recvfrag.h \
-	src/ptl_tcp_sendfrag.c \
-	src/ptl_tcp_sendfrag.h \
-	src/ptl_tcp_sendreq.c \
-	src/ptl_tcp_sendreq.h
+include $(top_srcdir)/config/Makefile.options
+
+SUBDIRS = base $(MCA_bmi_STATIC_SUBDIRS)
+DIST_SUBDIRS = base $(MCA_bmi_ALL_SUBDIRS)
+
+# Source code files
+
+headers = bmi.h
+
+# Conditionally install the header files
+
+if WANT_INSTALL_HEADERS
+ompidir = $(includedir)/openmpi/mca/bmi
+ompi_HEADERS = $(headers)
+else
+ompidir = $(includedir)
+endif

src/mca/bmi/base/Makefile.am

@@ -0,0 +1,44 @@
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+include $(top_srcdir)/config/Makefile.options
+
+noinst_LTLIBRARIES = libmca_bmi_base.la
+
+# For VPATH builds, have to specify where static-modules.h will be found
+
+AM_CPPFLAGS = -I$(top_builddir)/src
+
+# Source code files
+
+headers = \
+    base.h
+
+libmca_bmi_base_la_SOURCES = \
+    $(headers) \
+    bmi_base_close.c \
+    bmi_base_open.c \
+    bmi_base_select.c
+
+# Conditionally install the header files
+
+if WANT_INSTALL_HEADERS
+ompidir = $(includedir)/openmpi/mca/bmi/base
+ompi_HEADERS = $(headers)
+else
+ompidir = $(includedir)
+endif
+

src/mca/bmi/base/base.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_BMI_BASE_H
+#define MCA_BMI_BASE_H
+
+#include "ompi_config.h"
+#include "class/ompi_list.h"
+#include "mca/mca.h"
+#include "mca/bmi/bmi.h"
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+struct mca_bmi_base_selected_module_t {
+  ompi_list_item_t super;
+  mca_bmi_base_component_t *bmi_component;
+  mca_bmi_base_module_t *bmi_module;
+};
+typedef struct mca_bmi_base_selected_module_t mca_bmi_base_selected_module_t;
+
+
+/*
+ * Global functions for MCA: overall BMI open and close
+ */
+
+OMPI_DECLSPEC  int mca_bmi_base_open(void);
+OMPI_DECLSPEC  int mca_bmi_base_select(bool enable_progress_threads, bool enable_mpi_threads);
+OMPI_DECLSPEC  int mca_bmi_base_close(void);
+
+
+/*
+ * Globals
+ */
+OMPI_DECLSPEC extern int mca_bmi_base_output;
+OMPI_DECLSPEC extern char* mca_bmi_base_include;
+OMPI_DECLSPEC extern char* mca_bmi_base_exclude;
+OMPI_DECLSPEC extern ompi_list_t mca_bmi_base_components_opened;
+OMPI_DECLSPEC extern ompi_list_t mca_bmi_base_modules_initialized;
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif /* MCA_BMI_BASE_H */

src/mca/bmi/base/bmi_base_close.c

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include <stdio.h>
+
+#include "include/constants.h"
+#include "event/event.h"
+#include "mca/mca.h"
+#include "mca/base/base.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/bmi/base/base.h"
+
+
+int mca_bmi_base_close(void)
+{
+  ompi_list_item_t *item;
+  mca_bmi_base_selected_module_t *sm;
+
+  /* disable event processing while cleaning up bmis */
+  ompi_event_disable();
+
+  /* Finalize all the bmi components and free their list items */
+
+  for (item = ompi_list_remove_first(&mca_bmi_base_modules_initialized);
+       NULL != item; 
+       item = ompi_list_remove_first(&mca_bmi_base_modules_initialized)) {
+    sm = (mca_bmi_base_selected_module_t *) item;
+
+    /* Blatebmiy ignore the return code (what would we do to recover,
+       anyway?  This component is going away, so errors don't matter
+       anymore) */
+
+    sm->bmi_module->bmi_finalize(sm->bmi_module);
+    free(sm);
+  }
+
+  /* Close all remaining opened components (may be one if this is a
+     OMPI RTE program, or [possibly] multiple if this is ompi_info) */
+
+  if (0 != ompi_list_get_size(&mca_bmi_base_components_opened)) {
+    mca_base_components_close(mca_bmi_base_output, 
+                              &mca_bmi_base_components_opened, NULL);
+  }
+
+  /* cleanup */
+  if(NULL != mca_bmi_base_include)
+     free(mca_bmi_base_include);
+  if(NULL != mca_bmi_base_exclude)
+     free(mca_bmi_base_exclude);
+
+  /* restore event processing */
+  ompi_event_enable();
+
+  /* All done */
+  return OMPI_SUCCESS;
+}

src/mca/bmi/base/bmi_base_open.c

@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+
+#include "ompi_config.h"
+#include <stdio.h>
+
+#include "mca/mca.h"
+#include "mca/base/base.h"
+#include "mca/base/mca_base_param.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/bmi/base/base.h"
+
+/*
+ *  mca_bmi_base_descriptor_t
+ */
+
+static void mca_bmi_base_descriptor_constructor(mca_bmi_base_descriptor_t* des)
+{
+    des->des_src = NULL;
+    des->des_src_cnt = 0;
+    des->des_dst = NULL;
+    des->des_dst_cnt = 0;
+    des->des_cbfunc = NULL;
+    des->des_cbdata = NULL;
+    des->des_flags = 0;
+}
+
+static void mca_bmi_base_descriptor_destructor(mca_bmi_base_descriptor_t* des)
+{
+}
+
+OBJ_CLASS_INSTANCE(
+    mca_bmi_base_descriptor_t,
+    ompi_list_item_t,
+    mca_bmi_base_descriptor_constructor,
+    mca_bmi_base_descriptor_destructor);
+
+
+/*
+ * The following file was created by configure.  It contains extern
+ * statements and the definition of an array of pointers to each
+ * component's public mca_base_component_t struct.
+ */
+
+#include "mca/bmi/base/static-components.h"
+
+
+/*
+ * Global variables
+ */
+int mca_bmi_base_output = -1;
+char* mca_bmi_base_include = NULL;
+char* mca_bmi_base_exclude = NULL;
+ompi_list_t mca_bmi_base_components_opened;
+ompi_list_t mca_bmi_base_modules_initialized;
+
+
+/**
+ * Function for finding and opening either all MCA components, or the one
+ * that was specifically requested via a MCA parameter.
+ */
+int mca_bmi_base_open(void)
+{
+  /* Open up all available components */
+
+  if (OMPI_SUCCESS != 
+      mca_base_components_open("bmi", 0, mca_bmi_base_static_components, 
+                               &mca_bmi_base_components_opened, true)) {
+    return OMPI_ERROR;
+  }
+
+  /* Initialize the list so that in mca_bmi_base_close(), we can
+     iterate over it (even if it's empty, as in the case of
+     ompi_info) */
+
+  OBJ_CONSTRUCT(&mca_bmi_base_modules_initialized, ompi_list_t);
+
+  /* register parameters */
+  mca_base_param_lookup_string(
+      mca_base_param_register_string("bmi","base","include",NULL,NULL), &mca_bmi_base_include);
+  mca_base_param_lookup_string(
+      mca_base_param_register_string("bmi","base","exclude",NULL,NULL), &mca_bmi_base_exclude);
+
+  /* All done */
+  return OMPI_SUCCESS;
+}

src/mca/bmi/base/bmi_base_select.c

@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include "util/argv.h"
+#include "runtime/runtime.h"
+#include "mca/mca.h"
+#include "mca/base/base.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/bmi/base/base.h"
+
+/**
+ * Function for weeding out bmi components that don't want to run.
+ *
+ * Call the init function on all available components to find out if
+ * they want to run.  Select all components that don't fail.  Failing
+ * components will be closed and unloaded.  The selected modules will
+ * be returned to the caller in a ompi_list_t.
+ */
+int mca_bmi_base_select(bool enable_progress_threads,
+                        bool enable_mpi_threads)
+{
+  int i, num_bmis;
+  ompi_list_item_t *item;
+  mca_base_component_list_item_t *cli;
+  mca_bmi_base_component_t *component;
+  mca_bmi_base_module_t **modules;
+  mca_bmi_base_selected_module_t *sm;
+
+  char** include = ompi_argv_split(mca_bmi_base_include, ',');
+  char** exclude = ompi_argv_split(mca_bmi_base_exclude, ',');
+
+  /* Traverse the list of opened modules; call their init
+     functions. */
+
+  item  = ompi_list_get_first(&mca_bmi_base_components_opened);
+  while(item != ompi_list_get_end(&mca_bmi_base_components_opened)) {
+    ompi_list_item_t *next = ompi_list_get_next(item);
+    cli = (mca_base_component_list_item_t *) item;
+
+    component = (mca_bmi_base_component_t *) cli->cli_component;
+
+    /* if there is an include list - item must be in the list to be included */
+    if ( NULL != include ) {
+        char** argv = include; 
+        bool found = false;
+        while(argv && *argv) {
+            if(strcmp(component->bmi_version.mca_component_name,*argv) == 0) {
+                found = true;
+                break;
+            }
+            argv++;
+        }
+        if(found == false) {
+            item = next;
+            continue;
+        }
+
+    /* otherwise - check the exclude list to see if this item has been specifically excluded */
+    } else if ( NULL != exclude ) {
+        char** argv = exclude; 
+        bool found = false;
+        while(argv && *argv) {
+            if(strcmp(component->bmi_version.mca_component_name,*argv) == 0) {
+                found = true;
+                break;
+            }
+            argv++;
+        }
+        if(found == true) {
+            item = next;
+            continue;
+        }
+    }
+
+    ompi_output_verbose(10, mca_bmi_base_output, 
+                       "select: initializing %s component %s",
+                       component->bmi_version.mca_type_name,
+                       component->bmi_version.mca_component_name);
+    if (NULL == component->bmi_init) {
+      ompi_output_verbose(10, mca_bmi_base_output,
+                         "select: no init function; ignoring component");
+    } else {
+      modules = component->bmi_init(&num_bmis, enable_progress_threads,
+                                     enable_mpi_threads);
+
+      /* If the component didn't initialize, remove it from the opened
+         list and remove it from the component repository */
+
+      if (NULL == modules) {
+        ompi_output_verbose(10, mca_bmi_base_output,
+                           "select: init returned failure");
+        ompi_output_verbose(10, mca_bmi_base_output,
+                            "select: module %s unloaded",
+                            component->bmi_version.mca_component_name);
+
+        mca_base_component_repository_release((mca_base_component_t *) component);
+        ompi_list_remove_item(&mca_bmi_base_components_opened, item);
+      } 
+
+      /* Otherwise, it initialized properly.  Save it. */
+
+      else {
+        ompi_output_verbose(10, mca_bmi_base_output,
+                           "select: init returned success");
+
+        for (i = 0; i < num_bmis; ++i) {
+          sm = malloc(sizeof(mca_bmi_base_selected_module_t));
+          if (NULL == sm) {
+            return OMPI_ERR_OUT_OF_RESOURCE;
+          }
+          OBJ_CONSTRUCT(sm, ompi_list_item_t);
+          sm->bmi_component = component;
+          sm->bmi_module = modules[i];
+          ompi_list_append(&mca_bmi_base_modules_initialized,
+                          (ompi_list_item_t*) sm);
+        }
+        free(modules);
+      }
+    }
+    item = next;
+  }
+
+  /* Finished querying all components.  Check for the bozo case. */
+
+  if (0 == ompi_list_get_size(&mca_bmi_base_modules_initialized)) {
+    /* JMS Replace with show_help */
+    orte_abort(1, "No bmi components available.  This shouldn't happen.");
+  }
+  return OMPI_SUCCESS;
+}

src/mca/bmi/bmi.h

@@ -0,0 +1,466 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ *
+ * Bit Mover Interface (BMI)
+ *
+ *
+ * BMI Initialization:
+ *
+ * During library initialization, all available BMI components are
+ * loaded and opened via their mca_base_open_component_fn_t
+ * function. The BMI open function should register any mca parameters
+ * used to tune/adjust the behaviour of the BMI (mca_base_param_register_int(),
+ * mca_base_param_register_string()). Note that the open function may fail
+ * if the resources (e.g. shared libraries, etc) required by the network
+ * transport are not available.
+ *
+ * The mca_bmi_base_component_init_fn_t() is then called for each of the
+ * components that are succesfully opened. The component init function may
+ * return either:
+ *
+ * (1) a NULL list of BMI modules if the transport is not available,
+ * (2) a list containing a single BMI module, where the BMI provides
+ *     a layer of abstraction over multiple physical devices (e.g. NICs),
+ * (3) a list containing multiple BMI modules where each BMI module
+ *     corresponds to a single physical device.
+ * 
+ * During module initialization, the module should post any addressing
+ * information required by its peers. An example would be the TCP
+ * listen port opened by the TCP module for incoming connection
+ * requests. This information is published to peers via the
+ * mca_base_modex_send() interface. Note that peer information is not
+ * guaranteed to be available via mca_base_modex_recv() during the 
+ * module's init function. However, it will be available during 
+ * BMI selection (mca_bmi_base_add_proc_fn_t()).
+ *
+ * BMI Selection:
+ *
+ * The upper layer builds an ordered list of the available BMI modules sorted 
+ * by their exclusivity ranking. This is a relative ranking that is used
+ * to determine the set of BMIs that may be used to reach a given destination.  
+ * During startup the BMI modules are queried via their 
+ * mca_bmi_base_add_proc_fn_t() to determine if they are able to reach
+ * a given destination.  The BMI module with the highest ranking that 
+ * returns success is selected. Subsequent BMI modules are selected only 
+ * if they have the same exclusivity ranking.
+ * 
+ * An example of how this might be used:
+ *
+ * BMI         Exclusivity   Comments
+ * --------    -----------   ------------------
+ * LO              100       Selected exclusively for local process
+ * SM               50       Selected exclusively for other processes on host
+ * IB                0       Selected based on network reachability
+ * IB                0       Selected based on network reachability
+ * TCP               0       Selected based on network reachability
+ * TCP               0       Selected based on network reachability
+ *
+ * When a BMI module is selected, it may choose to optionally return a
+ * pointer to an an mca_bmi_base_endpoint_t data structure to the PML. 
+ * This pointer is treated as an opaque handle by the PML and is
+ * returned to the BMI on subsequent data transfer calls to the 
+ * corresponding destination process.  The actual contents of the  
+ * data structure are defined on a per BMI basis, and may be used to 
+ * cache addressing or connection information, such as a TCP socket 
+ * or IB queue pair.
+ *
+ * Progress:
+ *
+ * By default, the library provides for polling based progress of outstanding
+ * requests. The BMI component exports an interface function (bmim_progress)
+ * that is called in a polling mode by the PML during calls into the MPI
+ * library. Note that the bmim_progress() function is called on the BMI component
+ * rather than each BMI module. This implies that the BMI author is responsible
+ * for iterating over the pending operations in each of the BMI modules associated 
+ * with the component.
+ * 
+ * On platforms where threading support is provided, the library provides the
+ * option of building with asynchronous threaded progress. In this case, the BMI 
+ * author is responsible for providing a thread to progress pending operations.
+ * A thread is associated with the BMI component/module such that transport specific 
+ * functionality/APIs may be used to block the thread ubmil a pending operation 
+ * completes. This thread MUST NOT poll for completion as this would oversubscribe 
+ * the CPU. 
+ *
+ * Note that in the threaded case the PML may choose to use a hybrid approach,
+ * such that polling is implemented from the user thread for a fixed number of
+ * cycles before relying on the background thread(s) to complete requests. If 
+ * possible the BMI should support the use of both modes concurrebmiy.
+ *
+ */
+
+#include "mca/mca.h"
+
+#ifndef MCA_BMI_H
+#define MCA_BMI_H
+
+#include "include/types.h"
+
+/*
+ * BMI types
+ */
+
+struct mca_bmi_base_module_t;
+struct mca_bmi_base_endpoint_t;
+struct mca_bmi_base_descriptor_t;
+
+
+/* send/recv operations require tag matching */
+typedef uint8_t mca_bmi_base_tag_t;
+
+/* reserved tag values */
+#define MCA_BMI_TAG_BMI  0
+#define MCA_BMI_TAG_PML  1
+#define MCA_BMI_TAG_USR  2
+
+
+typedef void (*mca_bmi_base_completion_fn_t)(
+    struct mca_bmi_base_module_t*,
+    struct mca_bmi_base_endpoint_t*,
+    struct mca_bmi_base_descriptor_t*,
+    int status);
+
+
+/**
+ * Describes a region/segment of memory that is addressable 
+ * by an BMI.
+ */
+
+struct mca_bmi_base_segment_t {
+    ompi_ptr_t seg_addr;
+    uint32_t   seg_len;
+    union {
+        uint32_t key32[2];
+        uint64_t key64;
+        uint8_t  key8[8];
+    } seg_key;
+};
+typedef struct mca_bmi_base_segment_t mca_bmi_base_segment_t;
+
+/**
+ * A descriptor that holds the parameters to a send/put/get
+ * operation along w/ a callback function that is called on
+ * completion of the request.
+ */
+
+struct mca_bmi_base_descriptor_t {
+    ompi_list_item_t super;  
+    mca_bmi_base_segment_t *des_src;
+    size_t des_src_cnt;
+    mca_bmi_base_segment_t *des_dst;
+    size_t des_dst_cnt;
+    mca_bmi_base_completion_fn_t des_cbfunc;
+    void* des_cbdata;
+    int32_t des_flags;
+};
+typedef struct mca_bmi_base_descriptor_t mca_bmi_base_descriptor_t;
+
+OBJ_CLASS_DECLARATION(mca_bmi_base_descriptor_t);
+
+                                                                                                               
+#define MCA_BMI_DES_FLAGS_BMI  0x0001
+#define MCA_BMI_DES_FLAGS_PML  0x0002
+
+
+/*
+ *  BMI component interface functions and datatype.
+ */
+
+/**
+ * MCA->BMI Ibmializes the BMI component and creates specific BMI
+ * module(s).
+ *
+ * @param num_bmis (OUT) Returns the number of bmi modules created, or 0
+ *                       if the transport is not available.
+ *
+ * @param enable_progress_threads (IN) Whether this component is
+ * allowed to run a hidden/progress thread or not.
+ *
+ * @param enable_mpi_threads (IN) Whether support for multiple MPI
+ * threads is enabled or not (i.e., MPI_THREAD_MULTIPLE), which
+ * indicates whether multiple threads may invoke this component
+ * simultaneously or not.
+ *
+ * @return Array of pointers to BMI modules, or NULL if the transport  
+ *         is not available.
+ *
+ * During component initialization, the BMI component should discover
+ * the physical devices that are available for the given transport,
+ * and create a BMI module to represent each device. Any addressing 
+ * information required by peers to reach the device should be published 
+ * during this function via the mca_base_modex_send() interface. 
+ *
+ */
+
+typedef struct mca_bmi_base_module_t** (*mca_bmi_base_component_init_fn_t)(
+    int *num_bmis, 
+    bool enable_progress_threads,
+    bool enable_mpi_threads
+);
+
+/**
+ * MCA->BMI Called to progress outstanding requests for
+ * non-threaded polling environments.
+ *
+ * @param tstamp     Current time.
+ * @return           OMPI_SUCCESS or error code on failure.
+ */
+
+typedef int (*mca_bmi_base_component_progress_fn_t)(void);
+
+
+/**
+ *  BMI component descriptor. Contains component version information
+ *  and component open/close/init functions.
+ */
+
+struct mca_bmi_base_component_1_0_0_t {
+  mca_base_component_t bmi_version;
+  mca_base_component_data_1_0_0_t bmi_data;
+  mca_bmi_base_component_init_fn_t bmi_init;
+  mca_bmi_base_component_progress_fn_t bmi_progress;
+};
+typedef struct mca_bmi_base_component_1_0_0_t mca_bmi_base_component_1_0_0_t;
+typedef struct mca_bmi_base_component_1_0_0_t mca_bmi_base_component_t;
+
+
+/*
+ * BMI module interface functions and datatype.
+ */
+
+/**
+ * MCA->BMI Clean up any resources held by BMI module 
+ * before the module is unloaded.
+ *  
+ * @param bmi (IN)   BMI module.
+ *
+ * Prior to unloading a BMI module, the MCA framework will call 
+ * the BMI finalize method of the module. Any resources held by 
+ * the BMI should be released and if required the memory corresponding
+ * to the BMI module freed.
+ * 
+ */
+typedef int (*mca_bmi_base_module_finalize_fn_t)(
+    struct mca_bmi_base_module_t* bmi
+);
+                                                                                                         
+/**
+ * PML->BMI notification of change in the process list. 
+ *
+ * @param bmi (IN)            BMI module
+ * @param nprocs (IN)         Number of processes
+ * @param procs (IN)          Set of processes
+ * @param endpoint (OUT)      Set of (optional) mca_bmi_base_endpoint_t structures by BMI.
+ * @param reachable (OUT)     Bitmask indicating set of peer processes that are reachable by this BMI.
+ * @return                    OMPI_SUCCESS or error status on failure.
+ *
+ * The mca_bmi_base_module_add_procs_fn_t() is called by the PML to 
+ * determine the set of BMIs that should be used to reach each process.
+ * Any addressing information exported by the peer via the mca_base_modex_send()
+ * function should be available during this call via the corresponding 
+ * mca_base_modex_recv() function. The BMI may utilize this information to 
+ * determine reachability of each peer process. 
+ *
+ * For each process that is reachable by the BMI, the bit corresponding to the index 
+ * into the proc array (nprocs) should be set in the reachable bitmask. The PML
+ * provides the BMI the option to return a pointer to a data structure defined
+ * by the BMI that is returned to the BMI on subsequent calls to the BMI data
+ * transfer functions (e.g bmi_send). This may be used by the BMI to cache any addressing 
+ * or connection information (e.g. TCP socket, IP queue pair).
+ */
+typedef int (*mca_bmi_base_module_add_procs_fn_t)(
+    struct mca_bmi_base_module_t* bmi, 
+    size_t nprocs,
+    struct ompi_proc_t** procs, 
+    struct mca_bmi_base_endpoint_t** endpoints,
+    struct ompi_bitmap_t* reachable
+);
+
+/**
+ * Notification of change to the process list.
+ *
+ * @param bmi (IN)     BMI module
+ * @param nprocs (IN)  Number of processes
+ * @param proc (IN)    Set of processes
+ * @param peer (IN)    Set of peer addressing information.
+ * @return             Status indicating if cleanup was successful
+ *
+ * When the process list changes, the PML notifies the BMI of the
+ * change, to provide the opportunity to cleanup or release any
+ * resources associated with the peer.
+ */
+typedef int (*mca_bmi_base_module_del_procs_fn_t)(
+    struct mca_bmi_base_module_t* bmi, 
+    size_t nprocs,
+    struct ompi_proc_t** procs, 
+    struct mca_bmi_base_endpoint_t**
+);
+
+/**
+ * Callback function that is called asynchronously on receipt
+ * of data from the transport layer.
+ */
+
+typedef void (*mca_bmi_base_module_recv_cb_fn_t)(
+    struct mca_bmi_base_module_t* bmi, 
+    mca_bmi_base_tag_t tag,
+    mca_bmi_base_descriptor_t* descriptor,
+    void* cbdata
+);
+
+
+/**
+ * Register a callback function that is called on receipt
+ * of a fragment.
+ *
+ * @param bmi (IN)     BMI module
+ * @return             Status indicating if cleanup was successful
+ *
+ * When the process list changes, the PML notifies the BMI of the
+ * change, to provide the opportunity to cleanup or release any
+ * resources associated with the peer.
+ */
+typedef int (*mca_bmi_base_module_register_fn_t)(
+    struct mca_bmi_base_module_t* bmi, 
+    mca_bmi_base_tag_t tag,
+    mca_bmi_base_module_recv_cb_fn_t cbfunc,
+    void* cbdata
+);
+
+
+/**
+ * Allocate a segment.
+ *
+ * @param bmi (IN)      BMI module
+ * @param size (IN)     Request segment size.
+ */
+typedef mca_bmi_base_descriptor_t* (*mca_bmi_base_module_alloc_fn_t)(
+    struct mca_bmi_base_module_t* bmi,
+    size_t size
+);
+
+/**
+ * Return a segment allocated by this BMI.
+ *
+ * @param bmi (IN)      BMI module
+ * @param segment (IN)  Allocated segment.
+ */
+typedef int (*mca_bmi_base_module_free_fn_t)(
+    struct mca_bmi_base_module_t* bmi,
+    mca_bmi_base_descriptor_t* descriptor
+);
+
+
+/**
+ * Pack data and return a descriptor that can be
+ * used for send/put.
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+typedef struct mca_bmi_base_descriptor_t* (*mca_bmi_base_module_pack_fn_t)(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* peer,
+    struct ompi_convertor_t* convertor,
+    size_t reserve,
+    size_t* size
+);
+
+
+/**
+ * Initiate a send to the peer.
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+typedef int (*mca_bmi_base_module_send_fn_t)(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* endpoint,
+    struct mca_bmi_base_descriptor_t* descriptor,
+    mca_bmi_base_tag_t tag
+);
+
+
+/**
+ * Initiate a put to the peer.
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+
+typedef int (*mca_bmi_base_module_put_fn_t)(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* peer,
+    struct mca_bmi_base_descriptor_t* descriptor
+);
+
+/**
+ * PML->BMI Initiate a get from a peer. 
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ *
+ */
+
+typedef int (*mca_bmi_base_module_get_fn_t)(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* endpoint,
+    struct mca_bmi_base_descriptor_t* descriptor
+);
+
+
+/**
+ * BMI module interface functions and attributes.
+ */
+struct mca_bmi_base_module_t {
+
+    /* BMI common attributes */
+    mca_bmi_base_component_t* bmi_component; /**< pointer back to the BMI component structure */
+    size_t      bmi_first_frag_size;  /**< maximum size of first fragment -- eager send */
+    size_t      bmi_min_frag_size;    /**< threshold below which the BMI will not fragment */
+    size_t      bmi_max_frag_size;    /**< maximum fragment size supported by the BMI */
+    uint32_t    bmi_exclusivity;      /**< indicates this BMI should be used exclusively */
+    uint32_t    bmi_latency;          /**< relative ranking of latency used to prioritize bmis */
+    uint32_t    bmi_bandwidth;        /**< bandwidth (Mbytes/sec) supported by each endpoint */
+    uint32_t    bmi_flags;            /**< flags (put/get...) */
+
+    /* BMI function table */
+    mca_bmi_base_module_add_procs_fn_t   bmi_add_procs;
+    mca_bmi_base_module_del_procs_fn_t   bmi_del_procs;
+    mca_bmi_base_module_register_fn_t    bmi_register;
+    mca_bmi_base_module_finalize_fn_t    bmi_finalize;
+
+    mca_bmi_base_module_alloc_fn_t       bmi_alloc;
+    mca_bmi_base_module_free_fn_t        bmi_free;
+    mca_bmi_base_module_pack_fn_t        bmi_pack;
+    mca_bmi_base_module_send_fn_t        bmi_send;
+    mca_bmi_base_module_put_fn_t         bmi_put;
+    mca_bmi_base_module_get_fn_t         bmi_get;
+};
+typedef struct mca_bmi_base_module_t mca_bmi_base_module_t;
+
+/*
+ * Macro for use in modules that are of type bmi v1.0.0
+ */
+#define MCA_BMI_BASE_VERSION_1_0_0 \
+  /* coll v1.0 is chained to MCA v1.0 */ \
+  MCA_BASE_VERSION_1_0_0, \
+  /* bmi v1.0 */ \
+  "bmi", 1, 0, 0
+
+#endif /* OMPI_MCA_BMI_H */

src/mca/bmi/sm/.ompi_unignore

@@ -0,0 +1,2 @@
+twoodall
+gshipman

src/mca/bmi/sm/Makefile.am

@@ -0,0 +1,45 @@
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# Use the top-level Makefile.options
+
+include $(top_ompi_srcdir)/config/Makefile.options
+
+libmca_bmi_sm_la_SOURCES = \
+    bmi_sm.c \
+    bmi_sm.h \
+    bmi_sm_component.c \
+    bmi_sm_frag.c \
+    bmi_sm_frag.h 
+
+# Make the output library in this directory, and name it either
+# mca_<type>_<name>.la (for DSO builds) or libmca_<type>_<name>.la
+# (for static builds).
+
+if OMPI_BUILD_bmi_sm_DSO
+component_noinst =
+component_install = mca_bmi_sm.la
+else
+component_noinst = libmca_bmi_sm.la
+component_install =
+endif
+
+mcacomponentdir = $(libdir)/openmpi
+mcacomponent_LTLIBRARIES = $(component_install)
+mca_bmi_sm_la_LDFLAGS = -module -avoid-version
+
+noinst_LTLIBRARIES = $(component_noinst)
+libmca_bmi_sm_la_LDFLAGS = -module -avoid-version

src/mca/bmi/sm/bmi_sm.c

@@ -0,0 +1,819 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include <string.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "threads/mutex.h"
+#include "datatype/datatype.h"
+#include "include/sys/atomic.h"
+#include "util/output.h"
+#include "util/if.h"
+#include "util/proc_info.h"
+#include "util/printf.h"
+#include "util/sys_info.h"
+#include "class/ompi_fifo.h"
+#include "class/ompi_free_list.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/mpool/base/base.h"
+#include "mca/common/sm/common_sm_mmap.h"
+#include "bmi_sm.h"
+#include "bmi_sm_endpoint.h"
+#include "bmi_sm_frag.h"
+#include "bmi_sm_fifo.h"
+
+
+mca_bmi_sm_t mca_bmi_sm[2] = {
+    {
+        {
+        &mca_bmi_sm_component.super,
+        0, /* bmi_first_frag_size */
+        0, /* bmi_min_frag_size */
+        0, /* bmi_max_frag_size */
+        0, /* bmi_exclusivity */
+        0, /* bmi_latency */
+        0, /* bmi_bandwidth */
+        0, /* bmi flags */
+        mca_bmi_sm_add_procs_same_base_addr,
+        mca_bmi_sm_del_procs,
+        mca_bmi_sm_register,
+        mca_bmi_sm_finalize,
+        mca_bmi_sm_alloc,
+        mca_bmi_sm_free,
+        mca_bmi_sm_pack,
+        mca_bmi_sm_send, 
+        NULL,  /* put */
+        NULL   /* get */
+        }
+    },
+    {
+        {
+        &mca_bmi_sm_component.super,
+        0, /* bmi_first_frag_size */
+        0, /* bmi_min_frag_size */
+        0, /* bmi_max_frag_size */
+        0, /* bmi_exclusivity */
+        0, /* bmi_latency */
+        0, /* bmi_bandwidth */
+        0, /* bmi flags */
+        mca_bmi_sm_add_procs,
+        mca_bmi_sm_del_procs,
+        mca_bmi_sm_register,
+        mca_bmi_sm_finalize,
+        mca_bmi_sm_alloc,  
+        mca_bmi_sm_free,  
+        mca_bmi_sm_pack,
+        mca_bmi_sm_send,  
+        NULL, /* get function */
+        NULL  /* put function */
+        }
+    }
+};
+
+/* track information needed to synchronise a Shared Memory BMI module */
+mca_bmi_sm_module_resource_t mca_bmi_sm_module_resource;
+
+
+int mca_bmi_sm_add_procs_same_base_addr(
+    struct mca_bmi_base_module_t* bmi, 
+    size_t nprocs, 
+    struct ompi_proc_t **procs, 
+    struct mca_bmi_base_endpoint_t **peers,
+    ompi_bitmap_t* reachability)
+{
+    int return_code=OMPI_SUCCESS;
+    size_t i,j,proc,size,n_to_allocate,length;
+    int n_local_procs,cnt,len, my_len;
+    mca_bmi_sm_exchange_t **sm_proc_info;
+    ompi_proc_t* my_proc; /* pointer to caller's proc structure */
+    mca_bmi_sm_t *bmi_sm;
+    ompi_fifo_t *my_fifos;
+    ompi_fifo_t * volatile *fifo_tmp;
+    bool same_sm_base;
+    ssize_t diff;
+    volatile char **tmp_ptr;
+
+    /* initializion */
+    for(i=0 ; i < nprocs ; i++ ) {
+        peers[i]=NULL;
+    }
+    bmi_sm=(mca_bmi_sm_t *)bmi;
+
+    /* allocate array to hold setup shared memory from all
+     * other procs */
+    sm_proc_info=(mca_bmi_sm_exchange_t **)
+        malloc(nprocs*sizeof(mca_bmi_sm_exchange_t *));
+    if( NULL == sm_proc_info ){
+        return_code=OMPI_ERR_OUT_OF_RESOURCE;
+        goto CLEANUP;
+    }
+    mca_bmi_sm_component.sm_proc_connect=(int *) malloc(nprocs*sizeof(int));
+    if( NULL == mca_bmi_sm_component.sm_proc_connect ){
+        return_code=OMPI_ERR_OUT_OF_RESOURCE;
+        goto CLEANUP;
+    }
+
+    /* initialize sm_proc_info and sm_proc_connect*/
+    for(proc=0 ; proc < nprocs ; proc++ ) {
+        sm_proc_info[proc]=0;
+        mca_bmi_sm_component.sm_proc_connect[proc]=0;
+    }
+
+    /* get pointer to my proc structure */
+    my_proc=ompi_proc_local();
+    if( NULL == my_proc ) {
+        return_code=OMPI_ERR_OUT_OF_RESOURCE;
+        goto CLEANUP;
+    }
+    my_len=strlen(orte_system_info.nodename);
+
+    /* Get unique host identifier for each process in the list,
+     * and idetify procs that are on this host.  Add procs on this
+     * host to shared memory reachbility list.  Also, get number
+     * of local procs in the prcs list. */
+    n_local_procs=0;
+    for( proc=0 ; proc < nprocs; proc++ ) {
+        /* check to see if this is me */
+        if( my_proc == procs[proc] ) {
+            mca_bmi_sm_component.my_smp_rank=n_local_procs;
+        }
+        if( procs[proc]->proc_name.jobid != my_proc->proc_name.jobid ) {
+            continue;
+        }
+
+        return_code = mca_base_modex_recv(
+                &mca_bmi_sm_component.super.bmi_version, procs[proc],
+                (void**)(&(sm_proc_info[proc])), &size);
+        if(return_code != OMPI_SUCCESS) {
+            ompi_output(0, "mca_bmi_sm_add_procs: mca_base_modex_recv: failed with return value=%d", return_code);
+            goto CLEANUP;
+        }
+
+       /* for zero length, just continue - comparison is meaningless*/
+       if( 0 >= size ) {
+           continue;
+       }
+
+       /* check to see if this proc is on my host */
+       len=strlen((char *)(sm_proc_info[proc]));
+       if( len == my_len ) {
+           if( 0 == strncmp(orte_system_info.nodename,
+                       (char *)(sm_proc_info[proc]),len) ) {
+               struct mca_bmi_base_endpoint_t *peer = peers[proc];
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+               char path[PATH_MAX];
+               /* int flags; */
+#endif
+
+               /* initialize the peers information */
+               peer = peers[proc]=malloc(sizeof(struct mca_bmi_base_endpoint_t));
+               if( NULL == peer ){
+                   return_code=OMPI_ERR_OUT_OF_RESOURCE;
+                   goto CLEANUP;
+               }
+               peer->peer_smp_rank=n_local_procs+
+                   mca_bmi_sm_component.num_smp_procs;
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+               sprintf(path, "%s/sm_fifo.%d", orte_process_info.job_session_dir, 
+                   procs[proc]->proc_name.vpid);
+               peer->fifo_fd = open(path, O_WRONLY);
+               if(peer->fifo_fd < 0) {
+                   ompi_output(0, "mca_bmi_sm_add_procs: open(%s) failed with errno=%d\n", path, errno);
+                   goto CLEANUP;
+               }
+#endif
+               n_local_procs++;
+               mca_bmi_sm_component.sm_proc_connect[proc]=SM_CONNECTED;
+           }
+       }
+    }
+    if( n_local_procs == 0) {
+        return_code = OMPI_SUCCESS;
+        goto CLEANUP;
+    }
+
+    /* lookup shared memory pool */
+    if(NULL == mca_bmi_sm_component.sm_mpool) {
+        mca_bmi_sm_component.sm_mpool =
+            mca_mpool_base_module_lookup(mca_bmi_sm_component.sm_mpool_name);
+                                                                                                                     
+        /* Sanity check to ensure that we found it */
+        if (NULL == mca_bmi_sm_component.sm_mpool) {
+           return_code = OMPI_ERR_OUT_OF_RESOURCE;
+           goto CLEANUP;
+        }
+        mca_bmi_sm_component.sm_mpool_base =
+            mca_bmi_sm_component.sm_mpool->mpool_base();
+    }
+
+    /* make sure that my_smp_rank has been defined */
+    if( 0xFFFFFFFF == mca_bmi_sm_component.my_smp_rank ) {
+        return_code=OMPI_ERROR;
+        goto CLEANUP;
+    }
+
+    /* see if need to allocate space for extra procs */
+    if(  0 > mca_bmi_sm_component.sm_max_procs ) {
+
+        /* no limit */
+        if( 0 <= mca_bmi_sm_component.sm_extra_procs ) {
+            /* limit */
+            mca_bmi_sm_component.sm_max_procs=n_local_procs+
+                mca_bmi_sm_component.sm_extra_procs;
+        } else {
+            /* no limit */
+            mca_bmi_sm_component.sm_max_procs=2*n_local_procs;
+        }
+    }
+    n_to_allocate=mca_bmi_sm_component.sm_max_procs;
+
+    /* make sure n_to_allocate is greater than 0 */
+
+    if ( !mca_bmi_sm[0].bmi_inited ) {
+        /* set the shared memory offset */
+        mca_bmi_sm_component.sm_offset=(ssize_t *)
+            malloc(n_to_allocate*sizeof(ssize_t));
+            if(NULL == mca_bmi_sm_component.sm_offset ) {
+            return_code=OMPI_ERR_OUT_OF_RESOURCE;
+            goto CLEANUP;
+        }
+
+        /* create a list of peers */
+        mca_bmi_sm_component.sm_peers=(struct mca_bmi_base_endpoint_t**)
+            malloc(n_to_allocate*sizeof(struct mca_bmi_base_endpoint_t*));
+        if(NULL == mca_bmi_sm_component.sm_peers ) {
+            return_code=OMPI_ERR_OUT_OF_RESOURCE;
+            goto CLEANUP;
+        }
+    }
+
+    /* set local proc's smp rank in the peers structure for
+     * rapid access */
+    for( proc=0 ; proc < nprocs; proc++ ) {
+        struct mca_bmi_base_endpoint_t* peer = peers[proc];
+        if(NULL != peer) {
+            mca_bmi_sm_component.sm_peers[peer->peer_smp_rank] = peer;
+            peer->my_smp_rank=mca_bmi_sm_component.my_smp_rank;
+        }
+    }
+
+    /* Allocate Shared Memory BMI process coordination
+     * data structure.  This will reside in shared memory */
+
+    /* 
+     * Create backing file - only first time through 
+     */
+    if ( !mca_bmi_sm[0].bmi_inited ) {
+        /* set file name */
+        len=asprintf(&(mca_bmi_sm_component.sm_resouce_ctl_file),
+                "%s/shared_mem_bmi_module.%s",orte_process_info.job_session_dir,
+                orte_system_info.nodename);
+        if( 0 > len ) {
+            goto CLEANUP;
+        }
+
+        size=sizeof(mca_bmi_sm_module_resource_t);
+        if(NULL==(mca_bmi_sm_component.mmap_file=mca_common_sm_mmap_init(size,
+                        mca_bmi_sm_component.sm_resouce_ctl_file,
+                        sizeof(mca_bmi_sm_module_resource_t), 8 ))) 
+        {
+            ompi_output(0, "mca_bmi_sm_add_procs: unable to create shared memory BMI coordinating strucure :: size %ld \n",
+                    size);
+            return_code=OMPI_ERROR;
+            goto CLEANUP;
+        }
+
+        /* set the pointer to the shared memory control structure */
+        mca_bmi_sm_component.sm_ctl_header=(mca_bmi_sm_module_resource_t *)
+            mca_bmi_sm_component.mmap_file->map_seg;
+
+
+        /* Allocate a fixed size pointer array for the 2-D Shared memory queues.
+         * Excess slots will be allocated for future growth.  One could
+         * make this array growable, but then one would need to uses mutexes
+         * for any access to these queues to ensure data consistancy when
+         * the array is grown */
+   
+        if(0 == mca_bmi_sm_component.my_smp_rank ) {
+            /* allocate ompi_fifo_t strucutes for each fifo of the queue
+             * pairs - one per pair of local processes */
+            /* check to make sure number of local procs is within the
+             * specified limits */
+            if( ( 0 < mca_bmi_sm_component.sm_max_procs ) &&
+                    ( n_local_procs > mca_bmi_sm_component.sm_max_procs) ) {
+                return_code=OMPI_ERROR;
+                goto CLEANUP;
+            }
+
+            /* allocate array of ompi_fifo_t* elements -
+             * offset relative to base segement is stored, so that
+             * this can be used by other procs */
+            mca_bmi_sm_component.sm_ctl_header->fifo=
+                mca_bmi_sm_component.sm_mpool->mpool_alloc
+                (n_to_allocate*sizeof(ompi_fifo_t *),
+                 CACHE_LINE_SIZE);
+            if ( NULL == mca_bmi_sm_component.sm_ctl_header->fifo ) {
+                return_code=OMPI_ERR_OUT_OF_RESOURCE;
+                goto CLEANUP;
+            }
+            /* initiazlize the pointer array */
+            for(i=0 ; i < n_to_allocate ; i++ ) {
+                mca_bmi_sm_component.sm_ctl_header->fifo[i]=NULL;
+            }
+
+            /*  allocate and initialize the array to hold the virtual address
+             *  of the shared memory base */
+            mca_bmi_sm_component.sm_ctl_header->segment_header.
+                base_shared_mem_segment =  ( volatile char **)
+                mca_bmi_sm_component.sm_mpool->mpool_alloc
+                (n_to_allocate*sizeof(char *), CACHE_LINE_SIZE);
+            if ( NULL == mca_bmi_sm_component.sm_ctl_header->segment_header.
+                    base_shared_mem_segment ) {
+                return_code=OMPI_ERR_OUT_OF_RESOURCE;
+                goto CLEANUP;
+            }
+            /* initialize the pointer array */
+            for(i=0 ; i < n_to_allocate ; i++ ) {
+                mca_bmi_sm_component.sm_ctl_header->segment_header.
+                    base_shared_mem_segment[i]=NULL;
+            }
+
+            /*  allocate and initialize the array of flags indicating
+             *  when the virtual address of the shared memory address
+             *  has been set */
+            mca_bmi_sm_component.sm_ctl_header->segment_header.
+                base_shared_mem_flags = ( int *)
+                mca_bmi_sm_component.sm_mpool->mpool_alloc
+                (n_to_allocate*sizeof(int), CACHE_LINE_SIZE);
+            if ( NULL == mca_bmi_sm_component.sm_ctl_header->segment_header.
+                    base_shared_mem_flags ) {
+                return_code=OMPI_ERR_OUT_OF_RESOURCE;
+                goto CLEANUP;
+            }
+            for(i=0 ; i < n_to_allocate ; i++ ) {
+                mca_bmi_sm_component.sm_ctl_header->segment_header.
+                    base_shared_mem_flags[i]=0;
+            }
+
+            /* set the addresses to be a relative, so that
+             * they can be used by other procs */
+            mca_bmi_sm_component.sm_ctl_header->fifo=
+                (volatile ompi_fifo_t **)
+                ( (char *)(mca_bmi_sm_component.sm_ctl_header->fifo)-
+                  (char *)(mca_bmi_sm_component.sm_mpool->mpool_base()) );
+
+                mca_bmi_sm_component.sm_ctl_header->segment_header.
+                    base_shared_mem_segment=( volatile char **)
+                    ( (char *)(mca_bmi_sm_component.sm_ctl_header->
+                               segment_header.base_shared_mem_segment) -
+                      (char *)(mca_bmi_sm_component.sm_mpool->mpool_base()) );
+
+            /* allow other procs to use this shared memory map */
+            mca_bmi_sm_component.mmap_file->map_seg->seg_inited=true;
+
+            /* memory barrier to ensure this flag is set before other
+             *  flags are set */
+            ompi_atomic_mb();
+        }
+   
+        /* Note:  Need to make sure that proc 0 initializes control
+         * structures before any of the other procs can progress */
+        if( 0 != mca_bmi_sm_component.my_smp_rank ) 
+        {
+            /* spin unitl local proc 0 initializes the segment */
+            while(!mca_bmi_sm_component.mmap_file->map_seg->seg_inited)
+            { ; }
+        }
+                
+        /* set the base of the shared memory segment, and flag
+         * indicating that it is set */
+        tmp_ptr=(volatile char **)
+            ( (char *)(mca_bmi_sm_component.sm_ctl_header->segment_header.
+              base_shared_mem_segment)  +
+		      (long )(mca_bmi_sm_component.sm_mpool->mpool_base()) );
+        tmp_ptr[mca_bmi_sm_component.my_smp_rank]=
+            mca_bmi_sm_component.sm_mpool->mpool_base();
+        /* memory barrier to ensure this flag is set before other
+         *  flags are set */
+        ompi_atomic_mb();
+
+        mca_bmi_sm_component.sm_ctl_header->segment_header.
+            base_shared_mem_flags[mca_bmi_sm_component.my_smp_rank]=1;
+
+        /*
+         * initialize the array of fifo's "owned" by this process
+         * The virtual addresses are valid only in the sender's
+         * address space - unless the base of the shared memory
+         * segment is mapped at the same location in the reader's
+         * virtual address space.
+         */
+        my_fifos=( ompi_fifo_t *)
+            mca_bmi_sm_component.sm_mpool->mpool_alloc
+            (n_to_allocate*sizeof(ompi_fifo_t), CACHE_LINE_SIZE);
+        if ( NULL == my_fifos ) {
+            return_code=OMPI_ERR_OUT_OF_RESOURCE;
+            goto CLEANUP;
+        }
+
+        for( j=0 ; j < n_to_allocate ; j++ ) {
+            my_fifos[j].head=OMPI_CB_FREE;
+            my_fifos[j].tail=OMPI_CB_FREE;
+            ompi_atomic_unlock(&(my_fifos[j].head_lock));
+            ompi_atomic_unlock(&(my_fifos[j].tail_lock));
+        }
+        fifo_tmp=(ompi_fifo_t * volatile *)
+                ( (char *)(mca_bmi_sm_component.sm_ctl_header->fifo) +
+                  (long)(mca_bmi_sm_component.sm_mpool->mpool_base()) );
+        /* RLG : need memory barrier */
+        fifo_tmp[mca_bmi_sm_component.my_smp_rank]=my_fifos;
+
+        /* cache the pointer to the 2d fifo array.  These addresses
+         * are valid in the current process space */
+        mca_bmi_sm_component.fifo=(ompi_fifo_t **)
+            malloc(sizeof(ompi_fifo_t *)*n_to_allocate);
+        if( NULL == mca_bmi_sm_component.fifo ) {
+            return_code=OMPI_ERROR;
+            goto CLEANUP;
+        }
+        mca_bmi_sm_component.fifo[mca_bmi_sm_component.my_smp_rank]=my_fifos;
+    }
+
+    /* cache the pointers to the rest of the fifo arrays */
+    fifo_tmp=(ompi_fifo_t * volatile *)
+        ( (char *)(mca_bmi_sm_component.sm_ctl_header->fifo) +
+          (long)(mca_bmi_sm_component.sm_mpool->mpool_base()) );
+    for( j=mca_bmi_sm_component.num_smp_procs ; j <
+            mca_bmi_sm_component.num_smp_procs+n_local_procs ; j++ ) {
+
+        /* spin until this element is allocated */
+        while ( NULL == fifo_tmp[j] )
+        { ; }
+
+        tmp_ptr=(volatile char **)
+            ( (char *)mca_bmi_sm_component.sm_ctl_header->
+              segment_header.base_shared_mem_segment +
+              (long)mca_bmi_sm_component.sm_mpool->mpool_base());
+        diff= tmp_ptr[mca_bmi_sm_component.my_smp_rank]-tmp_ptr[j];
+        mca_bmi_sm_component.fifo[j]=
+            ( ompi_fifo_t *)( (char *)fifo_tmp[j]+diff);
+        mca_bmi_sm_component.sm_offset[j]=tmp_ptr[j]-
+            tmp_ptr[mca_bmi_sm_component.my_smp_rank];
+                
+    }
+
+    /* initialize some of the free-lists */
+    if( !mca_bmi_sm[0].bmi_inited ) {
+        /* some initialization happens only the first time this routine
+         * is called, i.e. when bmi_inited is false */
+
+        /* initialize fragment descriptor free list */
+
+        /* 
+         * first fragment 
+         */
+
+        /* allocation will be for the fragment descriptor, payload buffer,
+         * and padding to ensure proper alignment can be acheived */
+        length=sizeof(mca_bmi_sm_frag_t)+
+            mca_bmi_sm_component.fragment_alignment+
+            mca_bmi_sm_component.first_fragment_size;
+        ompi_free_list_init(&mca_bmi_sm_component.sm_frags1, length,
+                OBJ_CLASS(mca_bmi_sm_frag1_t),
+                mca_bmi_sm_component.sm_free_list_num,
+                mca_bmi_sm_component.sm_free_list_max,
+                mca_bmi_sm_component.sm_free_list_inc,
+                mca_bmi_sm_component.sm_mpool); /* use shared-memory pool */
+
+        length=sizeof(mca_bmi_sm_frag_t)+
+            mca_bmi_sm_component.fragment_alignment+
+            mca_bmi_sm_component.max_fragment_size;
+        ompi_free_list_init(&mca_bmi_sm_component.sm_frags2, length,
+                OBJ_CLASS(mca_bmi_sm_frag2_t),
+                mca_bmi_sm_component.sm_free_list_num,
+                mca_bmi_sm_component.sm_free_list_max,
+                mca_bmi_sm_component.sm_free_list_inc,
+                mca_bmi_sm_component.sm_mpool); /* use shared-memory pool */
+
+        /* set up mca_bmi_sm_component.list_smp_procs_same_base_addr */
+        mca_bmi_sm_component.list_smp_procs_same_base_addr=(int *)
+            malloc(mca_bmi_sm_component.sm_max_procs*sizeof(int));
+        if( NULL == mca_bmi_sm_component.list_smp_procs_same_base_addr ){
+            return_code=OMPI_ERR_OUT_OF_RESOURCE;
+            goto CLEANUP;
+        }
+
+        /* set up mca_bmi_sm_component.list_smp_procs_different_base_addr */
+        mca_bmi_sm_component.list_smp_procs_different_base_addr=(int *)
+            malloc(mca_bmi_sm_component.sm_max_procs*sizeof(int));
+        if( NULL == mca_bmi_sm_component.list_smp_procs_different_base_addr ){
+            return_code=OMPI_ERR_OUT_OF_RESOURCE;
+            goto CLEANUP;
+        }
+
+        /* set flag indicating bmi has been inited */
+        bmi_sm->bmi_inited=true;
+    }
+
+    /* set connectivity */
+    cnt=0;
+    for(proc = 0 ; proc < nprocs ; proc++ ) {
+
+        struct mca_bmi_base_endpoint_t* peer = peers[proc];
+        if(peer == NULL)
+            continue;
+
+        tmp_ptr=(volatile char **)
+            ( (char *)mca_bmi_sm_component.sm_ctl_header->
+              segment_header.base_shared_mem_segment +
+              (long)mca_bmi_sm_component.sm_mpool->mpool_base());
+        same_sm_base=(tmp_ptr[peer->peer_smp_rank] ==
+            tmp_ptr[mca_bmi_sm_component.my_smp_rank]);
+
+        if( SM_CONNECTED == mca_bmi_sm_component.sm_proc_connect[proc] ) {
+            if( same_sm_base ){
+
+                /* don't count if same process */
+                if( (mca_bmi_sm_component.num_smp_procs+cnt ) ==
+                        mca_bmi_sm_component.my_smp_rank) {
+                    cnt++;
+                    continue;
+                }
+                /* set up the list of local processes with the same base
+                 * shared memory virtual address as this process */
+                mca_bmi_sm_component.list_smp_procs_same_base_addr
+                    [mca_bmi_sm_component.num_smp_procs_same_base_addr]=
+                    cnt;
+                mca_bmi_sm_component.num_smp_procs_same_base_addr++;
+                cnt++;
+                /* add this proc to shared memory accessability list */
+                return_code=ompi_bitmap_set_bit(reachability,proc);
+                if( OMPI_SUCCESS != return_code ){
+                    goto CLEANUP;
+                }
+            } else {
+                /* set up the list of local processes with the same base
+                 * shared memory virtual address as this process */
+                mca_bmi_sm_component.list_smp_procs_different_base_addr
+                    [mca_bmi_sm_component.num_smp_procs_different_base_addr]=
+                    cnt;
+                mca_bmi_sm_component.num_smp_procs_different_base_addr++;
+                cnt++;
+                mca_bmi_sm_component.sm_proc_connect[proc]=
+                    SM_CONNECTED_DIFFERENT_BASE_ADDR;
+            }
+        }
+    }
+
+    /* update the local smp process count */
+    mca_bmi_sm_component.num_smp_procs+=n_local_procs;
+
+CLEANUP:
+    /* free local memory */
+    if(sm_proc_info){
+       /* free the memory allocated by mca_base_modex_recv */
+        for( proc=0 ; proc < nprocs; proc++ ) {
+            if(sm_proc_info[proc]){
+                free(sm_proc_info[proc]);
+                sm_proc_info[proc]=NULL;
+            }
+        }
+        free(sm_proc_info);
+        sm_proc_info=NULL;
+    }
+
+    return return_code;
+}
+
+/* Note:: this routine assumes that mca_bmi_sm_add_procs_same_base_addr
+ *  has already been called to set up data structures needed by this
+ *  routine */
+int mca_bmi_sm_add_procs(
+    struct mca_bmi_base_module_t* bmi, 
+    size_t nprocs, 
+    struct ompi_proc_t **procs, 
+    struct mca_bmi_base_endpoint_t **peers,
+    ompi_bitmap_t* reachability)
+{
+    int return_code = OMPI_SUCCESS, tmp_cnt;
+    uint32_t proc, n_local_procs;
+
+    /* initializion */
+    for(proc=0 ; proc < nprocs ; proc++ ) {
+        peers[proc]=NULL;
+    }
+
+    /* figure out total number of local procs in current set */
+    tmp_cnt=0;
+    for(proc = 0 ; proc < nprocs ; proc++ ) {
+        if( (SM_CONNECTED_DIFFERENT_BASE_ADDR ==
+                    mca_bmi_sm_component.sm_proc_connect[proc]) ||
+                (SM_CONNECTED ==
+                    mca_bmi_sm_component.sm_proc_connect[proc]) ) {
+            tmp_cnt++;
+        }
+    }
+    /* set connectivity */
+    n_local_procs=0;
+    for(proc = 0 ; proc < nprocs ; proc++ ) {
+        if( (SM_CONNECTED_DIFFERENT_BASE_ADDR ==
+                    mca_bmi_sm_component.sm_proc_connect[proc]) ||
+                (SM_CONNECTED ==
+                    mca_bmi_sm_component.sm_proc_connect[proc]) ) {
+            n_local_procs++;
+        }
+
+        if( (SM_CONNECTED_DIFFERENT_BASE_ADDR ==
+                    mca_bmi_sm_component.sm_proc_connect[proc]) ) {
+
+            /* add this proc to shared memory accessability list */
+            return_code=ompi_bitmap_set_bit(reachability,proc);
+            if( OMPI_SUCCESS != return_code ){
+                goto CLEANUP;
+            }
+
+            /* initialize the peers information */
+            peers[proc]=malloc(sizeof(struct mca_bmi_base_endpoint_t));
+            if( NULL == peers[proc] ){
+                return_code=OMPI_ERR_OUT_OF_RESOURCE;
+                goto CLEANUP;
+            }
+            peers[proc]->my_smp_rank=mca_bmi_sm_component.my_smp_rank;
+            /* subtract tmp_cnt, since mca_bmi_sm_add_procs_same_base_addr
+             * already added these into num_smp_procs */
+            peers[proc]->peer_smp_rank=n_local_procs+
+                mca_bmi_sm_component.num_smp_procs-tmp_cnt;
+            n_local_procs++;
+        }
+    }
+
+CLEANUP:
+    /* free local memory */
+    if(mca_bmi_sm_component.sm_proc_connect){
+        free(mca_bmi_sm_component.sm_proc_connect);
+        mca_bmi_sm_component.sm_proc_connect=NULL;
+    }
+
+    return return_code;
+}
+
+int mca_bmi_sm_del_procs(
+    struct mca_bmi_base_module_t* bmi, 
+    size_t nprocs,
+    struct ompi_proc_t **procs, 
+    struct mca_bmi_base_endpoint_t **peers)
+{
+    return OMPI_SUCCESS;
+}
+
+
+/**
+ * MCA->BMI Clean up any resources held by BMI module
+ * before the module is unloaded.
+ *
+ * @param bmi (IN)   BMI module.
+ *
+ * Prior to unloading a BMI module, the MCA framework will call
+ * the BMI finalize method of the module. Any resources held by
+ * the BMI should be released and if required the memory corresponding
+ * to the BMI module freed.
+ *
+ */
+
+int mca_bmi_sm_finalize(struct mca_bmi_base_module_t* bmi)
+{
+    return OMPI_SUCCESS;
+}
+
+
+/**
+ * Register a callback function that is called on receipt
+ * of a fragment.
+ *
+ * @param bmi (IN)     BMI module
+ * @return             Status indicating if cleanup was successful
+ *
+ * When the process list changes, the PML notifies the BMI of the
+ * change, to provide the opportunity to cleanup or release any
+ * resources associated with the peer.
+ */
+
+int mca_bmi_sm_register(
+    struct mca_bmi_base_module_t* bmi,
+    mca_bmi_base_tag_t tag,
+    mca_bmi_base_module_recv_cb_fn_t cbfunc,
+    void* cbdata)
+{
+    mca_bmi_sm_t* sm_bmi = (mca_bmi_sm_t*)bmi;
+    sm_bmi->sm_reg[tag].cbfunc = cbfunc;
+    sm_bmi->sm_reg[tag].cbdata = cbdata;
+    return OMPI_SUCCESS;
+}
+                                                                                                                 
+
+/**
+ * Allocate a segment.
+ *
+ * @param bmi (IN)      BMI module
+ * @param size (IN)     Request segment size.
+ */
+extern mca_bmi_base_descriptor_t* mca_bmi_sm_alloc(
+    struct mca_bmi_base_module_t* bmi,
+    size_t size)
+{
+    mca_bmi_sm_frag_t* frag;
+    int rc;
+    if(size <= mca_bmi_sm_component.first_fragment_size) {
+        MCA_BMI_SM_FRAG_ALLOC1(frag,rc);
+    } else {
+        MCA_BMI_SM_FRAG_ALLOC2(frag,rc);
+    }
+    return (mca_bmi_base_descriptor_t*)frag;
+}
+                                                                                                                   
+/**
+ * Return a segment allocated by this BMI.
+ *
+ * @param bmi (IN)      BMI module
+ * @param segment (IN)  Allocated segment.
+ */
+extern int mca_bmi_sm_free(
+    struct mca_bmi_base_module_t* bmi,
+    mca_bmi_base_descriptor_t* des)
+{
+    mca_bmi_sm_frag_t* frag = (mca_bmi_sm_frag_t*)des;
+    if(frag->size <= mca_bmi_sm_component.first_fragment_size) {
+        MCA_BMI_SM_FRAG_RETURN1(des);
+    } else {
+        MCA_BMI_SM_FRAG_RETURN2(des);
+    }
+    return OMPI_SUCCESS;
+}
+
+
+/**
+ * Pack data
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+struct mca_bmi_base_descriptor_t* mca_bmi_sm_pack(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* peer,
+    struct ompi_convertor_t* convertor,
+    size_t reserve,
+    size_t* size)
+{
+    return NULL;
+}
+
+ 
+/**
+ * Initiate a send to the peer.
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+
+int mca_bmi_sm_send(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* endpoint,
+    struct mca_bmi_base_descriptor_t* descriptor,
+    mca_bmi_base_tag_t tag)
+{
+    mca_bmi_sm_frag_t* frag = (mca_bmi_sm_frag_t*)descriptor;
+    int rc;
+
+    frag->tag = tag;
+    frag->type = MCA_BMI_SM_FRAG_SEND;
+    frag->rc = OMPI_SUCCESS;
+
+    /* 
+     * post the descriptor in the queue - post with the relative
+     * address 
+     */
+    MCA_BMI_SM_FIFO_WRITE(endpoint->my_smp_rank,endpoint->peer_smp_rank, frag, rc);
+    return rc;
+}
+
+

src/mca/bmi/sm/bmi_sm.h

@@ -0,0 +1,355 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_BMI_SM_H
+#define MCA_BMI_SM_H
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include "class/ompi_free_list.h"
+#include "class/ompi_bitmap.h"
+#include "class/ompi_fifo.h"
+#include "event/event.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/mpool/mpool.h"
+#include "mca/common/sm/common_sm_mmap.h"
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+
+/*
+ * Shared Memory resource managment
+ */
+struct mca_bmi_sm_module_resource_t {
+    /* base control structures */
+    mca_common_sm_file_header_t segment_header;
+
+    /* fifo queues - offsets relative to the base of the share memory
+     * segment will be stored here */
+    volatile ompi_fifo_t **fifo;
+};
+typedef struct mca_bmi_sm_module_resource_t mca_bmi_sm_module_resource_t;
+extern mca_bmi_sm_module_resource_t mca_bmi_sm_module_resource;
+
+#define SM_CONNECTED 1
+#define SM_CONNECTED_SAME_BASE_ADDR  2
+#define SM_CONNECTED_DIFFERENT_BASE_ADDR  3
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+#define DATA (char)0
+#define DONE (char)1
+#endif
+
+struct mca_bmi_sm_registration_t {
+    mca_bmi_base_module_recv_cb_fn_t cbfunc;
+    void *cbdata;
+};
+typedef struct mca_bmi_sm_registration_t mca_bmi_sm_registration_t;
+
+
+/**
+ * Shared Memory (SM) BMI module.
+ */
+struct mca_bmi_sm_component_t {
+    mca_bmi_base_component_1_0_0_t super;  /**< base BMI component */
+    int sm_free_list_num;              /**< initial size of free lists */
+    int sm_free_list_max;              /**< maximum size of free lists */
+    int sm_free_list_inc;              /**< number of elements to alloc when growing free lists */
+    int sm_max_procs;                  /**< upper limit on the number of processes using the shared memory pool */
+    int sm_extra_procs;                /**< number of extra procs to allow */
+    char* sm_mpool_name;               /**< name of shared memory pool module */
+    mca_mpool_base_module_t* sm_mpool; /**< shared memory pool */
+    void* sm_mpool_base;               /**< base address of shared memory pool */
+    size_t first_fragment_size;        /**< first fragment size */
+    size_t max_fragment_size;          /**< maximum (second and
+                                             beyone) fragment size */
+    size_t fragment_alignment;         /**< fragment alignment */
+    ompi_mutex_t sm_lock;
+    char* sm_resouce_ctl_file;         /**< name of shared memory file used 
+                                            to coordinate resource usage */
+    mca_common_sm_mmap_t *mmap_file;   /**< description of mmap'ed file */
+    mca_bmi_sm_module_resource_t *sm_ctl_header;  /* control header in
+                                                     shared memory */
+    ompi_fifo_t **fifo;    /**< cached copy of the pointer to the 2D
+                             fifo array.  The address in the shared
+                             memory segment sm_ctl_header is a relative,
+                             but this one, in process private memory, is
+                             a real virtual address */
+    size_t size_of_cb_queue; /**< size of each circular buffer queue array */
+    size_t cb_lazy_free_freq; /**< frequency of lazy free */
+    ssize_t *sm_offset;        /**< offset to be applied to shared memory
+                              addresses, per local process value */
+    int *sm_proc_connect;    /* scratch array used by the 0'th bmi to
+                              * set indicate sm connectivty.  Used by
+                              * the 1'st bmi */
+    size_t num_smp_procs;      /**< current number of smp procs on this
+                              host */
+    int num_smp_procs_same_base_addr;  /* number of procs with same
+                                          base shared memory virtual
+                                          address as this process */
+    int num_smp_procs_different_base_addr;  /* number of procs with
+                                               different base shared memory
+                                               virtual address as this
+                                               process */
+    int *list_smp_procs_same_base_addr;  /* number of procs with same 
+                                            base shared memory virtual 
+                                            address as this process */
+    int *list_smp_procs_different_base_addr;  /* number of procs with different 
+                                            base shared memory virtual 
+                                            address as this process */
+    uint32_t my_smp_rank;    /**< My SMP process rank.  Used for accessing
+			      *   SMP specfic data structures. */
+    ompi_free_list_t sm_frags1;    /**< free list of sm first */
+    ompi_free_list_t sm_frags2;    /**< free list of sm second */
+    ompi_free_list_t sm_first_frags_to_progress;  /**< list of first
+                                                    fragments that are
+                                                    awaiting resources */
+    struct mca_bmi_base_endpoint_t **sm_peers;
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+    char sm_fifo_path[PATH_MAX];   /**< path to fifo used to signal this process */
+    int  sm_fifo_fd;               /**< file descriptor corresponding to opened fifo */
+    ompi_thread_t sm_fifo_thread;
+#endif
+};
+typedef struct mca_bmi_sm_component_t mca_bmi_sm_component_t;
+extern mca_bmi_sm_component_t mca_bmi_sm_component;
+
+/**
+ * Register shared memory module parameters with the MCA framework
+ */
+extern int mca_bmi_sm_component_open(void);
+
+/**
+ * Any final cleanup before being unloaded.
+ */
+extern int mca_bmi_sm_component_close(void);
+
+/**
+ * SM module initialization.
+ * 
+ * @param num_bmis (OUT)                  Number of BMIs returned in BMI array.
+ * @param enable_progress_threads (IN)    Flag indicating whether BMI is allowed to have progress threads
+ * @param enable_mpi_threads (IN)         Flag indicating whether BMI must support multilple simultaneous invocations from different threads
+ *
+ */
+extern mca_bmi_base_module_t** mca_bmi_sm_component_init(
+    int *num_bmis, 
+    bool enable_progress_threads,
+    bool enable_mpi_threads
+);
+
+/**
+ * shared memory component progress.
+ */
+extern int mca_bmi_sm_component_progress(void);
+
+/**
+ * SM BMI Interface
+ */
+struct mca_bmi_sm_t {
+    mca_bmi_base_module_t  super;       /**< base BMI interface */
+    bool bmi_inited;  /**< flag indicating if bmi has been inited */
+    mca_bmi_sm_registration_t sm_reg[256];
+};
+typedef struct mca_bmi_sm_t mca_bmi_sm_t;
+
+extern mca_bmi_sm_t mca_bmi_sm[2];
+
+
+/**
+ * Cleanup any resources held by the BMI.
+ * 
+ * @param bmi  BMI instance.
+ * @return     OMPI_SUCCESS or error status on failure.
+ */
+
+extern int mca_bmi_sm_finalize(
+    struct mca_bmi_base_module_t* bmi
+);
+
+
+/**
+ * PML->BMI notification of change in the process list.
+ * PML->BMI Notification that a receive fragment has been matched.
+ * Called for message that is send from process with the virtual
+ * address of the shared memory segment being different than that of
+ * the receiver.
+ * 
+ * @param bmi (IN)
+ * @param proc (IN)  
+ * @param peer (OUT)
+ * @return     OMPI_SUCCESS or error status on failure.
+ * 
+ */
+
+extern int mca_bmi_sm_add_procs(
+    struct mca_bmi_base_module_t* bmi,
+    size_t nprocs,
+    struct ompi_proc_t **procs,
+    struct mca_bmi_base_endpoint_t** peers,
+    struct ompi_bitmap_t* reachability
+);
+
+                                                                                                               
+/**
+ * PML->BMI notification of change in the process list.
+ * PML->BMI Notification that a receive fragment has been matched.
+ * Called for message that is send from process with the virtual
+ * address of the shared memory segment being the same as that of
+ * the receiver.
+ * 
+ * @param bmi (IN)
+ * @param proc (IN)  
+ * @param peer (OUT)
+ * @return     OMPI_SUCCESS or error status on failure.
+ * 
+ */
+
+extern int mca_bmi_sm_add_procs_same_base_addr(
+    struct mca_bmi_base_module_t* bmi,
+    size_t nprocs,
+    struct ompi_proc_t **procs,
+    struct mca_bmi_base_endpoint_t** peers,
+    ompi_bitmap_t* reachability
+);
+
+                                                                                                               
+/**
+ * PML->BMI notification of change in the process list.
+ *
+ * @param bmi (IN)     BMI instance
+ * @param proc (IN)    Peer process
+ * @param peer (IN)    Peer addressing information.
+ * @return             Status indicating if cleanup was successful
+ *
+ */
+extern int mca_bmi_sm_del_procs(
+    struct mca_bmi_base_module_t* bmi,
+    size_t nprocs,
+    struct ompi_proc_t **procs,
+    struct mca_bmi_base_endpoint_t **peers
+);
+
+
+/**
+ * Register a callback function that is called on receipt
+ * of a fragment.
+ *
+ * @param bmi (IN)     BMI module
+ * @return             Status indicating if cleanup was successful
+ *
+ * When the process list changes, the PML notifies the BMI of the
+ * change, to provide the opportunity to cleanup or release any
+ * resources associated with the peer.
+ */
+
+extern int mca_bmi_sm_register(
+    struct mca_bmi_base_module_t* bmi,
+    mca_bmi_base_tag_t tag,
+    mca_bmi_base_module_recv_cb_fn_t cbfunc,
+    void* cbdata
+);
+                                                                                                                   
+
+/**
+ * Allocate a segment.
+ *
+ * @param bmi (IN)      BMI module
+ * @param size (IN)     Request segment size.
+ */
+extern mca_bmi_base_descriptor_t* mca_bmi_sm_alloc(
+    struct mca_bmi_base_module_t* bmi,
+    size_t size
+);
+
+/**
+ * Return a segment allocated by this BMI.
+ *
+ * @param bmi (IN)      BMI module
+ * @param segment (IN)  Allocated segment.
+ */
+extern int mca_bmi_sm_free(
+    struct mca_bmi_base_module_t* bmi,
+    mca_bmi_base_descriptor_t* segment
+);
+                                                                                                                   
+/**
+ * Pack data
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+struct mca_bmi_base_descriptor_t* mca_bmi_sm_pack(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* peer,
+    struct ompi_convertor_t* convertor,
+    size_t reserve,
+    size_t* size
+);
+                                                                                                            
+/**
+ * Initiate a send to the peer.
+ *
+ * @param bmi (IN)      BMI module
+ * @param peer (IN)     BMI peer addressing
+ */
+extern int mca_bmi_sm_send(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* endpoint,
+    struct mca_bmi_base_descriptor_t* descriptor,
+    mca_bmi_base_tag_t tag
+);
+
+/**
+ * Data structure used to hold information that will be exchanged with
+ * all other procs at startup.  !!!!! This is only temporary, until the
+ * registry is complete
+ */
+#define MCA_BMI_SM_MAX_HOSTNAME_LEN  128
+typedef struct mca_bmi_sm_exchange{
+    char host_name[MCA_BMI_SM_MAX_HOSTNAME_LEN];
+}mca_bmi_sm_exchange_t;
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+void mca_bmi_sm_component_event_thread(ompi_object_t*);
+#endif
+                                                                                                              
+#if OMPI_ENABLE_PROGRESS_THREADS == 1 
+#define MCA_BMI_SM_SIGNAL_PEER(peer) \
+{ \
+    unsigned char cmd = DATA; \
+    if(write(peer->fifo_fd, &cmd, sizeof(cmd)) != sizeof(cmd)) { \
+        ompi_output(0, "mca_bmi_sm_send: write fifo failed: errno=%d\n", errno); \
+    } \
+}
+#else
+#define MCA_BMI_SM_SIGNAL_PEER(peer)
+#endif
+
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif
+

src/mca/bmi/sm/bmi_sm_component.c

@@ -0,0 +1,491 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+#include "ompi_config.h"
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>  /* for mkfifo */
+
+#include "include/constants.h"
+#include "include/sys/cache.h"
+#include "event/event.h"
+#include "util/if.h"
+#include "util/argv.h"
+#include "util/output.h"
+#include "util/sys_info.h"
+#include "util/proc_info.h"
+#include "mca/pml/pml.h"
+#include "mca/base/mca_base_param.h"
+#include "mca/base/mca_base_module_exchange.h"
+#include "mca/mpool/base/base.h"
+#include "mca/common/sm/common_sm_mmap.h"
+#include "bmi_sm.h"
+#include "bmi_sm_frag.h"
+#include "bmi_sm_fifo.h"
+
+
+/*
+ * Local utility functions.
+ */
+
+static int mca_bmi_sm_component_exchange(void);
+
+/*
+ * Shared Memory (SM) component instance. 
+ */
+
+mca_bmi_sm_component_t mca_bmi_sm_component = {
+    {  /* super is being filled in */
+        /* First, the mca_base_component_t struct containing meta information
+          about the component itself */
+        {
+            /* Indicate that we are a pml v1.0.0 component (which also implies a
+               specific MCA version) */
+            MCA_BMI_BASE_VERSION_1_0_0,
+            "sm", /* MCA component name */
+            1,  /* MCA component major version */
+            0,  /* MCA component minor version */
+            0,  /* MCA component release version */
+            mca_bmi_sm_component_open,  /* component open */
+            mca_bmi_sm_component_close  /* component close */
+        },
+
+        /* Next the MCA v1.0.0 component meta data */
+        {
+            /* Whether the component is checkpointable or not */
+            false
+        },
+
+        mca_bmi_sm_component_init,  
+        mca_bmi_sm_component_progress,
+    }  /* end super */
+};
+
+
+/*
+ * utility routines for parameter registration
+ */
+
+static inline char* mca_bmi_sm_param_register_string(
+    const char* param_name, 
+    const char* default_value)
+{
+    char *param_value;
+    int id = mca_base_param_register_string("ptl","sm",param_name,NULL,default_value);
+    mca_base_param_lookup_string(id, &param_value);
+    return param_value;
+}
+                                                                                                                            
+static inline int mca_bmi_sm_param_register_int(
+    const char* param_name, 
+    int default_value)
+{
+    int id = mca_base_param_register_int("ptl","sm",param_name,NULL,default_value);
+    int param_value = default_value;
+    mca_base_param_lookup_int(id,&param_value);
+    return param_value;
+}
+
+
+/*
+ *  Called by MCA framework to open the component, registers
+ *  component parameters.
+ */
+
+int mca_bmi_sm_component_open(void)
+{
+    /* register SM component parameters */
+    mca_bmi_sm_component.sm_free_list_num =
+        mca_bmi_sm_param_register_int("free_list_num", 256);
+    mca_bmi_sm_component.sm_free_list_max =
+        mca_bmi_sm_param_register_int("free_list_max", -1);
+    mca_bmi_sm_component.sm_free_list_inc =
+        mca_bmi_sm_param_register_int("free_list_inc", 256);
+    mca_bmi_sm_component.sm_max_procs =
+        mca_bmi_sm_param_register_int("max_procs", -1);
+    mca_bmi_sm_component.sm_extra_procs =
+        mca_bmi_sm_param_register_int("sm_extra_procs", -1);
+    mca_bmi_sm_component.sm_mpool_name =
+        mca_bmi_sm_param_register_string("mpool", "sm");
+    mca_bmi_sm_component.first_fragment_size =
+        mca_bmi_sm_param_register_int("first_fragment_size", 1024);
+    mca_bmi_sm_component.max_fragment_size =
+        mca_bmi_sm_param_register_int("max_fragment_size", 8*1024);
+    mca_bmi_sm_component.fragment_alignment =
+        mca_bmi_sm_param_register_int("fragment_alignment",
+                CACHE_LINE_SIZE);
+    mca_bmi_sm_component.size_of_cb_queue =
+        mca_bmi_sm_param_register_int("size_of_cb_queue", 128);
+    mca_bmi_sm_component.cb_lazy_free_freq =
+        mca_bmi_sm_param_register_int("cb_lazy_free_freq", 120);
+    /* make sure that queue size and lazy free frequency are consistent -
+     * want to make sure that slots are freed at a rate they can be
+     * reused, w/o allocating extra new circular buffer fifo arrays */
+    if( (float)(mca_bmi_sm_component.cb_lazy_free_freq) >=
+            0.95*(float)(mca_bmi_sm_component.size_of_cb_queue) ) {
+        /* upper limit */
+        mca_bmi_sm_component.cb_lazy_free_freq=
+            (int)(0.95*(float)(mca_bmi_sm_component.size_of_cb_queue));
+        /* lower limit */
+        if( 0>= mca_bmi_sm_component.cb_lazy_free_freq ) {
+            mca_bmi_sm_component.cb_lazy_free_freq=1;
+        }
+    }
+
+    /* default number of extra procs to allow for future growth */
+    mca_bmi_sm_component.sm_extra_procs =
+        mca_bmi_sm_param_register_int("sm_extra_procs", 2);
+
+    /* initialize objects */
+    OBJ_CONSTRUCT(&mca_bmi_sm_component.sm_lock, ompi_mutex_t);
+    OBJ_CONSTRUCT(&mca_bmi_sm_component.sm_frags1, ompi_free_list_t);
+    OBJ_CONSTRUCT(&mca_bmi_sm_component.sm_frags2, ompi_free_list_t);
+    return OMPI_SUCCESS;
+}
+
+
+/*
+ * component cleanup - sanity checking of queue lengths
+ */
+
+int mca_bmi_sm_component_close(void)
+{
+    int return_value=OMPI_SUCCESS;
+
+    OBJ_DESTRUCT(&mca_bmi_sm_component.sm_lock);
+    OBJ_DESTRUCT(&mca_bmi_sm_component.sm_frags1);
+    OBJ_DESTRUCT(&mca_bmi_sm_component.sm_frags2);
+
+    /* unmap the shared memory control structure */
+    if(mca_bmi_sm_component.mmap_file != NULL) {
+        return_value=munmap(mca_bmi_sm_component.mmap_file->map_addr,
+                mca_bmi_sm_component.mmap_file->map_size);
+        if(-1 == return_value) {
+            return_value=OMPI_ERROR;
+            ompi_output(0," munmap failed :: file - %s :: errno - %d \n",
+                    mca_bmi_sm_component.mmap_file->map_addr,
+                    errno);
+            goto CLEANUP;
+        }
+    
+        /* unlink file, so that it will be deleted when all references
+         * to it are gone - no error checking, since we want all procs
+         * to call this, so that in an abnormal termination scanario,
+         * this file will still get cleaned up */
+        unlink(mca_bmi_sm_component.mmap_file->map_path);
+    }
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+    /* close/cleanup fifo create for event notification */
+    if(mca_bmi_sm_component.sm_fifo_fd > 0) {
+        /* write a done message down the pipe */
+        unsigned char cmd = DONE;
+        if( write(mca_bmi_sm_component.sm_fifo_fd,&cmd,sizeof(cmd)) != 
+                sizeof(cmd)){
+            ompi_output(0, "mca_bmi_sm_component_close: write fifo failed: errno=%d\n",
+                    errno);
+        }
+        ompi_thread_join(&mca_bmi_sm_component.sm_fifo_thread, NULL);
+        close(mca_bmi_sm_component.sm_fifo_fd);
+        unlink(mca_bmi_sm_component.sm_fifo_path);
+    }
+#endif
+
+
+CLEANUP:
+
+    /* return */
+    return return_value;
+}
+
+
+/*
+ *  SM component initialization
+ */
+mca_bmi_base_module_t** mca_bmi_sm_component_init(
+    int *num_ptls, 
+    bool enable_progress_threads,
+    bool enable_mpi_threads)
+{
+    mca_bmi_base_module_t **ptls = NULL;
+    int i;
+
+    *num_ptls = 0;
+
+    /* lookup/create shared memory pool only when used */
+    mca_bmi_sm_component.sm_mpool = NULL;
+    mca_bmi_sm_component.sm_mpool_base = NULL;
+
+    /* publish shared memory parameters with the MCA framework */
+    if (OMPI_SUCCESS != mca_bmi_sm_component_exchange()) {
+        return NULL;
+    }
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+    /* create a named pipe to receive events  */
+    sprintf(mca_bmi_sm_component.sm_fifo_path, 
+        "%s/sm_fifo.%d", orte_process_info.job_session_dir,
+         orte_process_info.my_name->vpid);
+    if(mkfifo(mca_bmi_sm_component.sm_fifo_path, 0660) < 0) {
+        ompi_output(0, "mca_bmi_sm_component_init: mkfifo failed with errno=%d\n",errno);
+        return NULL;
+    }
+    mca_bmi_sm_component.sm_fifo_fd = open(mca_bmi_sm_component.sm_fifo_path, O_RDWR);
+    if(mca_bmi_sm_component.sm_fifo_fd < 0) {
+        ompi_output(0, "mca_bmi_sm_component_init: open(%s) failed with errno=%d\n",
+            mca_bmi_sm_component.sm_fifo_path, errno);
+        return NULL;
+    }
+
+    OBJ_CONSTRUCT(&mca_bmi_sm_component.sm_fifo_thread, ompi_thread_t);
+    mca_bmi_sm_component.sm_fifo_thread.t_run = (ompi_thread_fn_t) mca_bmi_sm_component_event_thread;
+    ompi_thread_start(&mca_bmi_sm_component.sm_fifo_thread);
+#endif
+
+    /* allocate the Shared Memory PTL */
+    *num_ptls = 2;
+    ptls = malloc((*num_ptls)*sizeof(mca_bmi_base_module_t*));
+    if (NULL == ptls) {
+        return NULL;
+    }
+
+    /* get pointer to the ptls */
+    ptls[0] = (mca_bmi_base_module_t *)(&(mca_bmi_sm[0]));
+    ptls[1] = (mca_bmi_base_module_t *)(&(mca_bmi_sm[1]));
+
+    /* set scheduling parameters */
+    for( i=0 ; i < 2 ; i++ ) {
+        mca_bmi_sm[i].super.bmi_first_frag_size=mca_bmi_sm_component.first_fragment_size;
+        mca_bmi_sm[i].super.bmi_min_frag_size=mca_bmi_sm_component.max_fragment_size;
+        mca_bmi_sm[i].super.bmi_max_frag_size=mca_bmi_sm_component.max_fragment_size;
+        mca_bmi_sm[i].super.bmi_exclusivity=100;  /* always use this ptl */
+        mca_bmi_sm[i].super.bmi_latency=100;      /* lowest latency */
+        mca_bmi_sm[i].super.bmi_bandwidth=900; /* not really used now since exclusivity is set to 100 */
+    }
+
+    /* initialize some PTL data */
+    /* start with no SM procs */
+    mca_bmi_sm_component.num_smp_procs = 0;
+    mca_bmi_sm_component.my_smp_rank   = 0xFFFFFFFF;  /* not defined */
+
+    /* set flag indicating ptl not inited */
+    mca_bmi_sm[0].bmi_inited=false;
+    mca_bmi_sm[1].bmi_inited=false;
+
+    return ptls;
+}
+
+
+/*
+ *  SM component progress.
+ */
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+void mca_bmi_sm_component_event_thread(ompi_object_t* thread)
+{
+    while(1) {
+        unsigned char cmd;
+        if(read(mca_bmi_sm_component.sm_fifo_fd, &cmd, sizeof(cmd)) != sizeof(cmd)) {
+            /* error condition */
+            return;
+        }
+        if( DONE == cmd ){
+            /* return when done message received */
+            return;
+        } 
+        mca_bmi_sm_component_progress(0);
+    }
+}
+#endif
+
+
+int mca_bmi_sm_component_progress(void)
+{
+    /* local variables */
+    unsigned int peer_smp_rank ;
+    mca_bmi_sm_frag_t *frag;
+    ompi_fifo_t *fifo = NULL;
+    int my_smp_rank=mca_bmi_sm_component.my_smp_rank;
+    int proc;
+    int rc = 0;
+
+    /* send progress is made by the PML */
+
+    /* 
+     * receive progress 
+     */
+
+    /* poll each fifo */
+
+    /* loop over fifo's - procs with same base shared memory 
+     * virtual address as this process */
+    for( proc=0 ; proc < mca_bmi_sm_component.num_smp_procs_same_base_addr
+            ; proc++ ) 
+    {
+        peer_smp_rank= mca_bmi_sm_component.list_smp_procs_same_base_addr[proc];
+        fifo=&(mca_bmi_sm_component.fifo[peer_smp_rank][my_smp_rank]);
+
+        /* if fifo is not yet setup - continue - not data has been sent*/
+        if(OMPI_CB_FREE == fifo->tail){
+            continue;
+        }
+
+        /* aquire thread lock */
+        if( ompi_using_threads() ) {
+            ompi_atomic_lock( &(fifo->tail_lock) );
+        }
+
+        /* get pointer - pass in offset to change queue pointer
+         * addressing from that of the sender */
+        frag = (mca_bmi_sm_frag_t *)
+	    ompi_fifo_read_from_tail_same_base_addr( fifo );
+        if( OMPI_CB_FREE == frag ) {
+            /* release thread lock */
+            if( ompi_using_threads() ) {
+                ompi_atomic_unlock(&(fifo->tail_lock));
+            }
+            continue;
+        }
+
+        /* release thread lock */
+        if( ompi_using_threads() ) {
+            ompi_atomic_unlock(&(fifo->tail_lock));
+        }
+
+        /* dispatch fragment by type */
+        switch(frag->type) {
+            case MCA_BMI_SM_FRAG_ACK:
+            {
+                /* completion callback */
+                frag->base.des_cbfunc(&mca_bmi_sm[0].super, frag->endpoint, &frag->base, frag->rc);
+                break;
+            }
+            case MCA_BMI_SM_FRAG_SEND:
+            {
+                /* recv upcall */
+                mca_bmi_sm_registration_t* reg = mca_bmi_sm[0].sm_reg + frag->tag;
+                reg->cbfunc(&mca_bmi_sm[0].super,frag->tag,&frag->base,reg->cbdata);
+                frag->type = MCA_BMI_SM_FRAG_ACK;
+                MCA_BMI_SM_FIFO_WRITE(my_smp_rank,peer_smp_rank,frag,rc);
+                if(OMPI_SUCCESS != rc)
+                    return rc;
+                break;
+            }
+            default:
+            {
+                /* unknown */
+                frag->rc = OMPI_ERROR;
+                frag->type = MCA_BMI_SM_FRAG_ACK;
+                MCA_BMI_SM_FIFO_WRITE(my_smp_rank,peer_smp_rank,frag,rc);
+                if(OMPI_SUCCESS != rc)
+                    return rc;
+                break;
+            }
+        }
+        rc++;
+    }  /* end peer_local_smp_rank loop */
+
+#if 0
+    /* loop over fifo's - procs with different base shared memory 
+     * virtual address as this process */
+    for( proc=0 ; proc < mca_bmi_sm_component.num_smp_procs_different_base_addr
+            ; proc++ ) 
+    {
+        peer_smp_rank= mca_bmi_sm_component.list_smp_procs_different_base_addr[proc];
+        fifo=&(mca_bmi_sm_component.fifo[peer_smp_rank][my_smp_rank]);
+
+        /* if fifo is not yet setup - continue - not data has been sent*/
+        if(OMPI_CB_FREE == fifo->tail){
+            continue;
+        }
+
+        /* aquire thread lock */
+        if( ompi_using_threads() ) {
+            ompi_atomic_lock(&(fifo->tail_lock));
+        }
+
+        /* get pointer - pass in offset to change queue pointer
+         * addressing from that of the sender */
+        frag=(mca_bmi_sm_frag_t *)ompi_fifo_read_from_tail( fifo,
+                mca_bmi_sm_component.sm_offset[peer_smp_rank]);
+        if( OMPI_CB_FREE == frag ) {
+            /* release thread lock */
+            if( ompi_using_threads() ) {
+                ompi_atomic_unlock(&(fifo->tail_lock));
+            }
+            continue;
+        }
+
+        /* release thread lock */
+        if( ompi_using_threads() ) {
+            ompi_atomic_unlock(&(fifo->tail_lock));
+        }
+
+        /* change the address from address relative to the shared
+         * memory address, to a true virtual address */
+        frag = (mca_bmi_sm_frag_t *)( (char *)frag+
+                mca_bmi_sm_component.sm_offset[peer_smp_rank]);
+
+        rc++;
+    }  /* end peer_local_smp_rank loop */
+#endif
+    return rc;
+}
+
+
+/*
+ *
+ */
+
+static int mca_bmi_sm_component_exchange()
+{
+    mca_bmi_sm_exchange_t mca_bmi_sm_setup_info;
+    size_t len,size;
+    char *ptr;
+    int rc;
+
+    /* determine length of host name */
+    len=strlen(orte_system_info.nodename);
+    /* check if string is zero length or there is an error */
+    if( 0 >= len) {
+        return OMPI_ERROR;
+    }
+    /* check if string is too long */
+    if( MCA_BMI_SM_MAX_HOSTNAME_LEN < (len+1) ){
+        return OMPI_ERROR;
+    }
+
+    /* copy string into structure that will be used to send data around */
+    ptr=NULL;
+    ptr=strncpy(&(mca_bmi_sm_setup_info.host_name[0]),
+            orte_system_info.nodename, len);
+    if( NULL == ptr ) {
+        return OMPI_ERROR;
+    }
+    mca_bmi_sm_setup_info.host_name[len]='\0';
+
+
+    /* exchange setup information */
+    size=sizeof(mca_bmi_sm_exchange_t);
+    rc =  mca_base_modex_send(&mca_bmi_sm_component.super.bmi_version, 
+            &mca_bmi_sm_setup_info, size);
+    
+    return OMPI_SUCCESS;
+}
+

src/mca/bmi/sm/bmi_sm_endpoint.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_BMI_SM_ENDPOINT_H
+#define MCA_BMI_SM_ENDPOINT_H
+
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+#include "event/event.h"
+#endif
+
+/**
+ *  An abstraction that represents a connection to a endpoint process.
+ *  An instance of mca_ptl_base_endpoint_t is associated w/ each process 
+ *  and BMI pair at startup.
+ */
+
+struct mca_bmi_base_endpoint_t {
+    int my_smp_rank;    /**< My SMP process rank.  Used for accessing
+                         *   SMP specfic data structures. */
+    int peer_smp_rank;  /**< My peer's SMP process rank.  Used for accessing
+                         *   SMP specfic data structures. */
+#if OMPI_ENABLE_PROGRESS_THREADS == 1
+    int fifo_fd;        /**< pipe/fifo used to signal endpoint that data is queued */
+#endif
+};
+
+#endif
+

src/mca/bmi/sm/bmi_sm_fifo.h

@@ -0,0 +1,45 @@
+#ifndef MCA_BMI_SM_FIFO_H
+#define MCA_BMI_SM_FIFO_H
+
+#include "bmi_sm.h"
+
+
+
+#define MCA_BMI_SM_FIFO_WRITE(my_smp_rank,peer_smp_rank,frag,rc) \
+do { \
+    ompi_fifo_t* fifo; \
+    fifo=&(mca_bmi_sm_component.fifo[my_smp_rank][peer_smp_rank]); \
+ \
+    /* thread lock */ \
+    if(ompi_using_threads()) \
+        ompi_atomic_lock(&fifo->head_lock); \
+    if(OMPI_CB_FREE == fifo->head) { \
+        /* no queues have been allocated - allocate now */ \
+        rc=ompi_fifo_init_same_base_addr( \
+            mca_bmi_sm_component.size_of_cb_queue, \
+            mca_bmi_sm_component.cb_lazy_free_freq, \
+            /* at this stage we are not doing anything with memory \
+            * locality */ \
+            0,0,0, \
+            fifo, mca_bmi_sm_component.sm_mpool); \
+        if( rc != OMPI_SUCCESS ) { \
+            if(ompi_using_threads()) \
+                ompi_atomic_unlock(&(fifo->head_lock)); \
+            break; \
+        } \
+    } \
+    \
+    /* post fragment */ \
+    rc=ompi_fifo_write_to_head_same_base_addr(frag, fifo, \
+        mca_bmi_sm_component.sm_mpool); \
+    if(  0 <= rc ) { \
+        MCA_BMI_SM_SIGNAL_PEER(bmi_peer); \
+        rc=OMPI_SUCCESS; \
+    } \
+    if(ompi_using_threads()) \
+        ompi_atomic_unlock(&fifo->head_lock); \
+} while(0) 
+
+
+#endif
+

src/mca/bmi/sm/bmi_sm_frag.c

@@ -0,0 +1,49 @@
+#include "bmi_sm_frag.h"
+
+
+static inline void mca_bmi_sm_frag_constructor(mca_bmi_sm_frag_t* frag)
+{
+    frag->segment.seg_addr.pval = frag+1;
+    frag->segment.seg_len = frag->size;
+    frag->base.des_src = &frag->segment;
+    frag->base.des_src_cnt = 1;
+    frag->base.des_dst = NULL;
+    frag->base.des_dst_cnt = 0;
+    frag->base.des_flags = 0;
+}
+
+static void mca_bmi_sm_frag1_constructor(mca_bmi_sm_frag_t* frag)
+{
+    frag->size = mca_bmi_sm_component.first_fragment_size;
+    mca_bmi_sm_frag_constructor(frag);
+}
+
+static void mca_bmi_sm_frag2_constructor(mca_bmi_sm_frag_t* frag)
+{
+    frag->size = mca_bmi_sm_component.max_fragment_size;
+    mca_bmi_sm_frag_constructor(frag);
+}
+
+static void mca_bmi_sm_frag_destructor(mca_bmi_sm_frag_t* frag)
+{
+}
+
+
+OBJ_CLASS_INSTANCE(
+    mca_bmi_sm_frag_t,
+    mca_bmi_base_descriptor_t,
+    mca_bmi_sm_frag_constructor,
+    mca_bmi_sm_frag_destructor);
+
+OBJ_CLASS_INSTANCE(
+    mca_bmi_sm_frag1_t,
+    mca_bmi_base_descriptor_t,
+    mca_bmi_sm_frag1_constructor,
+    mca_bmi_sm_frag_destructor);
+
+OBJ_CLASS_INSTANCE(
+    mca_bmi_sm_frag2_t,
+    mca_bmi_base_descriptor_t,
+    mca_bmi_sm_frag2_constructor,
+    mca_bmi_sm_frag_destructor);
+

src/mca/bmi/sm/bmi_sm_frag.h

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_BMI_SM_SEND_FRAG_H
+#define MCA_BMI_SM_SEND_FRAG_H
+
+#include <sys/types.h>
+#include "ompi_config.h"
+#include "class/ompi_free_list.h"
+#include "bmi_sm.h"
+
+
+typedef enum {
+    MCA_BMI_SM_FRAG_SEND,
+    MCA_BMI_SM_FRAG_PUT,
+    MCA_BMI_SM_FRAG_GET,
+    MCA_BMI_SM_FRAG_ACK
+} mca_bmi_sm_frag_type_t;
+
+
+/**
+ * shared memory send fragment derived type.
+ */
+struct mca_bmi_sm_frag_t {
+    mca_bmi_base_descriptor_t base;
+    mca_bmi_base_segment_t segment;
+    struct mca_bmi_base_endpoint_t *endpoint;
+    mca_bmi_sm_frag_type_t type;
+    mca_bmi_base_tag_t tag;
+    size_t size;
+    int rc;
+};
+typedef struct mca_bmi_sm_frag_t mca_bmi_sm_frag_t;
+typedef struct mca_bmi_sm_frag_t mca_bmi_sm_frag1_t;
+typedef struct mca_bmi_sm_frag_t mca_bmi_sm_frag2_t;
+
+OBJ_CLASS_DECLARATION(mca_bmi_sm_frag_t);
+OBJ_CLASS_DECLARATION(mca_bmi_sm_frag1_t);
+OBJ_CLASS_DECLARATION(mca_bmi_sm_frag2_t);
+
+
+#define MCA_BMI_SM_FRAG_ALLOC1(frag, rc)                                 \
+{                                                                        \
+    ompi_list_item_t* item;                                              \
+    OMPI_FREE_LIST_WAIT(&mca_bmi_sm_component.sm_frags1, item, rc);      \
+    frag = (mca_bmi_sm_frag_t*)item;                                     \
+}
+
+#define MCA_BMI_SM_FRAG_ALLOC2(frag, rc)                                 \
+{                                                                        \
+    ompi_list_item_t* item;                                              \
+    OMPI_FREE_LIST_WAIT(&mca_bmi_sm_component.sm_frags2, item, rc);      \
+    frag = (mca_bmi_sm_frag_t*)item;                                     \
+}
+
+#define MCA_BMI_SM_FRAG_RETURN1(frag)                                     \
+{                                                                         \
+    OMPI_FREE_LIST_RETURN(&mca_bmi_sm_component.sm_frags1, &frag->super); \
+}
+
+#define MCA_BMI_SM_FRAG_RETURN2(frag)                                     \
+{                                                                         \
+    OMPI_FREE_LIST_RETURN(&mca_bmi_sm_component.sm_frags2, &frag->super); \
+}
+
+#endif
+

src/mca/bmi/sm/configure.params

@@ -0,0 +1,22 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# Specific to this module
+
+PARAM_INIT_FILE=bmi_sm.c
+PARAM_CONFIG_HEADER_FILE="sm_config.h"
+PARAM_CONFIG_FILES="Makefile"

src/mca/pls/fork/pls_fork_module.c

@@ -146,10 +146,23 @@ static int orte_pls_fork_proc(
         char* uri;
         char **new_env, **environ_copy;
 
+#if 0
+        /* for gperf - setup a new directory for each executable */
+        char path[PATH_MAX];
+
         /* set working directory */
+        sprintf(path, "%s/%d", context->cwd, getpid());
+        if(mkdir(path,0777) != 0) {
+            ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
+        }
+        if(chdir(path) != 0) {
+            ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
+        }
+#else
         if(chdir(context->cwd) != 0) {
             ORTE_ERROR_LOG(ORTE_ERR_BAD_PARAM);
         }
+#endif
 
         /* setup base environment */
         environ_copy = ompi_argv_copy(environ);

src/mca/pml/base/pml_base_bsend.c

@@ -35,6 +35,7 @@ static size_t           mca_pml_bsend_size;       /* size of users buffer */
 static size_t           mca_pml_bsend_count;      /* number of outstanding requests */
 static size_t           mca_pml_bsend_pagesz;     /* mmap page size */
 static int              mca_pml_bsend_pagebits;   /* number of bits in pagesz */
+static int32_t          mca_pml_bsend_init = 0; 
 
 
 
@@ -62,10 +63,14 @@ static void* mca_pml_bsend_alloc_segment(size_t* size_inout)
  */
 int mca_pml_base_bsend_init(bool thread_safe)
 {
+    static int initialized;
     int id = mca_base_param_register_string("pml", "base", "bsend_allocator", NULL, "basic");
     char *name;
     size_t tmp;
 
+    if(OMPI_THREAD_ADD32(&mca_pml_bsend_init, 1) > 0)
+        return OMPI_SUCCESS;
+
     /* initialize static objects */
     OBJ_CONSTRUCT(&mca_pml_bsend_mutex, ompi_mutex_t);
     OBJ_CONSTRUCT(&mca_pml_bsend_condition, ompi_condition_t);
@@ -94,6 +99,9 @@ int mca_pml_base_bsend_init(bool thread_safe)
  */
 int mca_pml_base_bsend_fini()
 {
+    if(OMPI_THREAD_ADD32(&mca_pml_bsend_init,-1) > 0) 
+        return OMPI_SUCCESS;
+
     if(NULL != mca_pml_bsend_allocator)
         mca_pml_bsend_allocator->alc_finalize(mca_pml_bsend_allocator);
     mca_pml_bsend_allocator = NULL;

src/mca/pml/base/pml_base_open.c

@@ -45,7 +45,6 @@ int mca_pml_base_output = -1;
 OMPI_DECLSPEC mca_pml_base_module_t mca_pml = {
     NULL,                    /* pml_add_procs */
     NULL,                    /* pml_del_procs */
-    NULL,                    /* pml_add_ptls */
     NULL,                    /* pml_control */
     mca_pml_base_progress,   /* pml_progress */
     NULL,                    /* pml_add_comm */

src/mca/pml/base/pml_base_recvreq.h

@@ -23,7 +23,7 @@
 #if defined(c_plusplus) || defined(__cplusplus)
 extern "C" {
 #endif
-OMPI_DECLSPEC extern ompi_class_t mca_pml_base_recv_request_t_class;
+
 /**
  * Base type for receive requests.
  */
@@ -33,6 +33,7 @@ struct mca_pml_base_recv_request_t {
 };
 typedef struct mca_pml_base_recv_request_t mca_pml_base_recv_request_t;
 
+OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_pml_base_recv_request_t);
 
 /**
  * Initialize a receive request with call parameters.
@@ -81,10 +82,11 @@ typedef struct mca_pml_base_recv_request_t mca_pml_base_recv_request_t;
  *
  *  @param request (IN)     Receive request.
  */
-#define MCA_PML_BASE_RECV_REQUEST_RETURN( request )      \
-    do {                                                 \
-        OBJ_RELEASE( (request)->req_base.req_comm);      \
-        OBJ_RELEASE( (request)->req_base.req_datatype ); \
+#define MCA_PML_BASE_RECV_REQUEST_FINI( request )         \
+    do {                                                  \
+        OMPI_REQUEST_FINI(&(request)->req_base.req_ompi); \
+        OBJ_RELEASE( (request)->req_base.req_comm);       \
+        OBJ_RELEASE( (request)->req_base.req_datatype );  \
     } while (0)
 
 #if defined(c_plusplus) || defined(__cplusplus)

src/mca/pml/base/pml_base_request.h

@@ -22,7 +22,6 @@
 #include "class/ompi_free_list.h"
 #include "request/request.h"
 #include "communicator/communicator.h"
-#include "mca/ptl/ptl.h"
 
 #if defined(c_plusplus) || defined(__cplusplus)
 extern "C" {
@@ -52,7 +51,7 @@ struct mca_pml_base_request_t {
     int32_t req_tag;                      /**< user defined tag */
     ompi_communicator_t *req_comm;        /**< communicator pointer */
     ompi_proc_t* req_proc;                /**< peer process */
-    mca_ptl_sequence_t req_sequence;      /**< sequence number for MPI pt-2-pt ordering */
+    uint64_t req_sequence;                /**< sequence number for MPI pt-2-pt ordering */
     struct ompi_datatype_t *req_datatype; /**< pointer to data type */
     mca_pml_base_request_type_t req_type; /**< MPI request type - used for test */
     bool req_persistent;                  /**< flag indicating if the this is a persistent request */

src/mca/pml/base/pml_base_sendreq.h

@@ -73,46 +73,46 @@ typedef struct mca_pml_base_send_request_t mca_pml_base_send_request_t;
                                         mode,                             \
                                         persistent)                       \
    {                                                                      \
-      /* increment reference count on communicator */                     \
+      /* increment reference counts */                                    \
       OBJ_RETAIN(comm);                                                   \
       OBJ_RETAIN(datatype);                                               \
                                                                           \
       OMPI_REQUEST_INIT(&(request)->req_base.req_ompi);                   \
-      request->req_addr = addr;                                           \
-      request->req_count = count;                                         \
-      request->req_datatype = datatype;                                   \
-      request->req_send_mode = mode;                                      \
-      request->req_base.req_addr = addr;                                  \
-      request->req_base.req_count = count;                                \
-      request->req_base.req_datatype = datatype;                          \
-      request->req_base.req_peer = (int32_t)peer;                         \
-      request->req_base.req_tag = (int32_t)tag;                           \
-      request->req_base.req_comm = comm;                                  \
-      request->req_base.req_proc = ompi_comm_peer_lookup(comm,peer);      \
-      request->req_base.req_persistent = persistent;                      \
-      request->req_base.req_pml_complete = (persistent ? true : false);   \
-      request->req_base.req_free_called = false;                          \
-      request->req_base.req_ompi.req_status._cancelled = 0;               \
+      (request)->req_addr = addr;                                         \
+      (request)->req_count = count;                                       \
+      (request)->req_datatype = datatype;                                 \
+      (request)->req_send_mode = mode;                                    \
+      (request)->req_base.req_addr = addr;                                \
+      (request)->req_base.req_count = count;                              \
+      (request)->req_base.req_datatype = datatype;                        \
+      (request)->req_base.req_peer = (int32_t)peer;                       \
+      (request)->req_base.req_tag = (int32_t)tag;                         \
+      (request)->req_base.req_comm = comm;                                \
+      (request)->req_base.req_proc = ompi_comm_peer_lookup(comm,peer);    \
+      (request)->req_base.req_persistent = persistent;                    \
+      (request)->req_base.req_pml_complete = (persistent ? true : false); \
+      (request)->req_base.req_free_called = false;                        \
+      (request)->req_base.req_ompi.req_status._cancelled = 0;             \
                                                                           \
       /* initialize datatype convertor for this request */                \
       if(count > 0) {                                                     \
-         ompi_convertor_copy( request->req_base.req_proc->proc_convertor, \
-                              &request->req_convertor);                   \
+         ompi_convertor_copy((request)->req_base.req_proc->proc_convertor,\
+                              &(request)->req_convertor);                 \
          /* We will create a convertor specialized for send       */      \
          /* just to be able to get the packed size. This size     */      \
          /* depend on the conversion used sender side or receiver */      \
          /* size. BEWARE this convertor is not suitable for the   */      \
          /* sending operation !!                                  */      \
-         ompi_convertor_init_for_send( &request->req_convertor,           \
+         ompi_convertor_init_for_send( &(request)->req_convertor,         \
                                        0,                                 \
-                                       request->req_base.req_datatype,    \
-                                       request->req_base.req_count,       \
-                                       request->req_base.req_addr,        \
+                                       (request)->req_base.req_datatype,  \
+                                       (request)->req_base.req_count,     \
+                                       (request)->req_base.req_addr,      \
                                        0, NULL );                         \
-         ompi_convertor_get_packed_size( &request->req_convertor,         \
-                              (uint32_t*)&(request->req_bytes_packed) );  \
+         ompi_convertor_get_packed_size( &(request)->req_convertor,       \
+                              (uint32_t*)&((request)->req_bytes_packed) );\
       } else {                                                            \
-         request->req_bytes_packed = 0;                                   \
+         (request)->req_bytes_packed = 0;                                 \
       }                                                                   \
    }
 
@@ -122,8 +122,9 @@ typedef struct mca_pml_base_send_request_t mca_pml_base_send_request_t;
  *  @param request (IN)    The send request.
  */
 
-#define MCA_PML_BASE_SEND_REQUEST_RETURN( request )                       \
+#define MCA_PML_BASE_SEND_REQUEST_FINI( request )                         \
     do {                                                                  \
+        OMPI_REQUEST_FINI(&(request)->req_base.req_ompi);                 \
         OBJ_RELEASE((request)->req_base.req_comm);                        \
         OBJ_RELEASE((request)->req_base.req_datatype);                    \
     } while (0)

src/mca/pml/ob1/.ompi_unignore

@@ -0,0 +1,2 @@
+twoodall
+gshipman

src/mca/pml/ob1/Makefile.am

@@ -0,0 +1,41 @@
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#						 All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#						 All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#						 University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#						 All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+include $(top_ompi_srcdir)/config/Makefile.options
+
+noinst_LTLIBRARIES = libmca_pml_ob1.la
+libmca_pml_ob1_la_SOURCES = \
+	pml_ob1.c \
+	pml_ob1.h \
+	pml_ob1_comm.c \
+	pml_ob1_component.c \
+	pml_ob1_component.h \
+	pml_ob1_endpoint.c \
+	pml_ob1_endpoint.h \
+	pml_ob1_iprobe.c \
+	pml_ob1_irecv.c \
+	pml_ob1_isend.c \
+	pml_ob1_match.c \
+	pml_ob1_proc.c \
+	pml_ob1_proc.h \
+	pml_ob1_progress.c \
+	pml_ob1_recvfrag.c \
+	pml_ob1_recvfrag.h \
+	pml_ob1_recvreq.c \
+	pml_ob1_recvreq.h \
+	pml_ob1_sendreq.c \
+	pml_ob1_sendreq.h \
+	pml_ob1_start.c 

src/mca/pml/ob1/configure.params

@@ -0,0 +1,22 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# Specific to this module
+
+PARAM_INIT_FILE=pml_ob1.c
+PARAM_CONFIG_HEADER_FILE="ob1_config.h"
+PARAM_CONFIG_FILES="Makefile"

src/mca/pml/ob1/pml_ob1.c

@@ -0,0 +1,405 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "class/ompi_bitmap.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/bmi/base/base.h"
+#include "pml_ob1.h"
+#include "pml_ob1_component.h"
+#include "pml_ob1_comm.h"
+#include "pml_ob1_proc.h"
+#include "pml_ob1_hdr.h"
+
+
+mca_pml_ob1_t mca_pml_ob1 = {
+    {
+    mca_pml_ob1_add_procs,
+    mca_pml_ob1_del_procs,
+    mca_pml_ob1_enable,
+    mca_pml_ob1_progress,
+    mca_pml_ob1_add_comm,
+    mca_pml_ob1_del_comm,
+    mca_pml_ob1_irecv_init,
+    mca_pml_ob1_irecv,
+    mca_pml_ob1_recv,
+    mca_pml_ob1_isend_init,
+    mca_pml_ob1_isend,
+    mca_pml_ob1_send,
+    mca_pml_ob1_iprobe,
+    mca_pml_ob1_probe,
+    mca_pml_ob1_start
+    }
+};
+
+
+int mca_pml_ob1_enable(bool enable)
+{
+    return OMPI_SUCCESS;
+}
+
+int mca_pml_ob1_add_comm(ompi_communicator_t* comm)
+{
+    /* allocate pml specific comm data */
+    mca_pml_ob1_comm_t* pml_comm = OBJ_NEW(mca_pml_ob1_comm_t);
+    int i;
+
+    if (NULL == pml_comm) {
+        return OMPI_ERR_OUT_OF_RESOURCE;
+    }
+    mca_pml_ob1_comm_init_size(pml_comm, comm->c_remote_group->grp_proc_count);
+    comm->c_pml_comm = pml_comm;
+    comm->c_pml_procs = (mca_pml_ob1_proc_t**)malloc(
+        comm->c_remote_group->grp_proc_count * sizeof(mca_pml_ob1_proc_t));
+    if(NULL == comm->c_pml_procs) {
+        return OMPI_ERR_OUT_OF_RESOURCE;
+    }
+
+    for(i=0; i<comm->c_remote_group->grp_proc_count; i++)
+        comm->c_pml_procs[i] = comm->c_remote_group->grp_proc_pointers[i]->proc_pml;
+    return OMPI_SUCCESS;
+}
+
+int mca_pml_ob1_del_comm(ompi_communicator_t* comm)
+{
+    OBJ_RELEASE(comm->c_pml_comm);
+    comm->c_pml_comm = NULL;
+    if(comm->c_pml_procs != NULL)
+        free(comm->c_pml_procs);
+    comm->c_pml_procs = NULL;
+    return OMPI_SUCCESS;
+}
+
+static int bmi_exclusivity_compare(const void* arg1, const void* arg2)
+{
+    mca_bmi_base_module_t* bmi1 = *(struct mca_bmi_base_module_t**)arg1;
+    mca_bmi_base_module_t* bmi2 = *(struct mca_bmi_base_module_t**)arg2;
+    if( bmi1->bmi_exclusivity > bmi2->bmi_exclusivity ) {
+        return -1;
+    } else if (bmi1->bmi_exclusivity == bmi2->bmi_exclusivity ) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+
+int mca_pml_ob1_add_bmis()
+{
+    /* build an array of ob1s and ob1 modules */
+    ompi_list_t* bmis = &mca_bmi_base_modules_initialized;
+    mca_bmi_base_selected_module_t* selected_bmi;
+    size_t num_bmis = ompi_list_get_size(bmis);
+    mca_pml_ob1.num_bmi_modules = 0;
+    mca_pml_ob1.num_bmi_progress = 0;
+    mca_pml_ob1.num_bmi_components = 0;
+    mca_pml_ob1.bmi_modules = (mca_bmi_base_module_t **)malloc(sizeof(mca_bmi_base_module_t*) * num_bmis);
+    mca_pml_ob1.bmi_progress = (mca_bmi_base_component_progress_fn_t*)malloc(sizeof(mca_bmi_base_component_progress_fn_t) * num_bmis);
+    mca_pml_ob1.bmi_components = (mca_bmi_base_component_t **)malloc(sizeof(mca_bmi_base_component_t*) * num_bmis);
+    if (NULL == mca_pml_ob1.bmi_modules || 
+        NULL == mca_pml_ob1.bmi_progress ||
+        NULL == mca_pml_ob1.bmi_components) {
+        return OMPI_ERR_OUT_OF_RESOURCE;
+    }
+
+    for(selected_bmi =  (mca_bmi_base_selected_module_t*)ompi_list_get_first(bmis);
+        selected_bmi != (mca_bmi_base_selected_module_t*)ompi_list_get_end(bmis);
+        selected_bmi =  (mca_bmi_base_selected_module_t*)ompi_list_get_next(selected_bmi)) {
+        mca_bmi_base_module_t *bmi = selected_bmi->bmi_module;
+        size_t i;
+        int rc;
+
+        mca_pml_ob1.bmi_modules[mca_pml_ob1.num_bmi_modules++] = bmi;
+        for(i=0; i<mca_pml_ob1.num_bmi_components; i++) {
+          if(mca_pml_ob1.bmi_components[i] == bmi->bmi_component) {
+                break;
+          }
+        }
+
+        /* setup callback for receive */
+        rc = bmi->bmi_register(bmi, MCA_BMI_TAG_PML, mca_pml_ob1_recv_callback, NULL);
+        if(OMPI_SUCCESS != rc)
+            return rc;
+
+        if(i == mca_pml_ob1.num_bmi_components) {
+            mca_pml_ob1.bmi_components[mca_pml_ob1.num_bmi_components++] = bmi->bmi_component;
+        }
+    }
+
+    /* sort ob1 list by exclusivity */
+    qsort(mca_pml_ob1.bmi_modules, 
+          mca_pml_ob1.num_bmi_modules, 
+          sizeof(struct mca_bmi_base_module_t*), 
+          bmi_exclusivity_compare);
+    return OMPI_SUCCESS;
+}
+
+
+/*
+ *   For each proc setup a datastructure that indicates the PTLs
+ *   that can be used to reach the destination.
+ *
+ */
+
+int mca_pml_ob1_add_procs(ompi_proc_t** procs, size_t nprocs)
+{
+    size_t p;
+    ompi_bitmap_t reachable;
+    struct mca_bmi_base_endpoint_t** bmi_endpoints = NULL;
+    int rc;
+    size_t p_index;
+    
+    if(nprocs == 0)
+        return OMPI_SUCCESS;
+
+    OBJ_CONSTRUCT(&reachable, ompi_bitmap_t);
+    rc = ompi_bitmap_init(&reachable, nprocs);
+    if(OMPI_SUCCESS != rc)
+        return rc;
+
+    /* iterate through each of the procs and set the peers architecture */
+    for(p=0; p<nprocs; p++) {
+        uint32_t* proc_arch;
+        size_t size = sizeof(uint32_t);
+        rc = mca_base_modex_recv(&mca_pml_ob1_component.pmlm_version, procs[p], 
+            (void**)&proc_arch, &size);
+        if(rc != OMPI_SUCCESS) 
+            return rc;
+        if(size != sizeof(uint32_t))
+            return OMPI_ERROR;
+        procs[p]->proc_arch = ntohl(*proc_arch);
+        free(proc_arch);
+    }
+    
+    /* attempt to add all procs to each ob1 */
+    bmi_endpoints = (struct mca_bmi_base_endpoint_t **)malloc(nprocs * sizeof(struct mca_bmi_base_endpoint_t*));
+    for(p_index = 0; p_index < mca_pml_ob1.num_bmi_modules; p_index++) {
+        mca_bmi_base_module_t* bmi = mca_pml_ob1.bmi_modules[p_index];
+        int bmi_inuse = 0;
+
+        /* if the ob1 can reach the destination proc it sets the
+         * corresponding bit (proc index) in the reachable bitmap
+         * and can return addressing information for each proc
+         * that is passed back to the ob1 on data transfer calls
+         */
+        ompi_bitmap_clear_all_bits(&reachable);
+        memset(bmi_endpoints, 0, nprocs * sizeof(struct mca_ob1_base_endpoint_t*));
+        rc = bmi->bmi_add_procs(bmi, nprocs, procs, bmi_endpoints, &reachable);
+        if(OMPI_SUCCESS != rc) {
+            free(bmi_endpoints);
+            return rc;
+        }
+
+        /* for each proc that is reachable - add the ob1 to the procs array(s) */
+        for(p=0; p<nprocs; p++) {
+            if(ompi_bitmap_is_set_bit(&reachable, p)) {
+                ompi_proc_t *proc = procs[p];
+                mca_pml_ob1_proc_t* proc_pml = proc->proc_pml;
+                mca_pml_ob1_endpoint_t* endpoint;
+                size_t size;
+
+                /* this ob1 can be used */
+                bmi_inuse++;
+
+                /* initialize each proc */
+                if(NULL == proc_pml) {
+
+                    /* allocate pml specific proc data */
+                    proc_pml = OBJ_NEW(mca_pml_ob1_proc_t);
+                    if (NULL == proc_pml) {
+                        ompi_output(0, "mca_pml_ob1_add_procs: unable to allocate resources");
+                        free(bmi_endpoints);
+                        return OMPI_ERR_OUT_OF_RESOURCE;
+                    }
+
+                    /* preallocate space in array for max number of ob1s */
+                    mca_pml_ob1_ep_array_reserve(&proc_pml->bmi_first, mca_pml_ob1.num_bmi_modules);
+                    mca_pml_ob1_ep_array_reserve(&proc_pml->bmi_next,  mca_pml_ob1.num_bmi_modules);
+                    proc_pml->proc_ompi = proc;
+                    proc->proc_pml = proc_pml;
+                }
+
+                /* dont allow an additional PTL with a lower exclusivity ranking */
+                size = mca_pml_ob1_ep_array_get_size(&proc_pml->bmi_next);
+                if(size > 0) {
+                    endpoint = mca_pml_ob1_ep_array_get_index(&proc_pml->bmi_next, size-1);
+                    /* skip this ob1 if the exclusivity is less than the previous */
+                    if(endpoint->bmi->bmi_exclusivity > bmi->bmi_exclusivity) {
+                        if(bmi_endpoints[p] != NULL) {
+                            bmi->bmi_del_procs(bmi, 1, &proc, &bmi_endpoints[p]);
+                        }
+                        continue;
+                    }
+                }
+               
+                /* cache the ob1 on the proc */
+                endpoint = mca_pml_ob1_ep_array_insert(&proc_pml->bmi_next);
+                endpoint->bmi = bmi;
+                endpoint->bmi_cache = NULL;
+                endpoint->bmi_endpoint = bmi_endpoints[p];
+                endpoint->bmi_weight = 0;
+                endpoint->bmi_alloc = bmi->bmi_alloc;
+                endpoint->bmi_free = bmi->bmi_free;
+                endpoint->bmi_send = bmi->bmi_send;
+                endpoint->bmi_put = bmi->bmi_put;
+                endpoint->bmi_get = bmi->bmi_get;
+            }
+        }
+        if(bmi_inuse > 0 && NULL != bmi->bmi_component->bmi_progress) {
+            size_t p;
+            bool found = false;
+            for(p=0; p<mca_pml_ob1.num_bmi_progress; p++) {
+                if(mca_pml_ob1.bmi_progress[p] == bmi->bmi_component->bmi_progress) {
+                    found = true;
+                    break;
+                }
+            }
+            if(found == false) {
+                mca_pml_ob1.bmi_progress[mca_pml_ob1.num_bmi_progress] = 
+                    bmi->bmi_component->bmi_progress;
+                mca_pml_ob1.num_bmi_progress++;
+            }
+        }
+    }
+    free(bmi_endpoints);
+
+    /* iterate back through procs and compute metrics for registered ob1s */
+    for(p=0; p<nprocs; p++) {
+        ompi_proc_t *proc = procs[p];
+        mca_pml_ob1_proc_t* proc_pml = proc->proc_pml;
+        double total_bandwidth = 0;
+        uint32_t latency = 0;
+        size_t n_index;
+        size_t n_size;
+
+        /* skip over procs w/ no ob1s registered */
+        if(NULL == proc_pml)
+            continue;
+
+        /* (1) determine the total bandwidth available across all ob1s
+         *     note that we need to do this here, as we may already have ob1s configured
+         * (2) determine the highest priority ranking for latency
+         */
+        n_size = mca_pml_ob1_ep_array_get_size(&proc_pml->bmi_next); 
+        for(n_index = 0; n_index < n_size; n_index++) {
+            mca_pml_ob1_endpoint_t* endpoint = 
+                mca_pml_ob1_ep_array_get_index(&proc_pml->bmi_next, n_index);
+            mca_bmi_base_module_t* ob1 = endpoint->bmi;
+            total_bandwidth += endpoint->bmi->bmi_bandwidth; 
+            if(ob1->bmi_latency > latency)
+                latency = ob1->bmi_latency;
+        }
+
+        /* (1) set the weight of each ob1 as a percentage of overall bandwidth
+         * (2) copy all ob1 instances at the highest priority ranking into the
+         *     list of ob1s used for first fragments
+         */
+
+        for(n_index = 0; n_index < n_size; n_index++) {
+            mca_pml_ob1_endpoint_t* endpoint = 
+                mca_pml_ob1_ep_array_get_index(&proc_pml->bmi_next, n_index);
+            mca_bmi_base_module_t *ob1 = endpoint->bmi;
+            double weight;
+
+            /* compute weighting factor for this ob1 */
+            if(ob1->bmi_bandwidth)
+                weight = endpoint->bmi->bmi_bandwidth / total_bandwidth;
+            else
+                weight = 1.0 / n_size;
+            endpoint->bmi_weight = (int)(weight * 100);
+
+            /* check to see if this ob1 is already in the array of ob1s 
+             * used for first fragments - if not add it.
+             */
+            if(ob1->bmi_latency == latency) {
+                mca_pml_ob1_endpoint_t* ep_new = 
+                    mca_pml_ob1_ep_array_insert(&proc_pml->bmi_first);
+                *ep_new = *endpoint;
+            }
+        }
+    }
+    return OMPI_SUCCESS;
+}
+
+/*
+ * iterate through each proc and notify any PTLs associated
+ * with the proc that it is/has gone away
+ */
+
+int mca_pml_ob1_del_procs(ompi_proc_t** procs, size_t nprocs)
+{
+    size_t p;
+    int rc;
+    for(p = 0; p < nprocs; p++) {
+        ompi_proc_t *proc = procs[p];
+        mca_pml_ob1_proc_t* proc_pml = proc->proc_pml;
+        size_t f_index, f_size;
+        size_t n_index, n_size;
+ 
+        /* notify each ob1 that the proc is going away */
+        f_size = mca_pml_ob1_ep_array_get_size(&proc_pml->bmi_first);
+        for(f_index = 0; f_index < f_size; f_index++) {
+            mca_pml_ob1_endpoint_t* endpoint = mca_pml_ob1_ep_array_get_index(&proc_pml->bmi_first, f_index);
+            mca_bmi_base_module_t* ob1 = endpoint->bmi;
+            
+            rc = ob1->bmi_del_procs(ob1,1,&proc,&endpoint->bmi_endpoint);
+            if(OMPI_SUCCESS != rc) {
+                return rc;
+            }
+
+            /* remove this from next array so that we dont call it twice w/ 
+             * the same address pointer
+             */
+            n_size = mca_pml_ob1_ep_array_get_size(&proc_pml->bmi_first);
+            for(n_index = 0; n_index < n_size; n_index++) {
+                mca_pml_ob1_endpoint_t* endpoint = mca_pml_ob1_ep_array_get_index(&proc_pml->bmi_next, n_index);
+                if(endpoint->bmi == ob1) {
+                    memset(endpoint, 0, sizeof(mca_pml_ob1_endpoint_t));
+                    break;
+                }
+            }
+        }
+
+        /* notify each ob1 that was not in the array of ob1s for first fragments */
+        n_size = mca_pml_ob1_ep_array_get_size(&proc_pml->bmi_next);
+        for(n_index = 0; n_index < n_size; n_index++) {
+            mca_pml_ob1_endpoint_t* endpoint = mca_pml_ob1_ep_array_get_index(&proc_pml->bmi_first, n_index);
+            mca_bmi_base_module_t* ob1 = endpoint->bmi;
+            if (ob1 != 0) {
+                rc = ob1->bmi_del_procs(ob1,1,&proc,&endpoint->bmi_endpoint);
+                if(OMPI_SUCCESS != rc)
+                    return rc;
+            }
+        }
+        
+        /* do any required cleanup */
+        OBJ_RELEASE(proc_pml);
+        proc->proc_pml = NULL;
+    }
+    return OMPI_SUCCESS;
+}
+
+int mca_pml_ob1_component_fini(void)
+{
+    /* FIX */
+    return OMPI_SUCCESS;
+}
+

src/mca/pml/ob1/pml_ob1.h

@@ -0,0 +1,266 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ *  @file 
+ */
+
+#ifndef MCA_PML_GEN2_H
+#define MCA_PML_GEN2_H
+
+#include "threads/thread.h"
+#include "threads/condition.h"
+#include "class/ompi_free_list.h"
+#include "util/cmd_line.h"
+#include "request/request.h"
+#include "mca/pml/pml.h"
+#include "mca/pml/base/pml_base_request.h"
+#include "mca/pml/base/pml_base_bsend.h"
+#include "mca/pml/base/pml_base_sendreq.h"
+#include "mca/bmi/bmi.h"
+
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+/**
+ * GEN2 PML module
+ */
+
+struct mca_pml_ob1_t {
+    mca_pml_base_module_t super; 
+
+    mca_bmi_base_component_t **bmi_components;
+    size_t num_bmi_components;
+
+    mca_bmi_base_module_t** bmi_modules;
+    size_t num_bmi_modules;
+
+    mca_bmi_base_component_progress_fn_t* bmi_progress;
+    size_t num_bmi_progress;
+
+    int priority;
+    int free_list_num;   /* initial size of free list */
+    int free_list_max;   /* maximum size of free list */
+    int free_list_inc;   /* number of elements to grow free list */
+    int poll_iterations; /* number of iterations to poll for completion */
+
+    /* lock queue access */
+    ompi_mutex_t lock;
+
+    /* free list of requests */
+    ompi_free_list_t send_requests;
+    ompi_free_list_t recv_requests;
+
+    /* list of pending send requests */
+    ompi_list_t send_pending;
+};
+typedef struct mca_pml_ob1_t mca_pml_ob1_t; 
+
+extern mca_pml_ob1_t mca_pml_ob1;
+
+
+/*
+ * PML module functions.
+ */
+
+
+extern int mca_pml_ob1_component_open(void);
+extern int mca_pml_ob1_component_close(void);
+
+extern mca_pml_base_module_t* mca_pml_ob1_component_init(
+    int *priority, 
+    bool enable_progress_threads,
+    bool enable_mpi_threads
+);
+
+extern int mca_pml_ob1_component_fini(void);
+
+
+
+/*
+ * PML interface functions.
+ */
+
+extern int mca_pml_ob1_add_comm(
+    struct ompi_communicator_t* comm
+);
+
+extern int mca_pml_ob1_del_comm(
+    struct ompi_communicator_t* comm
+);
+
+extern int mca_pml_ob1_add_procs(
+    struct ompi_proc_t **procs,
+    size_t nprocs
+);
+
+extern int mca_pml_ob1_del_procs(
+    struct ompi_proc_t **procs,
+    size_t nprocs
+);
+
+extern int mca_pml_ob1_add_bmis(void);
+
+extern int mca_pml_ob1_enable(
+    bool enable
+);
+
+extern int mca_pml_ob1_progress(void);
+
+extern int mca_pml_ob1_iprobe(
+    int dst,
+    int tag,
+    struct ompi_communicator_t* comm,
+    int *matched,
+    ompi_status_public_t* status
+);
+
+extern int mca_pml_ob1_probe(
+    int dst,
+    int tag,
+    struct ompi_communicator_t* comm,
+    ompi_status_public_t* status
+);
+
+extern int mca_pml_ob1_isend_init(
+    void *buf,
+    size_t count,
+    ompi_datatype_t *datatype,
+    int dst,
+    int tag,
+    mca_pml_base_send_mode_t mode,
+    struct ompi_communicator_t* comm,
+    struct ompi_request_t **request
+);
+
+extern int mca_pml_ob1_isend(
+    void *buf,
+    size_t count,
+    ompi_datatype_t *datatype,
+    int dst,
+    int tag,
+    mca_pml_base_send_mode_t mode,
+    struct ompi_communicator_t* comm,
+    struct ompi_request_t **request
+);
+
+extern int mca_pml_ob1_send(
+    void *buf,
+    size_t count,
+    ompi_datatype_t *datatype,
+    int dst,
+    int tag,
+    mca_pml_base_send_mode_t mode,
+    struct ompi_communicator_t* comm
+);
+
+extern int mca_pml_ob1_irecv_init(
+    void *buf,
+    size_t count,
+    ompi_datatype_t *datatype,
+    int src,
+    int tag,
+    struct ompi_communicator_t* comm,
+    struct ompi_request_t **request
+);
+
+extern int mca_pml_ob1_irecv(
+    void *buf,
+    size_t count,
+    ompi_datatype_t *datatype,
+    int src,
+    int tag,
+    struct ompi_communicator_t* comm,
+    struct ompi_request_t **request
+);
+
+extern int mca_pml_ob1_recv(
+    void *buf,
+    size_t count,
+    ompi_datatype_t *datatype,
+    int src,
+    int tag,
+    struct ompi_communicator_t* comm,
+    ompi_status_public_t* status
+);
+
+extern void mca_pml_ob1_recv_callback(
+    mca_bmi_base_module_t* bmi,
+    mca_bmi_base_tag_t tag,
+    mca_bmi_base_descriptor_t* descriptor,
+    void* cbdata
+);
+                                                                                                     
+
+extern int mca_pml_ob1_progress(void);
+
+extern int mca_pml_ob1_start(
+    size_t count,
+    ompi_request_t** requests
+);
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+
+#define MCA_PML_GEN2_FINI(request) \
+{ \
+    mca_pml_base_request_t* pml_request = *(mca_pml_base_request_t**)(request); \
+    if(pml_request->req_persistent) { \
+       if(pml_request->req_free_called) { \
+           MCA_PML_GEN2_FREE(request); \
+       } else { \
+           pml_request->req_ompi.req_state = OMPI_REQUEST_INACTIVE; \
+       } \
+    } else { \
+        MCA_PML_GEN2_FREE(request); \
+    } \
+}
+
+
+#define MCA_PML_GEN2_FREE(request) \
+{ \
+    mca_pml_base_request_t* pml_request = *(mca_pml_base_request_t**)(request); \
+    pml_request->req_free_called = true; \
+    if( pml_request->req_pml_complete == true) \
+    { \
+        switch(pml_request->req_type) { \
+        case MCA_PML_REQUEST_SEND: \
+            { \
+                mca_pml_ob1_send_request_t* sendreq = (mca_pml_ob1_send_request_t*)pml_request; \
+                if(sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) { \
+                    mca_pml_base_bsend_request_fini((ompi_request_t*)sendreq); \
+                } \
+                MCA_PML_GEN2_SEND_REQUEST_RETURN(sendreq); \
+                break; \
+            } \
+        case MCA_PML_REQUEST_RECV: \
+            { \
+                mca_pml_ob1_recv_request_t* recvreq = (mca_pml_ob1_recv_request_t*)pml_request; \
+                MCA_PML_GEN2_RECV_REQUEST_RETURN(recvreq); \
+                break; \
+            } \
+        default: \
+            break; \
+        } \
+    } \
+    *(request) = MPI_REQUEST_NULL; \
+}
+                                                                                                                       
+
+
+#endif
+

src/mca/pml/ob1/pml_ob1_comm.c

@@ -0,0 +1,94 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+#include <string.h>
+
+#include "pml_ob1.h"
+#include "pml_ob1_comm.h"
+
+
+
+static void mca_pml_ob1_comm_proc_construct(mca_pml_ob1_comm_proc_t* proc)
+{
+    proc->expected_sequence = 1;
+    OBJ_CONSTRUCT(&proc->frags_cant_match, ompi_list_t);
+    OBJ_CONSTRUCT(&proc->specific_receives, ompi_list_t);
+    OBJ_CONSTRUCT(&proc->unexpected_frags, ompi_list_t);
+}
+
+
+static void mca_pml_ob1_comm_proc_destruct(mca_pml_ob1_comm_proc_t* proc)
+{
+    OBJ_DESTRUCT(&proc->frags_cant_match);
+    OBJ_DESTRUCT(&proc->specific_receives);
+    OBJ_DESTRUCT(&proc->unexpected_frags);
+}
+
+
+static OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_comm_proc_t,
+    ompi_object_t,
+    mca_pml_ob1_comm_proc_construct,
+    mca_pml_ob1_comm_proc_destruct);
+
+
+static void mca_pml_ob1_comm_construct(mca_pml_ob1_comm_t* comm)
+{
+    OBJ_CONSTRUCT(&comm->wild_receives, ompi_list_t);
+    OBJ_CONSTRUCT(&comm->matching_lock, ompi_mutex_t);
+    comm->recv_sequence = 0;
+    comm->procs = NULL;
+    comm->num_procs = 0;
+}
+
+
+static void mca_pml_ob1_comm_destruct(mca_pml_ob1_comm_t* comm)
+{
+    size_t i;
+    for(i=0; i<comm->num_procs; i++)
+        OBJ_DESTRUCT((&comm->procs[i]));
+    if(NULL != comm->procs)
+        free(comm->procs);
+    OBJ_DESTRUCT(&comm->wild_receives);
+    OBJ_DESTRUCT(&comm->matching_lock);
+}
+
+
+OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_comm_t,
+    ompi_object_t,
+    mca_pml_ob1_comm_construct,
+    mca_pml_ob1_comm_destruct);
+
+
+int mca_pml_ob1_comm_init_size(mca_pml_ob1_comm_t* comm, size_t size)
+{
+    size_t i;
+
+    /* send message sequence-number support - sender side */
+    comm->procs = malloc(sizeof(mca_pml_ob1_comm_proc_t)*size);
+    if(NULL == comm->procs) {
+        return OMPI_ERR_OUT_OF_RESOURCE;
+    }
+    for(i=0; i<size; i++) {
+        OBJ_CONSTRUCT(comm->procs+i, mca_pml_ob1_comm_proc_t);
+    }
+    comm->num_procs = size;
+    return OMPI_SUCCESS;
+}
+
+

src/mca/pml/ob1/pml_ob1_comm.h

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_PML_GEN2_COMM_H
+#define MCA_PML_GEN2_COMM_H
+
+#include "threads/mutex.h"
+#include "threads/condition.h"
+#include "mca/ptl/ptl.h"
+#include "class/ompi_list.h"
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+
+struct mca_pml_ob1_comm_proc_t {
+     ompi_object_t super;
+     uint16_t expected_sequence;    /**< send message sequence number - receiver side */
+     ompi_list_t frags_cant_match;  /**< out-of-order fragment queues */
+     ompi_list_t specific_receives; /**< queues of unmatched specific receives */
+     ompi_list_t unexpected_frags;  /**< unexpected fragment queues */
+};
+typedef struct mca_pml_ob1_comm_proc_t mca_pml_ob1_comm_proc_t;
+
+
+/**
+ *  Cached on ompi_communicator_t to hold queues/state
+ *  used by the PML<->PTL interface for matching logic. 
+ */
+struct mca_pml_comm_t {
+    ompi_object_t super;
+    mca_ptl_sequence_t recv_sequence;  /**< recv request sequence number - receiver side */
+    ompi_mutex_t matching_lock;   /**< matching lock */
+    ompi_list_t wild_receives;    /**< queue of unmatched wild (source process not specified) receives */
+    mca_pml_ob1_comm_proc_t* procs;
+    size_t num_procs;
+};
+typedef struct mca_pml_comm_t mca_pml_ob1_comm_t;
+
+OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_pml_ob1_comm_t);
+
+
+/**
+ * Initialize an instance of mca_pml_ob1_comm_t based on the communicator size.
+ *
+ * @param  comm   Instance of mca_pml_ob1_comm_t
+ * @param  size   Size of communicator 
+ * @return        OMPI_SUCCESS or error status on failure.
+ */
+
+OMPI_DECLSPEC extern int mca_pml_ob1_comm_init_size(mca_pml_ob1_comm_t* comm, size_t size);
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif
+

src/mca/pml/ob1/pml_ob1_component.c

@@ -0,0 +1,191 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+#include "include/sys/cache.h"
+#include "event/event.h"
+#include "mpi.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "mca/bmi/base/base.h"
+#include "mca/base/mca_base_param.h"
+#include "mca/pml/base/pml_base_bsend.h"
+#include "pml_ob1.h"
+#include "pml_ob1_proc.h"
+#include "pml_ob1_hdr.h"
+#include "pml_ob1_sendreq.h"
+#include "pml_ob1_recvreq.h"
+
+
+mca_pml_base_component_1_0_0_t mca_pml_ob1_component = {
+
+    /* First, the mca_base_component_t struct containing meta
+       information about the component itself */
+
+    {
+      /* Indicate that we are a pml v1.0.0 component (which also implies
+         a specific MCA version) */
+
+      MCA_PML_BASE_VERSION_1_0_0,
+    
+      "ob1", /* MCA component name */
+      1,  /* MCA component major version */
+      0,  /* MCA component minor version */
+      0,  /* MCA component release version */
+      mca_pml_ob1_component_open,  /* component open */
+      mca_pml_ob1_component_close  /* component close */
+    },
+
+    /* Next the MCA v1.0.0 component meta data */
+
+    {
+      /* Whether the component is checkpointable or not */
+      false
+    },
+
+    mca_pml_ob1_component_init,  /* component init */
+    mca_pml_ob1_component_fini   /* component finalize */
+};
+
+
+
+static inline int mca_pml_ob1_param_register_int(
+    const char* param_name,
+    int default_value)
+{
+    int id = mca_base_param_register_int("pml","ob1",param_name,NULL,default_value);
+    int param_value = default_value;
+    mca_base_param_lookup_int(id,&param_value);
+    return param_value;
+}
+                                                                                                                        
+
+int mca_pml_ob1_component_open(void)
+{
+    OBJ_CONSTRUCT(&mca_pml_ob1.lock, ompi_mutex_t);
+    OBJ_CONSTRUCT(&mca_pml_ob1.send_requests, ompi_free_list_t);
+    OBJ_CONSTRUCT(&mca_pml_ob1.recv_requests, ompi_free_list_t);
+    OBJ_CONSTRUCT(&mca_pml_ob1.send_pending, ompi_list_t);
+
+    mca_pml_ob1.bmi_components = NULL;
+    mca_pml_ob1.num_bmi_components = 0;
+    mca_pml_ob1.bmi_modules = NULL;
+    mca_pml_ob1.num_bmi_modules = 0;
+    mca_pml_ob1.bmi_progress = NULL;
+    mca_pml_ob1.num_bmi_progress = 0;
+
+    mca_pml_ob1.free_list_num =
+        mca_pml_ob1_param_register_int("free_list_num", 256);
+    mca_pml_ob1.free_list_max =
+        mca_pml_ob1_param_register_int("free_list_max", -1);
+    mca_pml_ob1.free_list_inc =
+        mca_pml_ob1_param_register_int("free_list_inc", 256);
+    mca_pml_ob1.poll_iterations =
+        mca_pml_ob1_param_register_int("poll_iterations", 100000);
+    mca_pml_ob1.priority =
+        mca_pml_ob1_param_register_int("priority", 0);
+
+    return mca_bmi_base_open();
+}
+
+
+int mca_pml_ob1_component_close(void)
+{
+    int rc;
+    if(OMPI_SUCCESS != (rc = mca_bmi_base_close()))
+        return rc;
+
+#if OMPI_ENABLE_DEBUG
+    if (mca_pml_ob1.send_requests.fl_num_allocated !=
+        mca_pml_ob1.send_requests.super.ompi_list_length) {
+        ompi_output(0, "ob1 send requests: %d allocated %d returned\n",
+            mca_pml_ob1.send_requests.fl_num_allocated,
+            mca_pml_ob1.send_requests.super.ompi_list_length);
+    }
+    if (mca_pml_ob1.recv_requests.fl_num_allocated !=
+        mca_pml_ob1.recv_requests.super.ompi_list_length) {
+        ompi_output(0, "ob1 recv requests: %d allocated %d returned\n",
+            mca_pml_ob1.recv_requests.fl_num_allocated,
+            mca_pml_ob1.recv_requests.super.ompi_list_length);
+    }
+#endif
+
+    if(NULL != mca_pml_ob1.bmi_components) {
+        free(mca_pml_ob1.bmi_components);
+    }
+    if(NULL != mca_pml_ob1.bmi_modules) {
+        free(mca_pml_ob1.bmi_modules);
+    }
+    if(NULL != mca_pml_ob1.bmi_progress) {
+        free(mca_pml_ob1.bmi_progress);
+    }
+    OBJ_DESTRUCT(&mca_pml_ob1.send_pending);
+    OBJ_DESTRUCT(&mca_pml_ob1.send_requests);
+    OBJ_DESTRUCT(&mca_pml_ob1.recv_requests);
+    OBJ_DESTRUCT(&mca_pml_ob1.lock);
+    return OMPI_SUCCESS;
+}
+
+
+mca_pml_base_module_t* mca_pml_ob1_component_init(int* priority, 
+                                                  bool enable_progress_threads,
+                                                  bool enable_mpi_threads)
+{
+    uint32_t proc_arch;
+    int rc;
+    *priority = mca_pml_ob1.priority;
+
+    /* requests */
+    ompi_free_list_init(
+        &mca_pml_ob1.send_requests,
+        sizeof(mca_pml_ob1_send_request_t),
+        OBJ_CLASS(mca_pml_ob1_send_request_t), 
+        mca_pml_ob1.free_list_num,
+        mca_pml_ob1.free_list_max,
+        mca_pml_ob1.free_list_inc,
+        NULL);
+
+    ompi_free_list_init(
+        &mca_pml_ob1.recv_requests,
+        sizeof(mca_pml_ob1_recv_request_t),
+        OBJ_CLASS(mca_pml_ob1_recv_request_t), 
+        mca_pml_ob1.free_list_num,
+        mca_pml_ob1.free_list_max,
+        mca_pml_ob1.free_list_inc,
+        NULL);
+
+    /* buffered send */
+    if(OMPI_SUCCESS != mca_pml_base_bsend_init(enable_mpi_threads)) {
+        ompi_output(0, "mca_pml_ob1_component_init: mca_pml_bsend_init failed\n");
+        return NULL;
+    }
+
+    /* post this processes datatype */
+    proc_arch = ompi_proc_local()->proc_arch;
+    proc_arch = htonl(proc_arch);
+    rc = mca_base_modex_send(&mca_pml_ob1_component.pmlm_version, &proc_arch, sizeof(proc_arch));
+    if(rc != OMPI_SUCCESS)
+        return NULL;
+    
+    /* initialize NTLs */
+    if(OMPI_SUCCESS != mca_bmi_base_select(enable_progress_threads,enable_mpi_threads))
+         return NULL;
+    if(OMPI_SUCCESS != mca_pml_ob1_add_bmis())
+        return NULL;
+
+    return &mca_pml_ob1.super;
+}
+

src/mca/pml/ob1/pml_ob1_component.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ *  @file 
+ */
+
+#ifndef MCA_PML_GEN2_COMPONENT_H
+#define MCA_PML_GEN2_COMPONENT_H
+
+/*
+ * PML module functions.
+ */
+
+OMPI_COMP_EXPORT extern mca_pml_base_component_1_0_0_t mca_pml_ob1_component;
+
+#endif

src/mca/pml/ob1/pml_ob1_endpoint.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include <string.h>
+
+#include "mca/pml/pml.h"
+#include "pml_ob1_endpoint.h"
+
+
+static void mca_pml_ob1_ep_array_construct(mca_pml_ob1_ep_array_t* array)
+{
+    array->arr_endpoints = NULL;
+    array->arr_size = 0;
+    array->arr_index = 0;
+    array->arr_reserve = 0;
+}
+
+
+static void mca_pml_ob1_ep_array_destruct(mca_pml_ob1_ep_array_t* array)
+{
+    if(NULL != array->arr_endpoints)
+        free(array->arr_endpoints);
+}
+
+OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_ep_array_t,
+    ompi_object_t,
+    mca_pml_ob1_ep_array_construct,
+    mca_pml_ob1_ep_array_destruct
+);
+
+int mca_pml_ob1_ep_array_reserve(mca_pml_ob1_ep_array_t* array, size_t size)
+{
+    size_t old_len = sizeof(mca_pml_ob1_endpoint_t)*array->arr_reserve;
+    size_t new_len = sizeof(mca_pml_ob1_endpoint_t)*size;
+    if(old_len >= new_len)
+        return OMPI_SUCCESS;
+    
+    array->arr_endpoints = realloc(array->arr_endpoints, new_len);
+    if(NULL == array->arr_endpoints)
+        return OMPI_ERR_OUT_OF_RESOURCE;
+    memset((unsigned char*)array->arr_endpoints + old_len, 0, new_len-old_len);
+    array->arr_reserve = size;
+    return OMPI_SUCCESS;
+}
+

src/mca/pml/ob1/pml_ob1_endpoint.h

@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_PML_GEN2_ENDPOINT_H
+#define MCA_PML_GEN2_ENDPOINT_H
+
+#include "util/output.h"
+#include "mca/bmi/bmi.h"
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+/**
+ * A data structure associated with a ompi_proc_t that caches
+ * addressing/scheduling attributes for a specific NTL instance
+ * that can be used to reach the process.
+ */
+
+struct mca_pml_ob1_endpoint_t {
+    int    bmi_weight;                            /**< NTL weight for scheduling */
+    size_t bmi_eager_limit;                       /**< NTL eager limit */
+    struct mca_bmi_base_module_t *bmi;            /**< NTL module */
+    struct mca_bmi_base_endpoint_t* bmi_endpoint; /**< NTL addressing info */
+    struct mca_bmi_base_descriptor_t* bmi_cache;
+
+    /* NTL function table */
+    mca_bmi_base_module_alloc_fn_t bmi_alloc;
+    mca_bmi_base_module_free_fn_t  bmi_free;
+    mca_bmi_base_module_send_fn_t  bmi_send;
+    mca_bmi_base_module_put_fn_t   bmi_put;
+    mca_bmi_base_module_get_fn_t   bmi_get;
+};
+typedef struct mca_pml_ob1_endpoint_t mca_pml_ob1_endpoint_t;
+
+/**
+ * A dynamically growable array of mca_pml_ob1_endpoint_t instances.
+ * Maintains an index into the array that is used for round-robin
+ * scheduling across contents.
+ */
+struct mca_pml_ob1_ep_array_t {
+    ompi_object_t super;
+    size_t arr_size;    /**< number available */
+    size_t arr_reserve; /**< size of allocated bmi_proc array */
+    size_t arr_index;   /**< last used index*/
+    mca_pml_ob1_endpoint_t* arr_endpoints;   /**< array of bmi endpoints */
+};
+typedef struct mca_pml_ob1_ep_array_t mca_pml_ob1_ep_array_t;
+
+
+OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_pml_ob1_ep_array_t);
+
+
+/**
+ * If required, reallocate (grow) the array to the indicate size.
+ * 
+ * @param array (IN)
+ * @param size (IN)
+ */
+int mca_pml_ob1_ep_array_reserve(mca_pml_ob1_ep_array_t*, size_t);
+
+static inline size_t mca_pml_ob1_ep_array_get_size(mca_pml_ob1_ep_array_t* array)
+{
+    return array->arr_size;
+}
+
+/**
+ * Grow the array if required, and set the size.
+ * 
+ * @param array (IN)
+ * @param size (IN)
+ */
+static inline void mca_pml_ob1_ep_array_set_size(mca_pml_ob1_ep_array_t* array, size_t size)
+{
+    if(array->arr_size > array->arr_reserve)
+        mca_pml_ob1_ep_array_reserve(array, size);
+    array->arr_size = size;
+}
+
+/**
+ * Grow the array size by one and return the item at that index.
+ * 
+ * @param array (IN)
+ */
+static inline mca_pml_ob1_endpoint_t* mca_pml_ob1_ep_array_insert(mca_pml_ob1_ep_array_t* array)
+{
+#if OMPI_ENABLE_DEBUG
+    if(array->arr_size >= array->arr_reserve) {
+        ompi_output(0, "mca_pml_ob1_ep_array_insert: invalid array index %d >= %d", 
+            array->arr_size, array->arr_reserve);
+        return 0;
+    }
+#endif
+    return &array->arr_endpoints[array->arr_size++];
+}
+
+/**
+ * Return an array item at the specified index.
+ * 
+ * @param array (IN)
+ * @param index (IN)
+ */
+static inline mca_pml_ob1_endpoint_t* mca_pml_ob1_ep_array_get_index(mca_pml_ob1_ep_array_t* array, size_t index)
+{
+#if OMPI_ENABLE_DEBUG
+    if(index >= array->arr_size) {
+        ompi_output(0, "mca_pml_ob1_ep_array_get_index: invalid array index %d >= %d",
+            index, array->arr_size);
+        return 0;
+    }
+#endif
+    return &array->arr_endpoints[index];
+}
+
+/**
+ * Return the next LRU index in the array.
+ * 
+ * @param array (IN)
+ * @param index (IN)
+ */
+static inline mca_pml_ob1_endpoint_t* mca_pml_ob1_ep_array_get_next(mca_pml_ob1_ep_array_t* array)
+{
+    mca_pml_ob1_endpoint_t* endpoint;
+#if OMPI_ENABLE_DEBUG
+    if(array->arr_size == 0) {
+        ompi_output(0, "mca_pml_ob1_ep_array_get_next: invalid array size");
+        return 0;
+    }
+#endif
+    endpoint = &array->arr_endpoints[array->arr_index++];
+    if(array->arr_index == array->arr_size) {
+        array->arr_index = 0;
+    }
+    return endpoint;
+}
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif
+

src/mca/pml/ob1/pml_ob1_hdr.h

@@ -0,0 +1,223 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_PML_GEN2_HEADER_H
+#define MCA_PML_GEN2_HEADER_H
+
+#include "ompi_config.h"
+#include "mca/ptl/ptl.h"
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_NETINET_IN_H
+#include <netinet/in.h>
+#endif
+
+#define MCA_PML_GEN2_HDR_TYPE_MATCH    1
+#define MCA_PML_GEN2_HDR_TYPE_RNDV     2
+#define MCA_PML_GEN2_HDR_TYPE_FRAG     3
+#define MCA_PML_GEN2_HDR_TYPE_ACK      4
+#define MCA_PML_GEN2_HDR_TYPE_NACK     5
+#define MCA_PML_GEN2_HDR_TYPE_GET      6
+#define MCA_PML_GEN2_HDR_TYPE_FIN      7
+#define MCA_PML_GEN2_HDR_TYPE_MAX      8
+
+#define MCA_PML_GEN2_HDR_FLAGS_ACK     1  /* is an ack required */
+#define MCA_PML_GEN2_HDR_FLAGS_NBO     2  /* is the hdr in network byte order */
+
+
+/*
+ * Convert a 64 bit value to network byte order.
+ */
+
+static inline uint64_t hton64(uint64_t val)
+{ 
+    union { uint64_t ll;                
+            uint32_t l[2]; 
+    } w, r;      
+
+    /* platform already in network byte order? */
+    if(htonl(1) == 1L)
+        return val;
+    w.ll = val;
+    r.l[0] = htonl(w.l[1]);
+    r.l[1] = htonl(w.l[0]);
+    return r.ll; 
+}
+
+
+/*
+ * Convert a 64 bit value from network to host byte order.
+ */
+
+static inline uint64_t ntoh64(uint64_t val)
+{ 
+    union { uint64_t ll;                
+            uint32_t l[2]; 
+    } w, r;      
+
+    /* platform already in network byte order? */
+    if(htonl(1) == 1L)
+        return val;
+    w.ll = val;
+    r.l[0] = ntohl(w.l[1]);
+    r.l[1] = ntohl(w.l[0]);
+    return r.ll; 
+}
+
+
+/**
+ * Common hdr attributes - must be first element in each hdr type 
+ */
+struct mca_pml_ob1_common_hdr_t {
+    uint8_t hdr_type;  /**< type of envelope */
+    uint8_t hdr_flags; /**< flags indicating how fragment should be processed */
+};
+typedef struct mca_pml_ob1_common_hdr_t mca_pml_ob1_common_hdr_t;
+
+#define MCA_PML_GEN2_COMMON_HDR_NTOH(h) 
+
+#define MCA_PML_GEN2_COMMON_HDR_HTON(h) 
+
+/**
+ *  Header definition for the first fragment, contains the 
+ *  attributes required to match the corresponding posted receive.
+ */
+struct mca_pml_ob1_match_hdr_t {
+    mca_pml_ob1_common_hdr_t hdr_common;   /**< common attributes */
+    uint16_t hdr_contextid;                    /**< communicator index */
+    int32_t  hdr_src;                          /**< source rank */
+    int32_t  hdr_dst;                          /**< destination rank */
+    int32_t  hdr_tag;                          /**< user tag */
+    uint64_t hdr_msg_length;                   /**< message length */
+    uint16_t hdr_msg_seq;                      /**< message sequence number */
+};
+typedef struct mca_pml_ob1_match_hdr_t mca_pml_ob1_match_hdr_t;
+
+#define MCA_PML_GEN2_MATCH_HDR_NTOH(h) \
+    do { \
+    MCA_PML_GEN2_COMMON_HDR_NTOH((h).hdr_common); \
+    (h).hdr_contextid = ntohs((h).hdr_contextid); \
+    (h).hdr_src = ntohl((h).hdr_src); \
+    (h).hdr_dst = ntohl((h).hdr_dst); \
+    (h).hdr_tag = ntohl((h).hdr_tag); \
+    (h).hdr_msg_length = ntoh64((h).hdr_msg_length); \
+    (h).hdr_msg_seq = ntohs((h).hdr_msg_seq); \
+    } while (0)
+
+#define MCA_PML_GEN2_MATCH_HDR_HTON(h) \
+    do { \
+    MCA_PML_GEN2_COMMON_HDR_HTON((h).hdr_common); \
+    (h).hdr_contextid = htons((h).hdr_contextid); \
+    (h).hdr_src = htonl((h).hdr_src); \
+    (h).hdr_dst = htonl((h).hdr_dst); \
+    (h).hdr_tag = htonl((h).hdr_tag); \
+    (h).hdr_msg_length = hton64((h).hdr_msg_length); \
+    (h).hdr_msg_seq = htons((h).hdr_msg_seq); \
+    } while (0) 
+    
+/**
+ * Header definition for the first fragment when an acknowledgment
+ * is required. This could be the first fragment of a large message
+ * or a short message that requires an ack (synchronous).
+ */
+struct mca_pml_ob1_rendezvous_hdr_t {
+    mca_pml_ob1_match_hdr_t hdr_match;
+    uint64_t hdr_frag_length;                /**< fragment length */
+    ompi_ptr_t hdr_src_ptr;                  /**< pointer to source fragment - returned in ack */
+};
+typedef struct mca_pml_ob1_rendezvous_hdr_t mca_pml_ob1_rendezvous_hdr_t;
+
+#define MCA_PML_GEN2_RNDV_HDR_NTOH(h) \
+    do { \
+    MCA_PML_GEN2_MATCH_HDR_NTOH((h).hdr_match); \
+    (h).hdr_frag_length = ntoh64((h).hdr_frag_length); \
+    } while (0)
+
+#define MCA_PML_GEN2_RNDV_HDR_HTON(h) \
+    do { \
+    MCA_PML_GEN2_MATCH_HDR_HTON((h).hdr_match); \
+    (h).hdr_frag_length = hton64((h).hdr_frag_length); \
+    } while (0) 
+
+/**
+ *  Header for subsequent fragments.
+ */
+struct mca_pml_ob1_frag_hdr_t {
+    mca_pml_ob1_common_hdr_t hdr_common; /**< common attributes */
+    uint64_t hdr_frag_length;                /**< fragment length */
+    uint64_t hdr_frag_offset;                /**< offset into message */
+    ompi_ptr_t hdr_src_ptr;                  /**< pointer to source fragment */
+    ompi_ptr_t hdr_dst_ptr;                  /**< pointer to matched receive */
+};
+typedef struct mca_pml_ob1_frag_hdr_t mca_pml_ob1_frag_hdr_t;
+
+#define MCA_PML_GEN2_FRAG_HDR_NTOH(h) \
+    do { \
+    MCA_PML_GEN2_COMMON_HDR_NTOH((h).hdr_common); \
+    (h).hdr_frag_length = ntoh64((h).hdr_frag_length); \
+    (h).hdr_frag_offset = ntoh64((h).hdr_frag_offset); \
+    } while (0)
+
+#define MCA_PML_GEN2_FRAG_HDR_HTON(h) \
+    do { \
+    MCA_PML_GEN2_COMMON_HDR_HTON((h).hdr_common); \
+    (h).hdr_frag_length = hton64((h).hdr_frag_length); \
+    (h).hdr_frag_offset = hton64((h).hdr_frag_offset); \
+    } while (0)
+
+
+/**
+ *  Header used to acknowledgment outstanding fragment(s).
+ */
+struct mca_pml_ob1_ack_hdr_t {
+    mca_pml_ob1_common_hdr_t hdr_common; /**< common attributes */
+    ompi_ptr_t hdr_src_ptr;                   /**< source fragment */
+    ompi_ptr_t hdr_dst_match;                 /**< matched receive request */
+    ompi_ptr_t hdr_dst_addr;                  /**< posted receive buffer */
+    uint64_t   hdr_dst_size;                  /**< size of posted buffer */
+    /* sequence range? */
+};
+typedef struct mca_pml_ob1_ack_hdr_t mca_pml_ob1_ack_hdr_t;
+
+#define MCA_PML_GEN2_ACK_HDR_NTOH(h) \
+    do { \
+    MCA_PML_GEN2_COMMON_HDR_NTOH(h.hdr_common); \
+    (h).hdr_dst_size = ntoh64((h).hdr_dst_size); \
+    } while (0)
+
+#define MCA_PML_GEN2_ACK_HDR_HTON(h) \
+    do { \
+    MCA_PML_GEN2_COMMON_HDR_HTON((h).hdr_common); \
+    (h).hdr_dst_size = hton64((h).hdr_dst_size); \
+    } while (0) 
+
+/**
+ * Union of defined hdr types.
+ */
+union mca_pml_ob1_hdr_t {
+    mca_pml_ob1_common_hdr_t hdr_common;
+    mca_pml_ob1_match_hdr_t hdr_match;
+    mca_pml_ob1_rendezvous_hdr_t hdr_rndv;
+    mca_pml_ob1_frag_hdr_t hdr_frag;
+    mca_pml_ob1_ack_hdr_t hdr_ack;
+};
+typedef union mca_pml_ob1_hdr_t mca_pml_ob1_hdr_t;
+
+
+#endif

src/mca/pml/ob1/pml_ob1_iprobe.c

@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+#include "request/request.h"
+#include "pml_ob1_recvreq.h"
+
+
+int mca_pml_ob1_iprobe(int src,
+                       int tag,
+                       struct ompi_communicator_t *comm,
+                       int *matched, ompi_status_public_t * status)
+{
+    int rc;
+    mca_pml_ob1_recv_request_t recvreq;
+
+    OBJ_CONSTRUCT( &recvreq, mca_pml_ob1_recv_request_t );
+    recvreq.req_recv.req_base.req_ompi.req_type = OMPI_REQUEST_PML;
+    recvreq.req_recv.req_base.req_type = MCA_PML_REQUEST_IPROBE;
+
+    MCA_PML_GEN2_RECV_REQUEST_INIT(&recvreq, NULL, 0, &ompi_mpi_char, src, tag, comm, true);
+    MCA_PML_GEN2_RECV_REQUEST_START(&recvreq);
+
+    if( recvreq.req_recv.req_base.req_ompi.req_complete == true ) {
+        if( NULL != status ) {
+            *status = recvreq.req_recv.req_base.req_ompi.req_status;
+        }
+        *matched = 1;
+    } else {
+        *matched = 0;
+        ompi_progress();
+    }
+    MCA_PML_BASE_RECV_REQUEST_FINI( &recvreq.req_recv );
+    return rc;
+}
+
+
+int mca_pml_ob1_probe(int src,
+                      int tag,
+                      struct ompi_communicator_t *comm,
+                      ompi_status_public_t * status)
+{
+    mca_pml_ob1_recv_request_t recvreq;
+
+    OBJ_CONSTRUCT( &recvreq, mca_pml_ob1_recv_request_t );
+    recvreq.req_recv.req_base.req_ompi.req_type = OMPI_REQUEST_PML;
+    recvreq.req_recv.req_base.req_type = MCA_PML_REQUEST_PROBE;
+
+    MCA_PML_GEN2_RECV_REQUEST_INIT(&recvreq, NULL, 0, &ompi_mpi_char, src, tag, comm, true);
+    MCA_PML_GEN2_RECV_REQUEST_START(&recvreq);
+
+    if (recvreq.req_recv.req_base.req_ompi.req_complete == false) {
+        /* give up and sleep until completion */
+        if (ompi_using_threads()) {
+            ompi_mutex_lock(&ompi_request_lock);
+            ompi_request_waiting++;
+            while (recvreq.req_recv.req_base.req_ompi.req_complete == false)
+                ompi_condition_wait(&ompi_request_cond, &ompi_request_lock);
+            ompi_request_waiting--;
+            ompi_mutex_unlock(&ompi_request_lock);
+        } else {
+            ompi_request_waiting++;
+            while (recvreq.req_recv.req_base.req_ompi.req_complete == false)
+                ompi_condition_wait(&ompi_request_cond, &ompi_request_lock);
+            ompi_request_waiting--;
+        }
+    }
+
+    if (NULL != status) {
+        *status = recvreq.req_recv.req_base.req_ompi.req_status;
+    }
+    MCA_PML_BASE_RECV_REQUEST_FINI( &recvreq.req_recv );
+    return OMPI_SUCCESS;
+}
+

src/mca/pml/ob1/pml_ob1_irecv.c

@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+#include "request/request.h"
+#include "pml_ob1_recvreq.h"
+
+
+int mca_pml_ob1_irecv_init(void *addr,
+                           size_t count,
+                           ompi_datatype_t * datatype,
+                           int src,
+                           int tag,
+                           struct ompi_communicator_t *comm,
+                           struct ompi_request_t **request)
+{
+    int rc;
+    mca_pml_ob1_recv_request_t *recvreq;
+    MCA_PML_GEN2_RECV_REQUEST_ALLOC(recvreq, rc);
+    if (NULL == recvreq)
+        return rc;
+
+    MCA_PML_GEN2_RECV_REQUEST_INIT(recvreq,
+                                   addr,
+                                   count, datatype, src, tag, comm, true);
+
+    *request = (ompi_request_t *) recvreq;
+    return OMPI_SUCCESS;
+}
+
+int mca_pml_ob1_irecv(void *addr,
+                      size_t count,
+                      ompi_datatype_t * datatype,
+                      int src,
+                      int tag,
+                      struct ompi_communicator_t *comm,
+                      struct ompi_request_t **request)
+{
+    int rc;
+
+    mca_pml_ob1_recv_request_t *recvreq;
+    MCA_PML_GEN2_RECV_REQUEST_ALLOC(recvreq, rc);
+    if (NULL == recvreq)
+        return rc;
+
+    MCA_PML_GEN2_RECV_REQUEST_INIT(recvreq,
+                                   addr,
+                                   count, datatype, src, tag, comm, false);
+
+    MCA_PML_GEN2_RECV_REQUEST_START(recvreq);
+    *request = (ompi_request_t *) recvreq;
+    return OMPI_SUCCESS;
+}
+
+
+int mca_pml_ob1_recv(void *addr,
+                     size_t count,
+                     ompi_datatype_t * datatype,
+                     int src,
+                     int tag,
+                     struct ompi_communicator_t *comm,
+                     ompi_status_public_t * status)
+{
+    int rc;
+    mca_pml_ob1_recv_request_t *recvreq;
+    MCA_PML_GEN2_RECV_REQUEST_ALLOC(recvreq, rc);
+    if (NULL == recvreq)
+        return rc;
+
+    MCA_PML_GEN2_RECV_REQUEST_INIT(recvreq,
+                                   addr,
+                                   count, datatype, src, tag, comm, false);
+
+    MCA_PML_GEN2_RECV_REQUEST_START(recvreq);
+    if (recvreq->req_recv.req_base.req_ompi.req_complete == false) {
+        /* give up and sleep until completion */
+        if (ompi_using_threads()) {
+            ompi_mutex_lock(&ompi_request_lock);
+            ompi_request_waiting++;
+            while (recvreq->req_recv.req_base.req_ompi.req_complete == false)
+                ompi_condition_wait(&ompi_request_cond, &ompi_request_lock);
+            ompi_request_waiting--;
+            ompi_mutex_unlock(&ompi_request_lock);
+        } else {
+            ompi_request_waiting++;
+            while (recvreq->req_recv.req_base.req_ompi.req_complete == false)
+                ompi_condition_wait(&ompi_request_cond, &ompi_request_lock);
+            ompi_request_waiting--;
+        }
+    }
+
+    if (NULL != status) {  /* return status */
+        *status = recvreq->req_recv.req_base.req_ompi.req_status;
+    }
+    rc = recvreq->req_recv.req_base.req_ompi.req_status.MPI_ERROR;
+    OBJ_RELEASE(recvreq);
+    return rc;
+}
+

src/mca/pml/ob1/pml_ob1_isend.c

@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include "pml_ob1.h"
+#include "pml_ob1_proc.h"
+#include "pml_ob1_sendreq.h"
+#include "pml_ob1_recvreq.h"
+
+
+int mca_pml_ob1_isend_init(void *buf,
+                           size_t count,
+                           ompi_datatype_t * datatype,
+                           int dst,
+                           int tag,
+                           mca_pml_base_send_mode_t sendmode,
+                           ompi_communicator_t * comm,
+                           ompi_request_t ** request)
+{
+    int rc;
+
+    mca_pml_ob1_send_request_t *sendreq;
+    MCA_PML_GEN2_SEND_REQUEST_ALLOC(comm, dst, sendreq, rc);
+    if (rc != OMPI_SUCCESS)
+        return rc;
+
+    MCA_PML_GEN2_SEND_REQUEST_INIT(sendreq,
+                                   buf,
+                                   count,
+                                   datatype,
+                                   dst, tag,
+                                   comm, sendmode, true);
+
+    *request = (ompi_request_t *) sendreq;
+    return OMPI_SUCCESS;
+}
+
+
+int mca_pml_ob1_isend(void *buf,
+                      size_t count,
+                      ompi_datatype_t * datatype,
+                      int dst,
+                      int tag,
+                      mca_pml_base_send_mode_t sendmode,
+                      ompi_communicator_t * comm,
+                      ompi_request_t ** request)
+{
+    int rc;
+    mca_pml_ob1_send_request_t *sendreq;
+    MCA_PML_GEN2_SEND_REQUEST_ALLOC(comm, dst, sendreq, rc);
+    if (rc != OMPI_SUCCESS)
+        return rc;
+
+    MCA_PML_GEN2_SEND_REQUEST_INIT(sendreq,
+                                   buf,
+                                   count,
+                                   datatype,
+                                   dst, tag,
+                                   comm, sendmode, false);
+
+    MCA_PML_GEN2_SEND_REQUEST_START(sendreq, rc);
+    *request = (ompi_request_t *) sendreq;
+    return rc;
+}
+
+
+int mca_pml_ob1_send(void *buf,
+                     size_t count,
+                     ompi_datatype_t * datatype,
+                     int dst,
+                     int tag,
+                     mca_pml_base_send_mode_t sendmode,
+                     ompi_communicator_t * comm)
+{
+    int rc;
+    mca_pml_ob1_send_request_t *sendreq;
+    MCA_PML_GEN2_SEND_REQUEST_ALLOC(comm, dst, sendreq, rc);
+    if (rc != OMPI_SUCCESS)
+        return rc;
+
+    MCA_PML_GEN2_SEND_REQUEST_INIT(sendreq,
+                                   buf,
+                                   count,
+                                   datatype,
+                                   dst, tag,
+                                   comm, sendmode, false);
+
+    MCA_PML_GEN2_SEND_REQUEST_START(sendreq, rc);
+    if (rc != OMPI_SUCCESS) {
+        MCA_PML_GEN2_FREE((ompi_request_t **) & sendreq);
+        return rc;
+    }
+
+    if (sendreq->req_send.req_base.req_ompi.req_complete == false) {
+        /* give up and sleep until completion */
+        if (ompi_using_threads()) {
+            ompi_mutex_lock(&ompi_request_lock);
+            ompi_request_waiting++;
+            while (sendreq->req_send.req_base.req_ompi.req_complete == false)
+                ompi_condition_wait(&ompi_request_cond, &ompi_request_lock);
+            ompi_request_waiting--;
+            ompi_mutex_unlock(&ompi_request_lock);
+        } else {
+            ompi_request_waiting++;
+            while (sendreq->req_send.req_base.req_ompi.req_complete == false)
+                ompi_condition_wait(&ompi_request_cond, &ompi_request_lock);
+            ompi_request_waiting--;
+        }
+    }
+
+    /* return request to pool */
+    MCA_PML_GEN2_FREE((ompi_request_t **) & sendreq);
+    return OMPI_SUCCESS;
+}
+

src/mca/pml/ob1/pml_ob1_match.c

@@ -0,0 +1,592 @@
+/** @file */
+
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+#include <stdio.h>
+
+#include "class/ompi_list.h"
+#include "threads/mutex.h"
+#include "include/constants.h"
+#include "communicator/communicator.h"
+#include "pml_ob1.h"
+#include "pml_ob1_comm.h"
+#include "pml_ob1_recvfrag.h"
+#include "pml_ob1_recvreq.h"
+#include "pml_ob1_hdr.h"
+#include "pml_ob1_match.h"
+
+
+/**
+ * Try and match the incoming message fragment to the list of
+ * "wild" receives
+ *
+ * @param hdr Matching data from recived fragment (IN)
+ *
+ * @param pml_comm Pointer to the communicator structure used for
+ * matching purposes. (IN)
+ *
+ * @return Matched receive
+ *
+ * This routine assumes that the appropriate matching locks are
+ * set by the upper level routine.
+ */
+
+#define MCA_PML_GEN2_CHECK_WILD_RECEIVES_FOR_MATCH(hdr,comm,proc,return_match) \
+do { \
+    /* local parameters */ \
+    ompi_list_t* wild_receives = &comm->wild_receives; \
+    mca_pml_ob1_recv_request_t *wild_recv; \
+    int frag_tag,recv_tag; \
+ \
+    /* initialization */ \
+    frag_tag=hdr->hdr_tag; \
+ \
+    /* \
+     * Loop over the wild irecvs - no need to lock, the upper level \
+     * locking is protecting from having other threads trying to \
+     * change this list. \
+     */ \
+    for(wild_recv = (mca_pml_ob1_recv_request_t *)  \
+            ompi_list_get_first(wild_receives); \
+            wild_recv != (mca_pml_ob1_recv_request_t *) \
+            ompi_list_get_end(wild_receives); \
+            wild_recv = (mca_pml_ob1_recv_request_t *)  \
+            ((ompi_list_item_t *)wild_recv)->ompi_list_next) { \
+ \
+        recv_tag = wild_recv->req_recv.req_base.req_tag; \
+        if (  \
+                /* exact tag match */ \
+                (frag_tag == recv_tag) || \
+                /* wild tag match - negative tags (except for \
+                 * OMPI_ANY_TAG) are reserved for internal use, and will \
+                 * not be matched with OMPI_ANY_TAG */ \
+                ( (recv_tag == OMPI_ANY_TAG) && (0 <= frag_tag) )  ) \
+ \
+        { \
+            /* \
+             * Mark that this is the matching irecv, and go to process it. \
+             */ \
+            return_match = wild_recv; \
+ \
+            /* remove this irecv from the postd wild ireceive list */ \
+            ompi_list_remove_item(wild_receives, \
+                    (ompi_list_item_t *)wild_recv); \
+\
+            /* found match - no need to continue */ \
+            break; \
+        } \
+    } \
+} while(0)
+
+
+/**
+ * Try and match the incoming message fragment to the list of
+ * "specific" receives
+ *
+ * @param hdr Matching data from recived fragment (IN)
+ *
+ * @param comm Pointer to the communicator structure used for
+ * matching purposes. (IN)
+ *
+ * @return Matched receive
+ *
+ * This routine assumes that the appropriate matching locks are
+ * set by the upper level routine.
+ */
+#define MCA_PML_GEN2_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr,comm,proc,return_match) \
+do { \
+    /* local variables */ \
+    ompi_list_t* specific_receives = &proc->specific_receives; \
+    mca_pml_ob1_recv_request_t *specific_recv; \
+    int recv_tag,frag_tag; \
+ \
+    /* initialization */ \
+    frag_tag=hdr->hdr_tag; \
+ \
+    /* \
+     * Loop over the specific irecvs. \
+     */ \
+    for(specific_recv = (mca_pml_ob1_recv_request_t *)  \
+            ompi_list_get_first(specific_receives); \
+            specific_recv != (mca_pml_ob1_recv_request_t *) \
+            ompi_list_get_end(specific_receives); \
+            specific_recv = (mca_pml_ob1_recv_request_t *)  \
+            ((ompi_list_item_t *)specific_recv)->ompi_list_next) { \
+        /* \
+         * Check for a match \
+         */ \
+        recv_tag = specific_recv->req_recv.req_base.req_tag; \
+        if ( (frag_tag == recv_tag) || \
+             ( (recv_tag == OMPI_ANY_TAG) && (0 <= frag_tag) ) ) { \
+ \
+            /* \
+             * Match made \
+             */ \
+            return_match = specific_recv; \
+ \
+            /* remove descriptor from posted specific ireceive list */ \
+            ompi_list_remove_item(specific_receives, \
+                    (ompi_list_item_t *)specific_recv); \
+ \
+            break; \
+        } \
+    } \
+} while(0)
+
+/**
+ * Try and match the incoming message fragment to the list of
+ * "wild" receives and "specific" receives.  Used when both types
+ * of receives have been posted,  i.e. when we need to coordinate
+ * between multiple lists to make sure ordered delivery occurs.
+ *
+ * @param hdr Matching data from recived fragment (IN)
+ *
+ * @param comm Pointer to the communicator structure used for
+ * matching purposes. (IN)
+ *
+ * @return Matched receive
+ *
+ * This routine assumes that the appropriate matching locks are
+ * set by the upper level routine.
+ */
+
+#define MCA_PML_GEN2_CHECK_SPECIFIC_AND_WILD_RECEIVES_FOR_MATCH( \
+    hdr,comm,proc,return_match) \
+do {  \
+    /* local variables */  \
+    mca_pml_ob1_recv_request_t *specific_recv, *wild_recv; \
+    mca_ptl_sequence_t wild_recv_seq, specific_recv_seq;  \
+    int frag_tag, wild_recv_tag, specific_recv_tag;  \
+  \
+    /* initialization */  \
+    frag_tag=hdr->hdr_tag;  \
+  \
+    /*  \
+     * We know that when this is called, both specific and wild irecvs  \
+     *  have been posted.  \
+     */  \
+    specific_recv = (mca_pml_ob1_recv_request_t *)   \
+            ompi_list_get_first(&(proc)->specific_receives);  \
+    wild_recv = (mca_pml_ob1_recv_request_t *)  \
+            ompi_list_get_first(&comm->wild_receives);  \
+  \
+    specific_recv_seq = specific_recv->req_recv.req_base.req_sequence;  \
+    wild_recv_seq = wild_recv->req_recv.req_base.req_sequence;  \
+  \
+    while (true) {  \
+        if (wild_recv_seq < specific_recv_seq) {  \
+            /*  \
+             * wild recv is earlier than the specific one.  \
+             */  \
+            /*  \
+             * try and match  \
+             */  \
+            wild_recv_tag = wild_recv->req_recv.req_base.req_tag;  \
+            if ( (frag_tag == wild_recv_tag) ||  \
+                 ( (wild_recv_tag == OMPI_ANY_TAG) && (0 <= frag_tag) ) ) {  \
+                /*  \
+                 * Match made  \
+                 */  \
+                return_match=wild_recv;  \
+  \
+                /* remove this recv from the wild receive queue */  \
+                ompi_list_remove_item(&comm->wild_receives,  \
+                        (ompi_list_item_t *)wild_recv);  \
+                break;  \
+            }  \
+  \
+            /*  \
+             * No match, go to the next.  \
+             */  \
+            wild_recv=(mca_pml_ob1_recv_request_t *)  \
+                ((ompi_list_item_t *)wild_recv)->ompi_list_next;  \
+  \
+            /*  \
+             * If that was the last wild one, just look at the  \
+             * rest of the specific ones.  \
+             */  \
+            if (wild_recv == (mca_pml_ob1_recv_request_t *)  \
+                    ompi_list_get_end(&comm->wild_receives) )   \
+            {   \
+                MCA_PML_GEN2_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr, comm, proc, return_match);  \
+                break;  \
+            }  \
+  \
+            /*  \
+             * Get the sequence number for this recv, and go  \
+             * back to the top of the loop.  \
+             */  \
+            wild_recv_seq = wild_recv->req_recv.req_base.req_sequence;  \
+  \
+        } else {  \
+            /*  \
+             * specific recv is earlier than the wild one.  \
+             */  \
+            specific_recv_tag=specific_recv->req_recv.req_base.req_tag;  \
+            if ( (frag_tag == specific_recv_tag) || \
+                 ( (specific_recv_tag == OMPI_ANY_TAG) && (0<=frag_tag)) )   \
+            {  \
+                /*  \
+                 * Match made  \
+                 */  \
+                return_match = specific_recv;  \
+                /* remove descriptor from specific receive list */  \
+                ompi_list_remove_item(&(proc)->specific_receives,  \
+                    (ompi_list_item_t *)specific_recv);  \
+                break; \
+            }  \
+  \
+            /*  \
+             * No match, go on to the next specific irecv.  \
+             */  \
+            specific_recv = (mca_pml_ob1_recv_request_t *)  \
+                ((ompi_list_item_t *)specific_recv)->ompi_list_next;  \
+  \
+            /*  \
+             * If that was the last specific irecv, process the  \
+             * rest of the wild ones.  \
+             */  \
+            if (specific_recv == (mca_pml_ob1_recv_request_t *)  \
+                    ompi_list_get_end(&(proc)->specific_receives))  \
+            {  \
+                MCA_PML_GEN2_CHECK_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, return_match);  \
+                break; \
+            }  \
+            /*  \
+             * Get the sequence number for this recv, and go  \
+             * back to the top of the loop.  \
+             */ \
+            specific_recv_seq = specific_recv->req_recv.req_base.req_sequence;  \
+        }  \
+    }  \
+} while(0)
+
+
+/*
+ * Specialized matching routines for internal use only.
+ */
+
+static bool mca_pml_ob1_check_cantmatch_for_match(
+    ompi_list_t *additional_matches,
+    mca_pml_ob1_comm_t* comm,
+    mca_pml_ob1_comm_proc_t *proc);
+
+
+/**
+ * RCS/CTS receive side matching
+ *
+ * @param hdr list of parameters needed for matching
+ *                    This list is also embeded in frag_desc,
+ *                    but this allows to save a memory copy when
+ *                    a match is made in this routine. (IN)
+ * @param frag_desc   pointer to receive fragment which we want
+ *                    to match (IN/OUT).  If a match is not made,
+ *                    hdr is copied to frag_desc.
+ * @param match_made  parameter indicating if we matched frag_desc/
+ *                    hdr (OUT)
+ * @param additional_matches  if a match is made with frag_desc, we
+ *                    may be able to match fragments that previously
+ *                    have arrived out-of-order.  If this is the
+ *                    case, the associated fragment descriptors are
+ *                    put on this list for further processing. (OUT)
+ *
+ * @return OMPI error code
+ *
+ * This routine is used to try and match a newly arrived message fragment
+ *   to pre-posted receives.  The following assumptions are made
+ *   - fragments are received out of order
+ *   - for long messages, e.g. more than one fragment, a RTS/CTS algorithm
+ *       is used.
+ *   - 2nd and greater fragments include a receive descriptor pointer
+ *   - fragments may be dropped
+ *   - fragments may be corrupt
+ *   - this routine may be called simultaneously by more than one thread
+ */
+int mca_pml_ob1_match(
+    mca_bmi_base_module_t* bmi,
+    mca_pml_ob1_match_hdr_t *hdr,
+    mca_bmi_base_segment_t* segments,
+    size_t num_segments)
+{
+    /* local variables */
+    uint16_t next_msg_seq_expected, frag_msg_seq;
+    ompi_communicator_t *comm_ptr;
+    mca_pml_ob1_recv_request_t *matched_receive = NULL;
+    mca_pml_ob1_comm_t *comm;
+    mca_pml_ob1_comm_proc_t *proc;
+    bool additional_match=false;
+    ompi_list_t additional_matches;
+    int rc;
+
+    /* communicator pointer */
+    comm_ptr=ompi_comm_lookup(hdr->hdr_contextid);
+    comm=(mca_pml_ob1_comm_t *)comm_ptr->c_pml_comm;
+
+    /* source sequence number */
+    frag_msg_seq = hdr->hdr_msg_seq;
+    proc = comm->procs + hdr->hdr_src;
+
+    /* get next expected message sequence number - if threaded
+     * run, lock to make sure that if another thread is processing 
+     * a frag from the same message a match is made only once.
+     * Also, this prevents other posted receives (for a pair of
+     * end points) from being processed, and potentially "loosing"
+     * the fragment.
+     */
+    OMPI_THREAD_LOCK(&comm->matching_lock);
+
+    /* get sequence number of next message that can be processed */
+    next_msg_seq_expected = (uint16_t)proc->expected_sequence;
+    if (frag_msg_seq == next_msg_seq_expected) {
+
+        /*
+         * This is the sequence number we were expecting,
+         * so we can try matching it to already posted
+         * receives.
+         */
+
+        /* We're now expecting the next sequence number. */
+        (proc->expected_sequence)++;
+
+        /*
+         * figure out what sort of matching logic to use, if need to
+         *   look only at "specific" receives, or "wild" receives,
+         *   or if we need to traverse both sets at the same time.
+         */
+        if (ompi_list_get_size(&proc->specific_receives) == 0 ){
+            /*
+             * There are only wild irecvs, so specialize the algorithm.
+             */
+            MCA_PML_GEN2_CHECK_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, matched_receive);
+    
+        } else if (ompi_list_get_size(&comm->wild_receives) == 0 ) {
+            /*
+             * There are only specific irecvs, so specialize the algorithm.
+             */
+            MCA_PML_GEN2_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr, comm, proc, matched_receive);
+        } else {
+            /*
+             * There are some of each.
+             */
+            MCA_PML_GEN2_CHECK_SPECIFIC_AND_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, matched_receive);
+        }
+
+        /* if match found, process data */
+        if (matched_receive) {
+
+            /* set length of incoming message */
+            matched_receive->req_recv.req_bytes_packed = hdr->hdr_msg_length;
+
+            /*
+             * update delivered sequence number information, if needed.
+             */
+            if( (matched_receive->req_recv.req_base.req_type == MCA_PML_REQUEST_PROBE) ) {
+                /* Match a probe, rollback the next expected sequence number */
+                (proc->expected_sequence)--;
+            }
+        } else {
+
+            /* if no match found, place on unexpected queue */
+            mca_pml_ob1_recv_frag_t* frag;
+            MCA_PML_GEN2_RECV_FRAG_ALLOC(frag, rc);
+            if(OMPI_SUCCESS != rc) {
+                OMPI_THREAD_UNLOCK(&pml_comm->matching_lock);
+                return rc;
+            }
+            MCA_PML_GEN2_RECV_FRAG_INIT(frag,bmi,hdr,segments,num_segments);
+            ompi_list_append( &proc->unexpected_frags, (ompi_list_item_t *)frag );
+        }
+
+        /* 
+         * Now that new message has arrived, check to see if
+         *   any fragments on the c_c_frags_cant_match list
+         *   may now be used to form new matchs
+         */
+        if (0 < ompi_list_get_size(&proc->frags_cant_match)) {
+            additional_match = mca_pml_ob1_check_cantmatch_for_match(&additional_matches,comm,proc);
+        }
+
+    } else {
+
+        /*
+         * This message comes after the next expected, so it
+         * is ahead of sequence.  Save it for later.
+         */
+        mca_pml_ob1_recv_frag_t* frag;
+        MCA_PML_GEN2_RECV_FRAG_ALLOC(frag, rc);
+        if(OMPI_SUCCESS != rc) {
+            OMPI_THREAD_UNLOCK(&pml_comm->matching_lock);
+            return rc;
+        }
+        MCA_PML_GEN2_RECV_FRAG_INIT(frag,bmi,hdr,segments,num_segments);
+        ompi_list_append(&proc->frags_cant_match, (ompi_list_item_t *)frag);
+
+    }
+    OMPI_THREAD_UNLOCK(&pml_comm->matching_lock);
+
+
+    /* release matching lock before processing fragment */
+    if(matched_receive != NULL) {
+        mca_pml_ob1_recv_request_progress(matched_receive,bmi,segments,num_segments);
+    } else {
+        ompi_output(0, "match not found\n");
+    }
+    if(additional_match) {
+        ompi_list_item_t* item;
+        while(NULL != (item = ompi_list_remove_first(&additional_matches))) {
+#if 0
+            mca_pml_ob1_recv_frag_t* frag = (mca_pml_ob1_recv_frag_t*)item;
+            mca_pml_ob1_recv_request_progress(frag->request,frag->bmi,frag->segments,frag->num_segments);
+            MCA_PML_GEN2_RECV_FRAG_RETURN(frag);
+#endif
+        }
+    }
+    return OMPI_SUCCESS;
+}
+
+
+/**
+ * Scan the list of frags that came in ahead of time to see if any
+ * can be processed at this time.  If they can, try and match the
+ * frags.
+ *
+ * @param additional_matches List to hold new matches with fragments
+ * from the c_frags_cant_match list. (IN/OUT)
+ *
+ * @param pml_comm Pointer to the communicator structure used for
+ * matching purposes. (IN)
+ *
+ * This routine assumes that the appropriate matching locks are
+ * set by the upper level routine.
+ */
+
+static bool mca_pml_ob1_check_cantmatch_for_match(
+    ompi_list_t *additional_matches,
+    mca_pml_ob1_comm_t* comm,
+    mca_pml_ob1_comm_proc_t *proc)
+{
+    /* local parameters */
+    int match_found;
+    uint16_t next_msg_seq_expected, frag_seq;
+    mca_pml_ob1_recv_frag_t *frag_desc;
+    mca_pml_ob1_recv_request_t *matched_receive = NULL;
+    bool match_made = false;
+
+    /*
+     * Loop over all the out of sequence messages.  No ordering is assumed
+     * in the c_frags_cant_match list.
+     */
+
+    match_found = 1;
+    while ((0 < ompi_list_get_size(&proc->frags_cant_match)) && match_found) {
+
+        /* initialize match flag for this search */
+        match_found = 0;
+
+        /* get sequence number of next message that can be processed */
+        next_msg_seq_expected = proc->expected_sequence;
+
+        /* search the list for a fragment from the send with sequence
+         * number next_msg_seq_expected
+         */
+        for(frag_desc = (mca_pml_ob1_recv_frag_t *) 
+            ompi_list_get_first(&proc->frags_cant_match);
+            frag_desc != (mca_pml_ob1_recv_frag_t *)
+            ompi_list_get_end(&proc->frags_cant_match);
+            frag_desc = (mca_pml_ob1_recv_frag_t *) 
+            ompi_list_get_next(frag_desc))
+        {
+            /*
+             * If the message has the next expected seq from that proc...
+             */
+            frag_seq=frag_desc->hdr.hdr_match.hdr_msg_seq;
+            if (frag_seq == next_msg_seq_expected) {
+                mca_pml_ob1_match_hdr_t* hdr = &frag_desc->hdr.hdr_match;
+
+                /* We're now expecting the next sequence number. */
+                (proc->expected_sequence)++;
+
+                /* signal that match was made */
+                match_found = 1;
+
+                /*
+                 * remove frag_desc from list
+                 */
+                ompi_list_remove_item(&proc->frags_cant_match,
+                        (ompi_list_item_t *)frag_desc);
+
+                /*
+                 * figure out what sort of matching logic to use, if need to
+                 *   look only at "specific" receives, or "wild" receives,
+                 *   or if we need to traverse both sets at the same time.
+                 */
+                proc = comm->procs + hdr->hdr_src;
+                if (ompi_list_get_size(&proc->specific_receives) == 0 ) {
+                    /*
+                     * There are only wild irecvs, so specialize the algorithm.
+                     */
+                    MCA_PML_GEN2_CHECK_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, matched_receive);
+                } else if (ompi_list_get_size(&comm->wild_receives) == 0 ) {
+                    /*
+                     * There are only specific irecvs, so specialize the algorithm.
+                     */
+                    MCA_PML_GEN2_CHECK_SPECIFIC_RECEIVES_FOR_MATCH(hdr, comm, proc, matched_receive);
+                } else {
+                    /*
+                     * There are some of each.
+                     */
+                    MCA_PML_GEN2_CHECK_SPECIFIC_AND_WILD_RECEIVES_FOR_MATCH(hdr, comm, proc, matched_receive);
+
+                }
+
+                /* if match found, process data */
+                if (matched_receive) {
+
+                    /* associate the receive descriptor with the fragment
+                     * descriptor */
+                    frag_desc->request=matched_receive;
+
+                    /* add this fragment descriptor to the list of
+                     * descriptors to be processed later
+                     */
+                    if(match_made == false) {
+                        match_made = true;
+                        OBJ_CONSTRUCT(additional_matches, ompi_list_t);
+                    }
+                    ompi_list_append(additional_matches, (ompi_list_item_t *)frag_desc);
+
+                } else {
+    
+                    /* if no match found, place on unexpected queue */
+                    ompi_list_append( &proc->unexpected_frags, (ompi_list_item_t *)frag_desc);
+
+                }
+
+                /* c_frags_cant_match is not an ordered list, so exit loop
+                 * and re-start search for next sequence number */
+                break;
+
+            } /* end if (frag_seq == next_msg_seq_expected) */
+            
+        } /* end for (frag_desc) loop */
+        
+    } /* end while loop */
+
+    return match_made;
+}
+

src/mca/pml/ob1/pml_ob1_match.h

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_PML_GEN2_MATCH_H
+#define MCA_PML_GEN2_MATCH_H
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+struct mca_pml_ob1_recv_frag_t;
+
+
+/**
+ * RCS/CTS receive side matching
+ * Match incoming fragments against posted receives.  Out of order
+ * delivery.
+ * 
+ * @param frag_header (IN)          Header of received fragment.
+ * @param frag_desc (IN)            Received fragment descriptor.
+ * @param match_made (OUT)          Flag indicating wether a match was made.
+ * @param additional_matches (OUT)  List of additional matches 
+ * @return                          OMPI_SUCCESS or error status on failure.
+ */
+OMPI_DECLSPEC int mca_pml_ob1_match(
+    mca_bmi_base_module_t* bmi,
+    mca_pml_ob1_match_hdr_t *hdr,
+    mca_bmi_base_segment_t* segments,
+    size_t num_segments);
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif /* MCA_PML_GEN2_MATCH_H */
+

src/mca/pml/ob1/pml_ob1_proc.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include "include/sys/atomic.h"
+#include "pml_ob1.h"
+#include "pml_ob1_proc.h"
+
+
+static void mca_pml_ob1_proc_construct(mca_pml_ob1_proc_t* proc)
+{
+    proc->proc_ompi = NULL;
+    proc->proc_sequence = 0;
+    OBJ_CONSTRUCT(&proc->proc_lock, ompi_mutex_t);
+    OBJ_CONSTRUCT(&proc->bmi_first, mca_pml_ob1_ep_array_t);
+    OBJ_CONSTRUCT(&proc->bmi_next,  mca_pml_ob1_ep_array_t);
+}
+
+
+static void mca_pml_ob1_proc_destruct(mca_pml_ob1_proc_t* proc)
+{
+    OBJ_DESTRUCT(&proc->proc_lock);
+    OBJ_DESTRUCT(&proc->bmi_first);
+    OBJ_DESTRUCT(&proc->bmi_next);
+}
+
+
+OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_proc_t,
+    ompi_object_t,
+    mca_pml_ob1_proc_construct, 
+    mca_pml_ob1_proc_destruct 
+);
+

src/mca/pml/ob1/pml_ob1_proc.h

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef MCA_PML_PROC_H
+#define MCA_PML_PROC_H
+
+#include "threads/mutex.h"
+#include "communicator/communicator.h"
+#include "group/group.h"
+#include "proc/proc.h"
+#include "pml_ob1_endpoint.h"
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+/**
+ *  Structure associated w/ ompi_proc_t that contains data specific
+ *  to the PML.
+ */
+struct mca_pml_proc_t {
+   ompi_object_t super;
+   ompi_proc_t *proc_ompi;              /**< back-pointer to ompi_proc_t */
+   ompi_mutex_t proc_lock;              /**< lock to protect against concurrent access */
+   volatile uint32_t proc_sequence;     /**< sequence number for send */
+   mca_pml_ob1_ep_array_t bmi_first;   /**< array of endpoints to use for first fragments */
+   mca_pml_ob1_ep_array_t bmi_next;    /**< array of endpoints to use for remaining fragments */
+};
+typedef struct mca_pml_proc_t mca_pml_ob1_proc_t;
+
+OMPI_COMP_EXPORT OBJ_CLASS_DECLARATION(mca_pml_ob1_proc_t);
+
+
+/**
+ * Return the mca_pml_proc_t instance cached in the communicators local group.
+ * 
+ * @param comm   Communicator
+ * @param rank   Peer rank
+ * @return       mca_pml_proc_t instance
+ */
+
+static inline mca_pml_ob1_proc_t* mca_pml_ob1_proc_lookup_local(ompi_communicator_t* comm, int rank)
+{
+    return comm->c_local_group->grp_proc_pointers[rank]->proc_pml;
+}
+
+/**
+ * Return the mca_pml_proc_t instance cached on the communicators remote group.
+ * 
+ * @param comm   Communicator
+ * @param rank   Peer rank
+ * @return       mca_pml_proc_t instance
+ */
+
+static inline mca_pml_ob1_proc_t* mca_pml_ob1_proc_lookup_remote(ompi_communicator_t* comm, int rank)
+{
+    return comm->c_pml_procs[rank];
+}
+
+/**
+ * Return the mca_bmi_peer_t instance corresponding to the process/bmi combination.
+ * 
+ * @param comm   Communicator
+ * @param rank   Peer rank
+ * @return       mca_pml_proc_t instance
+ */
+
+static inline struct mca_bmi_base_endpoint_t* mca_pml_ob1_proc_lookup_remote_endpoint(
+    ompi_communicator_t* comm, 
+    int rank, 
+    struct mca_bmi_base_module_t* bmi)
+{
+    mca_pml_ob1_proc_t* proc = comm->c_pml_procs[rank];
+    size_t i, size = mca_pml_ob1_ep_array_get_size(&proc->bmi_first);
+    mca_pml_ob1_endpoint_t* endpoint = proc->bmi_first.arr_endpoints;
+    for(i = 0; i < size; i++) {
+        if(endpoint->bmi == bmi) {
+            return endpoint->bmi_endpoint;
+        }
+        endpoint++;
+    }
+    return NULL;
+}
+
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif
+

src/mca/pml/ob1/pml_ob1_progress.c

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include "pml_ob1.h"
+#include "pml_ob1_sendreq.h"
+
+
+int mca_pml_ob1_progress(void)
+{
+    size_t i;
+    int count = 0;
+
+    /*
+     * Progress each of the PTL modules
+     */
+    for(i=0; i<mca_pml_ob1.num_bmi_progress; i++) {
+        int rc = mca_pml_ob1.bmi_progress[i]();
+        if(rc > 0) {
+            count += rc;
+        }
+    }
+    return count;
+}
+

src/mca/pml/ob1/pml_ob1_recvfrag.c

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+/**
+ * @file
+ */
+
+#include "ompi_config.h"
+
+#include "mca/pml/pml.h"
+#include "pml_ob1_recvfrag.h"
+#include "pml_ob1_recvreq.h"
+#include "pml_ob1_proc.h"
+#include "pml_ob1_match.h"
+
+
+OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_recv_frag_t,
+    ompi_list_item_t,
+    NULL,
+    NULL
+);
+
+
+
+
+void mca_pml_ob1_recv_callback(
+    mca_bmi_base_module_t* bmi,
+    mca_bmi_base_tag_t tag,
+    mca_bmi_base_descriptor_t* des,
+    void* cbdata)
+{
+    mca_bmi_base_segment_t* segments = des->des_src;
+    mca_pml_ob1_hdr_t* hdr = (mca_pml_ob1_hdr_t*)segments->seg_addr.pval;
+    if(segments->seg_len < sizeof(mca_pml_ob1_common_hdr_t)) {
+        return;
+    }
+
+    switch(hdr->hdr_common.hdr_type) {
+        case MCA_PML_GEN2_HDR_TYPE_MATCH:
+            mca_pml_ob1_match(bmi,&hdr->hdr_match,segments,des->des_src_cnt);
+            break;
+        case MCA_PML_GEN2_HDR_TYPE_RNDV:
+            mca_pml_ob1_match(bmi,&hdr->hdr_match,segments,des->des_src_cnt);
+            break;
+        default:
+            break;
+    }
+}
+                                                                                                           
+

src/mca/pml/ob1/pml_ob1_recvfrag.h

@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ *  @file
+ */
+                                                                                                                                                 
+#ifndef MCA_PML_GEN2_RECVFRAG_H
+#define MCA_PML_GEN2_RECVFRAG_H
+
+#include "mca/bmi/bmi.h"
+#include "pml_ob1_hdr.h"
+
+struct mca_pml_ob1_recv_frag_t {
+    ompi_list_item_t super;
+    mca_bmi_base_module_t* bmi;
+    mca_pml_ob1_hdr_t hdr;
+    mca_bmi_base_segment_t* segments;
+    size_t num_segments;
+    struct mca_pml_ob1_recv_request_t* request;
+};
+typedef struct mca_pml_ob1_recv_frag_t mca_pml_ob1_recv_frag_t;
+
+
+#define MCA_PML_GEN2_RECV_FRAG_ALLOC(frag,rc)  \
+{ \
+ \
+} 
+
+#define MCA_PML_GEN2_RECV_FRAG_INIT(frag,bmi,hdr,segs,cnt)  \
+{ \
+ \
+} 
+
+#define MCA_PML_GEN2_RECV_FRAG_RETURN(frag)  \
+{ \
+ \
+} 
+
+
+/**
+ * Called to attempt a match for new fragments.
+ *
+ * @param bmi (IN)    The PTL pointer
+ * @param frag (IN)   Receive fragment descriptor.
+ * @param hdr (IN)    Header corresponding to the receive fragment.
+ * @return            OMPI_SUCCESS or error status on failure.
+ */
+bool mca_pml_ob1_recv_frag_match( 
+    struct mca_pml_ob1_recv_frag_t* frag
+);
+
+int mca_pml_ob1_recv_frag_matched(
+    struct mca_pml_ob1_recv_frag_t* frag
+);
+
+int mca_pml_ob1_recv_frag_complete(
+    struct mca_bmi_base_module_t* bmi,
+    struct mca_pml_ob1_recv_request_t* req,
+    struct mca_pml_ob1_recv_frag_t* frag
+);
+
+#endif
+

src/mca/pml/ob1/pml_ob1_recvreq.c

@@ -0,0 +1,287 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "pml_ob1_comm.h"
+#include "pml_ob1_recvreq.h"
+#include "pml_ob1_recvfrag.h"
+#include "pml_ob1_sendreq.h"
+
+                                                                                                               
+static mca_pml_ob1_recv_frag_t* mca_pml_ob1_recv_request_match_specific_proc(
+    mca_pml_ob1_recv_request_t* request, mca_pml_ob1_comm_proc_t* proc);
+
+
+static int mca_pml_ob1_recv_request_fini(struct ompi_request_t** request)
+{
+    MCA_PML_GEN2_FINI(request);
+    return OMPI_SUCCESS;
+}
+
+static int mca_pml_ob1_recv_request_free(struct ompi_request_t** request)
+{
+    MCA_PML_GEN2_FREE(request);
+    return OMPI_SUCCESS;
+} 
+
+static int mca_pml_ob1_recv_request_cancel(struct ompi_request_t* ompi_request, int complete)
+{
+    mca_pml_ob1_recv_request_t* request = (mca_pml_ob1_recv_request_t*)ompi_request;
+    mca_pml_ob1_comm_t* comm = request->req_recv.req_base.req_comm->c_pml_comm;
+
+    if( true == ompi_request->req_complete ) { /* way to late to cancel this one */
+       return OMPI_SUCCESS;
+    }
+    
+    /* The rest should be protected behind the match logic lock */
+    OMPI_THREAD_LOCK(&comm->matching_lock);
+    if( OMPI_ANY_TAG == ompi_request->req_status.MPI_TAG ) { /* the match has not been already done */
+       if( request->req_recv.req_base.req_peer == OMPI_ANY_SOURCE ) {
+          ompi_list_remove_item( &comm->wild_receives, (ompi_list_item_t*)request );
+       } else {
+          mca_pml_ob1_comm_proc_t* proc = comm->procs + request->req_recv.req_base.req_peer;
+          ompi_list_remove_item(&proc->specific_receives, (ompi_list_item_t*)request);
+       }
+    }
+    OMPI_THREAD_UNLOCK(&comm->matching_lock);
+    
+    OMPI_THREAD_LOCK(&ompi_request_lock);
+    ompi_request->req_status._cancelled = true;
+    ompi_request->req_complete = true;  /* mark it as completed so all the test/wait  functions
+                                    * on this particular request will finish */
+    /* Now we have a problem if we are in a multi-threaded environment. We shou ld
+     * broadcast the condition on the request in order to allow the other threa ds
+     * to complete their test/wait functions.
+     */
+    if(ompi_request_waiting) {
+       ompi_condition_broadcast(&ompi_request_cond);
+    }
+    OMPI_THREAD_UNLOCK(&ompi_request_lock);
+    return OMPI_SUCCESS;
+}
+
+static void mca_pml_ob1_recv_request_construct(mca_pml_ob1_recv_request_t* request)
+{
+    request->req_recv.req_base.req_type = MCA_PML_REQUEST_RECV;
+    request->req_recv.req_base.req_ompi.req_fini = mca_pml_ob1_recv_request_fini;
+    request->req_recv.req_base.req_ompi.req_free = mca_pml_ob1_recv_request_free;
+    request->req_recv.req_base.req_ompi.req_cancel = mca_pml_ob1_recv_request_cancel;
+}
+
+static void mca_pml_ob1_recv_request_destruct(mca_pml_ob1_recv_request_t* request)
+{
+}
+
+
+OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_recv_request_t,
+    mca_pml_base_recv_request_t,
+    mca_pml_ob1_recv_request_construct,
+    mca_pml_ob1_recv_request_destruct);
+
+/*
+ * Update the recv request status to reflect the number of bytes
+ * received and actually delivered to the application. 
+ */
+
+void mca_pml_ob1_recv_request_progress(
+    mca_pml_ob1_recv_request_t* req,
+    mca_bmi_base_module_t* bmi,
+    mca_bmi_base_segment_t* segments,
+    size_t num_segments)
+{
+    size_t bytes_received = 0;
+    size_t bytes_delivered = 0;
+    mca_pml_ob1_hdr_t* hdr = (mca_pml_ob1_hdr_t*)segments->seg_addr.pval;
+
+    switch(hdr->hdr_common.hdr_type) {
+        case MCA_PML_GEN2_HDR_TYPE_MATCH:
+            bytes_received = hdr->hdr_match.hdr_msg_length;
+            break;
+        case MCA_PML_GEN2_HDR_TYPE_RNDV:
+            bytes_received = hdr->hdr_frag.hdr_frag_length;
+            break;
+        default:
+            break;
+    }
+    bytes_delivered = bytes_received;
+
+    OMPI_THREAD_LOCK(&ompi_request_lock);
+    req->req_bytes_received += bytes_received;
+    req->req_bytes_delivered += bytes_delivered;
+    if (req->req_bytes_received >= req->req_recv.req_bytes_packed) {
+        /* initialize request status */
+        req->req_recv.req_base.req_ompi.req_status._count = req->req_bytes_delivered;
+        req->req_recv.req_base.req_pml_complete = true; 
+        req->req_recv.req_base.req_ompi.req_complete = true;
+        if(ompi_request_waiting) {
+            ompi_condition_broadcast(&ompi_request_cond);
+        }
+    }
+    OMPI_THREAD_UNLOCK(&ompi_request_lock);
+}
+
+
+/*
+ * This routine is used to match a posted receive when the source process 
+ * is specified.
+*/
+
+void mca_pml_ob1_recv_request_match_specific(mca_pml_ob1_recv_request_t* request)
+{
+    mca_pml_ob1_comm_t* comm = request->req_recv.req_base.req_comm->c_pml_comm;
+    mca_pml_ob1_comm_proc_t* proc = comm->procs + request->req_recv.req_base.req_peer;
+    mca_pml_ob1_recv_frag_t* frag;
+   
+    /* check for a specific match */
+    OMPI_THREAD_LOCK(&comm->matching_lock);
+
+    /* assign sequence number */
+    request->req_recv.req_base.req_sequence = comm->recv_sequence++;
+
+    if (ompi_list_get_size(&proc->unexpected_frags) > 0 &&
+        (frag = mca_pml_ob1_recv_request_match_specific_proc(request, proc)) != NULL) {
+        OMPI_THREAD_UNLOCK(&comm->matching_lock);
+
+        mca_pml_ob1_recv_request_progress(request,frag->bmi,frag->segments,frag->num_segments);
+        if( !((MCA_PML_REQUEST_IPROBE == request->req_recv.req_base.req_type) ||
+              (MCA_PML_REQUEST_PROBE == request->req_recv.req_base.req_type)) ) {
+            MCA_PML_GEN2_RECV_FRAG_RETURN(frag);
+        }
+        return; /* match found */
+    }
+
+    /* We didn't find any matches.  Record this irecv so we can match 
+     * it when the message comes in.
+    */
+    if(request->req_recv.req_base.req_type != MCA_PML_REQUEST_IPROBE) { 
+        ompi_list_append(&proc->specific_receives, (ompi_list_item_t*)request);
+    }
+    OMPI_THREAD_UNLOCK(&comm->matching_lock);
+}
+
+
+/*
+ * this routine is used to try and match a wild posted receive - where
+ * wild is determined by the value assigned to the source process
+*/
+
+void mca_pml_ob1_recv_request_match_wild(mca_pml_ob1_recv_request_t* request)
+{
+    mca_pml_ob1_comm_t* comm = request->req_recv.req_base.req_comm->c_pml_comm;
+    mca_pml_ob1_comm_proc_t* proc = comm->procs;
+    size_t proc_count = comm->num_procs;
+    size_t i;
+
+    /*
+     * Loop over all the outstanding messages to find one that matches.
+     * There is an outer loop over lists of messages from each
+     * process, then an inner loop over the messages from the
+     * process.
+    */
+    OMPI_THREAD_LOCK(&pml_comm->c_matching_lock);
+
+    /* assign sequence number */
+    request->req_recv.req_base.req_sequence = comm->recv_sequence++;
+
+    for (i = 0; i < proc_count; i++) {
+        mca_pml_ob1_recv_frag_t* frag;
+
+        /* continue if no frags to match */
+        if (ompi_list_get_size(&proc->unexpected_frags) == 0) {
+            proc++;
+            continue;
+        }
+
+        /* loop over messages from the current proc */
+        if ((frag = mca_pml_ob1_recv_request_match_specific_proc(request, proc)) != NULL) {
+            OMPI_THREAD_UNLOCK(&comm->matching_lock);
+
+            mca_pml_ob1_recv_request_progress(request,frag->bmi,frag->segments,frag->num_segments);
+            if( !((MCA_PML_REQUEST_IPROBE == request->req_recv.req_base.req_type) ||
+                  (MCA_PML_REQUEST_PROBE == request->req_recv.req_base.req_type)) ) {
+                MCA_PML_GEN2_RECV_FRAG_RETURN(frag);
+            }
+            return; /* match found */
+        }
+        proc++;
+    } 
+
+    /* We didn't find any matches.  Record this irecv so we can match to
+     * it when the message comes in.
+    */
+ 
+    if(request->req_recv.req_base.req_type != MCA_PML_REQUEST_IPROBE)
+        ompi_list_append(&comm->wild_receives, (ompi_list_item_t*)request);
+    OMPI_THREAD_UNLOCK(&comm->matching_lock);
+}
+
+
+/*
+ *  this routine tries to match a posted receive.  If a match is found,
+ *  it places the request in the appropriate matched receive list. 
+*/
+
+static mca_pml_ob1_recv_frag_t* mca_pml_ob1_recv_request_match_specific_proc(
+    mca_pml_ob1_recv_request_t* request, 
+    mca_pml_ob1_comm_proc_t* proc)
+{
+    ompi_list_t* unexpected_frags = &proc->unexpected_frags;
+    mca_pml_ob1_recv_frag_t* frag;
+    mca_pml_ob1_match_hdr_t* hdr;
+    int tag = request->req_recv.req_base.req_tag;
+
+    if( OMPI_ANY_TAG == tag ) {
+        for (frag =  (mca_pml_ob1_recv_frag_t*)ompi_list_get_first(unexpected_frags);
+             frag != (mca_pml_ob1_recv_frag_t*)ompi_list_get_end(unexpected_frags);
+             frag =  (mca_pml_ob1_recv_frag_t*)ompi_list_get_next(frag)) {
+            hdr = &(frag->hdr.hdr_match);
+            
+            /* check first frag - we assume that process matching has been done already */
+            if( hdr->hdr_tag >= 0 ) {
+                goto find_fragment;
+            } 
+        }
+    } else {
+        for (frag =  (mca_pml_ob1_recv_frag_t*)ompi_list_get_first(unexpected_frags);
+             frag != (mca_pml_ob1_recv_frag_t*)ompi_list_get_end(unexpected_frags);
+             frag =  (mca_pml_ob1_recv_frag_t*)ompi_list_get_next(frag)) {
+            hdr = &(frag->hdr.hdr_match);
+            
+            /* check first frag - we assume that process matching has been done already */
+            if ( tag == hdr->hdr_tag ) {
+                /* we assume that the tag is correct from MPI point of view (ie. >= 0 ) */
+                goto find_fragment;
+            } 
+        }
+    }
+    return NULL;
+ find_fragment:
+    request->req_recv.req_bytes_packed = hdr->hdr_msg_length;
+    request->req_recv.req_base.req_ompi.req_status.MPI_TAG = hdr->hdr_tag;
+    request->req_recv.req_base.req_ompi.req_status.MPI_SOURCE = hdr->hdr_src;
+
+    if( !((MCA_PML_REQUEST_IPROBE == request->req_recv.req_base.req_type) ||
+          (MCA_PML_REQUEST_PROBE == request->req_recv.req_base.req_type)) ) {
+        ompi_list_remove_item(unexpected_frags, (ompi_list_item_t*)frag);
+        frag->request = request;
+    } 
+    return frag;
+}
+

src/mca/pml/ob1/pml_ob1_recvreq.h

@@ -0,0 +1,163 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef OMPI_PML_GEN2_RECV_REQUEST_H
+#define OMPI_PML_GEN2_RECV_REQUEST_H
+
+#include "pml_ob1.h"
+#include "pml_ob1_proc.h"
+#include "mca/pml/base/pml_base_recvreq.h"
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+struct  mca_pml_ob1_recv_request_t {
+    mca_pml_base_recv_request_t req_recv;
+    size_t req_bytes_received;
+    size_t req_bytes_delivered;
+};
+typedef struct mca_pml_ob1_recv_request_t mca_pml_ob1_recv_request_t;
+
+
+OBJ_CLASS_DECLARATION(mca_pml_ob1_recv_request_t);
+
+
+/**
+ *  Allocate a recv request from the modules free list.
+ *
+ *  @param rc (OUT)  OMPI_SUCCESS or error status on failure.
+ *  @return          Receive request.
+ */
+#define MCA_PML_GEN2_RECV_REQUEST_ALLOC(recvreq, rc)                 \
+    do {                                                             \
+        ompi_list_item_t* item;                                      \
+        rc = OMPI_SUCCESS;                                           \
+        OMPI_FREE_LIST_GET(&mca_pml_ob1.recv_requests, item, rc);   \
+        recvreq = (mca_pml_ob1_recv_request_t*)item;                \
+    } while(0)
+
+
+/**
+ * Initialize a receive request with call parameters.
+ *
+ * @param request (IN)       Receive request.
+ * @param addr (IN)          User buffer.
+ * @param count (IN)         Number of elements of indicated datatype.
+ * @param datatype (IN)      User defined datatype.
+ * @param src (IN)           Source rank w/in the communicator.
+ * @param tag (IN)           User defined tag.
+ * @param comm (IN)          Communicator.
+ * @param persistent (IN)    Is this a ersistent request.
+ */
+#define MCA_PML_GEN2_RECV_REQUEST_INIT(                               \
+    request,                                                          \
+    addr,                                                             \
+    count,                                                            \
+    datatype,                                                         \
+    src,                                                              \
+    tag,                                                              \
+    comm,                                                             \
+    persistent)                                                       \
+{                                                                     \
+    MCA_PML_BASE_RECV_REQUEST_INIT(                                   \
+        &(request)->req_recv,                                         \
+        addr,                                                         \
+        count,                                                        \
+        datatype,                                                     \
+        src,                                                          \
+        tag,                                                          \
+        comm,                                                         \
+        persistent);                                                  \
+}
+
+/**
+ *  Return a recv request to the modules free list.
+ *
+ *  @param request (IN)  Receive request.
+ */
+#define MCA_PML_GEN2_RECV_REQUEST_RETURN(request)                                       \
+    do {                                                                                \
+        MCA_PML_BASE_RECV_REQUEST_FINI(&request->req_recv);                           \
+        OMPI_FREE_LIST_RETURN(&mca_pml_ob1.recv_requests, (ompi_list_item_t*)request); \
+    } while(0)
+
+/**
+ * Attempt to match the request against the unexpected fragment list
+ * for all source ranks w/in the communicator.
+ *
+ * @param request (IN)   Request to match.
+ */
+void mca_pml_ob1_recv_request_match_wild(mca_pml_ob1_recv_request_t* request);
+                                                                                                                                 
+/**
+ * Attempt to match the request against the unexpected fragment list
+ * for a specific source rank.
+ *
+ * @param request (IN)   Request to match.
+ */
+void mca_pml_ob1_recv_request_match_specific(mca_pml_ob1_recv_request_t* request);
+                                                                                                                                 
+/**
+ * Start an initialized request.
+ *
+ * @param request  Receive request.
+ * @return         OMPI_SUCESS or error status on failure.
+ */
+#define MCA_PML_GEN2_RECV_REQUEST_START(request)                                  \
+{                                                                                 \
+    /* init/re-init the request */                                                \
+    (request)->req_bytes_received = 0;                                            \
+    (request)->req_bytes_delivered = 0;                                           \
+    (request)->req_recv.req_base.req_pml_complete = false;                        \
+    (request)->req_recv.req_base.req_ompi.req_complete = false;                   \
+    (request)->req_recv.req_base.req_ompi.req_state = OMPI_REQUEST_ACTIVE;        \
+                                                                                  \
+    /* always set the req_status.MPI_TAG to ANY_TAG before starting the           \
+     * request. This field is used if cancelled to find out if the request        \
+     * has been matched or not.                                                   \
+     */                                                                           \
+    (request)->req_recv.req_base.req_ompi.req_status.MPI_TAG = OMPI_ANY_TAG;      \
+    (request)->req_recv.req_base.req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS;    \
+    (request)->req_recv.req_base.req_ompi.req_status._cancelled = 0;              \
+                                                                                  \
+    /* attempt to match posted recv */                                            \
+    if((request)->req_recv.req_base.req_peer == OMPI_ANY_SOURCE) {                \
+        mca_pml_ob1_recv_request_match_wild(request);                            \
+    } else {                                                                      \
+        mca_pml_ob1_recv_request_match_specific(request);                        \
+    }                                                                             \
+}
+
+
+/**
+ *
+ */
+
+void mca_pml_ob1_recv_request_progress(
+    mca_pml_ob1_recv_request_t* req,
+    mca_bmi_base_module_t* bmi,
+    mca_bmi_base_segment_t* segments,
+    size_t num_segments);
+
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif
+

src/mca/pml/ob1/pml_ob1_sendreq.c

@@ -0,0 +1,285 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+
+/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
+
+#include "ompi_config.h"
+#include "include/constants.h"
+#include "mca/pml/pml.h"
+#include "mca/bmi/bmi.h"
+#include "pml_ob1.h"
+#include "pml_ob1_hdr.h"
+#include "pml_ob1_proc.h"
+#include "pml_ob1_sendreq.h"
+#include "pml_ob1_recvreq.h"
+#include "pml_ob1_endpoint.h"
+
+
+                                                                                                         
+static int mca_pml_ob1_send_request_fini(struct ompi_request_t** request)
+{
+    MCA_PML_GEN2_FINI(request);
+    return OMPI_SUCCESS;
+}
+
+static int mca_pml_ob1_send_request_free(struct ompi_request_t** request)
+{
+    MCA_PML_GEN2_FREE(request);
+    return OMPI_SUCCESS;
+}
+
+static int mca_pml_ob1_send_request_cancel(struct ompi_request_t* request, int complete)
+{
+    /* we dont cancel send requests by now */
+    return OMPI_SUCCESS;
+}
+
+static void mca_pml_ob1_send_request_construct(mca_pml_ob1_send_request_t* req)
+{
+    req->req_send.req_base.req_type = MCA_PML_REQUEST_SEND;
+    req->req_send.req_base.req_ompi.req_fini = mca_pml_ob1_send_request_fini;
+    req->req_send.req_base.req_ompi.req_free = mca_pml_ob1_send_request_free;
+    req->req_send.req_base.req_ompi.req_cancel = mca_pml_ob1_send_request_cancel;
+}
+
+static void mca_pml_ob1_send_request_destruct(mca_pml_ob1_send_request_t* req)
+{
+}
+
+
+OBJ_CLASS_INSTANCE(
+    mca_pml_ob1_send_request_t,
+    mca_pml_base_send_request_t,
+    mca_pml_ob1_send_request_construct,
+    mca_pml_ob1_send_request_destruct);
+
+/**
+ *
+ */
+
+static void mca_pml_ob1_send_completion(
+    mca_bmi_base_module_t* bmi,
+    struct mca_bmi_base_endpoint_t* ep,
+    struct mca_bmi_base_descriptor_t* descriptor,
+    int status)
+{
+    mca_pml_ob1_send_request_t* sendreq = (mca_pml_ob1_send_request_t*)descriptor->des_cbdata;
+    mca_pml_ob1_endpoint_t* ob1_ep = sendreq->req_endpoint;
+
+    OMPI_THREAD_LOCK(&ompi_request_lock);
+    if (sendreq->req_offset == sendreq->req_send.req_bytes_packed) {
+        sendreq->req_send.req_base.req_pml_complete = true;
+        if (sendreq->req_send.req_base.req_ompi.req_complete == false) {
+            sendreq->req_send.req_base.req_ompi.req_status.MPI_SOURCE = sendreq->req_send.req_base.req_comm->c_my_rank;
+            sendreq->req_send.req_base.req_ompi.req_status.MPI_TAG = sendreq->req_send.req_base.req_tag;
+            sendreq->req_send.req_base.req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS;
+            sendreq->req_send.req_base.req_ompi.req_status._count = sendreq->req_send.req_bytes_packed;
+            sendreq->req_send.req_base.req_ompi.req_complete = true;
+            if(ompi_request_waiting) {
+                ompi_condition_broadcast(&ompi_request_cond);
+            }
+        } else if(sendreq->req_send.req_base.req_free_called) {
+            MCA_PML_GEN2_FREE((ompi_request_t**)&sendreq);
+        } else if (sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) {
+            mca_pml_base_bsend_request_fini((ompi_request_t*)sendreq);
+        }
+    } 
+    OMPI_THREAD_UNLOCK(&ompi_request_lock);
+
+    /* check for pending requests that need to be progressed */
+    while(ompi_list_get_size(&mca_pml_ob1.send_pending) != 0) {
+        OMPI_THREAD_LOCK(&mca_pml_ob1.ob1_lock);
+        sendreq = (mca_pml_ob1_send_request_t*)ompi_list_remove_first(&mca_pml_ob1.send_pending);
+        OMPI_THREAD_UNLOCK(&mca_pml_ob1.ob1_lock);
+    }
+
+    /* release NTL resources */
+    if(ob1_ep->bmi_cache == NULL) {
+       ob1_ep->bmi_cache = descriptor;
+    } else {
+       ob1_ep->bmi_free(bmi,descriptor);
+    }
+}
+
+
+/**
+ *  NTL can send directly from user allocated memory.
+ */
+
+int mca_pml_ob1_send_user(
+    mca_pml_ob1_send_request_t* sendreq,
+    mca_pml_ob1_endpoint_t* endpoint)
+{
+    return OMPI_ERROR;
+}
+
+
+/**
+ *  NTL requires "specially" allocated memory. Request a segment that
+ *  is used for initial hdr and any eager data.
+ */
+
+int mca_pml_ob1_send_copy(
+    mca_pml_ob1_send_request_t* sendreq,
+    mca_pml_ob1_endpoint_t* endpoint)
+{
+    mca_bmi_base_descriptor_t* descriptor;
+    mca_bmi_base_segment_t* segment;
+    mca_pml_ob1_hdr_t* hdr;
+    size_t size = sendreq->req_send.req_bytes_packed;
+    int rc;
+
+    /* shortcut for zero byte */
+    if(size == 0) {
+
+        descriptor = endpoint->bmi_cache;
+        if(NULL != descriptor) {
+            endpoint->bmi_cache = NULL;
+        } else {
+            descriptor = endpoint->bmi_alloc(endpoint->bmi, sizeof(mca_pml_ob1_hdr_t));
+            if(NULL == descriptor) {
+                OBJ_RELEASE(sendreq);
+                return OMPI_ERR_OUT_OF_RESOURCE;
+            }
+            descriptor->des_cbfunc = mca_pml_ob1_send_completion;
+        }
+        segment = descriptor->des_src;
+
+        /* build hdr */
+        hdr = (mca_pml_ob1_hdr_t*)segment->seg_addr.pval;
+        hdr->hdr_match.hdr_contextid = sendreq->req_send.req_base.req_comm->c_contextid;
+        hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
+        hdr->hdr_match.hdr_dst = sendreq->req_send.req_base.req_peer;
+        hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
+        hdr->hdr_match.hdr_msg_length = sendreq->req_send.req_bytes_packed;
+        hdr->hdr_match.hdr_msg_seq = sendreq->req_send.req_base.req_sequence;
+
+        /* if an acknowledgment is not required - can get by w/ shorter hdr */
+        if (sendreq->req_send.req_send_mode != MCA_PML_BASE_SEND_SYNCHRONOUS) {
+            hdr->hdr_common.hdr_flags = 0;
+            hdr->hdr_common.hdr_type = MCA_PML_GEN2_HDR_TYPE_MATCH;
+            segment->seg_len = sizeof(mca_pml_ob1_match_hdr_t);
+        } else {
+            hdr->hdr_common.hdr_flags = MCA_PML_GEN2_HDR_FLAGS_ACK;
+            hdr->hdr_common.hdr_type = MCA_PML_GEN2_HDR_TYPE_RNDV;
+            hdr->hdr_rndv.hdr_frag_length = 0;
+            hdr->hdr_rndv.hdr_src_ptr.lval = 0; /* for VALGRIND/PURIFY - REPLACE WITH MACRO */
+            hdr->hdr_rndv.hdr_src_ptr.pval = sendreq;
+            segment->seg_len = sizeof(mca_pml_ob1_rendezvous_hdr_t);
+        }
+        ompi_request_complete((ompi_request_t*)sendreq);
+       
+    } else {
+
+        struct iovec iov;
+        unsigned int iov_count;
+        unsigned int max_data;
+
+        /* determine first fragment size */
+        if(size > endpoint->bmi_eager_limit - sizeof(mca_pml_ob1_hdr_t)) {
+            size = endpoint->bmi_eager_limit - sizeof(mca_pml_ob1_hdr_t);
+        } 
+
+        /* allocate space for hdr + first fragment */
+        descriptor = endpoint->bmi_alloc(endpoint->bmi, size + sizeof(mca_pml_ob1_hdr_t));
+        if(NULL == descriptor) {
+            OBJ_RELEASE(sendreq);
+            return OMPI_ERR_OUT_OF_RESOURCE;
+        }
+        descriptor->des_cbfunc = mca_pml_ob1_send_completion;
+        segment = descriptor->des_src;
+
+        /* build hdr */
+        hdr = (mca_pml_ob1_hdr_t*)segment->seg_addr.pval;
+        hdr->hdr_match.hdr_contextid = sendreq->req_send.req_base.req_comm->c_contextid;
+        hdr->hdr_match.hdr_src = sendreq->req_send.req_base.req_comm->c_my_rank;
+        hdr->hdr_match.hdr_dst = sendreq->req_send.req_base.req_peer;
+        hdr->hdr_match.hdr_tag = sendreq->req_send.req_base.req_tag;
+        hdr->hdr_match.hdr_msg_length = sendreq->req_send.req_bytes_packed;
+        hdr->hdr_match.hdr_msg_seq = sendreq->req_send.req_base.req_sequence;
+
+        /* if an acknowledgment is not required - can get by w/ shorter hdr */
+        if (sendreq->req_send.req_send_mode != MCA_PML_BASE_SEND_SYNCHRONOUS) {
+            hdr->hdr_common.hdr_flags = MCA_PML_GEN2_HDR_FLAGS_ACK;
+            hdr->hdr_common.hdr_type = MCA_PML_GEN2_HDR_TYPE_MATCH;
+
+            /* pack the data into the supplied buffer */
+            iov.iov_base = (unsigned char*)segment->seg_addr.pval + sizeof(mca_pml_ob1_match_hdr_t);
+            iov.iov_len = size;
+            iov_count = 1;
+            max_data = size;
+            if((rc = ompi_convertor_pack(
+                &sendreq->req_send.req_convertor,
+                &iov,
+                &iov_count,
+                &max_data,
+                NULL)) < 0) {
+                endpoint->bmi_free(endpoint->bmi, descriptor);
+                OBJ_RELEASE(sendreq);
+                return rc;
+            }
+           
+            /* update length w/ number of bytes actually packed */
+            segment->seg_len = sizeof(mca_pml_ob1_match_hdr_t) + max_data;
+
+        /* rendezvous header is required */
+        } else {
+            hdr->hdr_common.hdr_flags = MCA_PML_GEN2_HDR_FLAGS_ACK;
+            hdr->hdr_common.hdr_type = MCA_PML_GEN2_HDR_TYPE_RNDV;
+            hdr->hdr_rndv.hdr_src_ptr.lval = 0; /* for VALGRIND/PURIFY - REPLACE WITH MACRO */
+            hdr->hdr_rndv.hdr_src_ptr.pval = sendreq;
+
+            /* pack the data into the supplied buffer */
+            iov.iov_base = (unsigned char*)segment->seg_addr.pval + sizeof(mca_pml_ob1_rendezvous_hdr_t);
+            iov.iov_len = size;
+            iov_count = 1;
+            max_data = size;
+            if((rc = ompi_convertor_pack(
+                &sendreq->req_send.req_convertor,
+                &iov,
+                &iov_count,
+                &max_data,
+                NULL)) < 0) {
+                endpoint->bmi_free(endpoint->bmi, descriptor);
+                OBJ_RELEASE(sendreq);
+                return rc;
+            }
+
+            hdr->hdr_rndv.hdr_frag_length = max_data;
+            segment->seg_len = sizeof(mca_pml_ob1_rendezvous_hdr_t) + max_data;
+        }
+        sendreq->req_offset = max_data;
+        if(sendreq->req_offset == sendreq->req_send.req_bytes_packed) {
+            ompi_request_complete((ompi_request_t*)sendreq);
+        }
+    }
+    descriptor->des_cbdata = sendreq;
+
+    /* send */
+    rc = endpoint->bmi_send(
+        endpoint->bmi, 
+        endpoint->bmi_endpoint, 
+        descriptor,
+        MCA_BMI_TAG_PML);
+    if(OMPI_SUCCESS != rc) {
+        endpoint->bmi_free(endpoint->bmi,descriptor);
+        OBJ_RELEASE(sendreq);
+    }
+    return rc;
+}
+
+

src/mca/pml/ob1/pml_ob1_sendreq.h

@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+/**
+ * @file
+ */
+#ifndef OMPI_PML_GEN2_SEND_REQUEST_H
+#define OMPI_PML_GEN2_SEND_REQUEST_H
+
+#include "mca/bmi/bmi.h"
+#include "mca/pml/base/pml_base_sendreq.h"
+#include "pml_ob1_proc.h"
+#include "pml_ob1_comm.h"
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+
+
+struct mca_pml_ob1_send_request_t {
+    mca_pml_base_send_request_t req_send;
+    mca_pml_ob1_proc_t* req_proc;
+    mca_pml_ob1_endpoint_t* req_endpoint;
+    size_t req_offset;
+};
+typedef struct mca_pml_ob1_send_request_t mca_pml_ob1_send_request_t;
+
+
+OBJ_CLASS_DECLARATION(mca_pml_ob1_send_request_t);
+
+
+#define MCA_PML_GEN2_SEND_REQUEST_ALLOC(                                   \
+    comm,                                                                  \
+    dst,                                                                   \
+    sendreq,                                                               \
+    rc)                                                                    \
+{                                                                          \
+    mca_pml_ob1_proc_t *proc = comm->c_pml_procs[dst];                    \
+    ompi_list_item_t* item;                                                \
+                                                                           \
+    if(NULL == proc) {                                                     \
+        rc = OMPI_ERR_OUT_OF_RESOURCE;                                     \
+    } else {                                                               \
+        rc = OMPI_SUCCESS;                                                 \
+        OMPI_FREE_LIST_WAIT(&mca_pml_ob1.send_requests, item, rc);        \
+        sendreq = (mca_pml_ob1_send_request_t*)item;                      \
+        sendreq->req_proc = proc;                                          \
+    }                                                                      \
+}
+
+
+#define MCA_PML_GEN2_SEND_REQUEST_INIT(                                    \
+    sendreq,                                                               \
+    buf,                                                                   \
+    count,                                                                 \
+    datatype,                                                              \
+    dst,                                                                   \
+    tag,                                                                   \
+    comm,                                                                  \
+    sendmode,                                                              \
+    persistent)                                                            \
+{                                                                          \
+    MCA_PML_BASE_SEND_REQUEST_INIT(&sendreq->req_send,                     \
+        buf,                                                               \
+        count,                                                             \
+        datatype,                                                          \
+        dst,                                                               \
+        tag,                                                               \
+        comm,                                                              \
+        sendmode,                                                          \
+        persistent);                                                       \
+}
+
+
+/**
+ *  NTL doesn't require pre-pinned or "specially" allocated memory.
+ *  Can try to directly send from the users buffer if contigous.
+ */
+
+int mca_pml_ob1_send_user(
+    mca_pml_ob1_send_request_t* sendreq,
+    mca_pml_ob1_endpoint_t* endpoint);
+
+
+/**
+ *  NTL requires "specially" allocated memory. Request a segment that
+ *  is used for initial hdr and any eager data.
+ */
+
+int mca_pml_ob1_send_copy(
+    mca_pml_ob1_send_request_t* sendreq,
+    mca_pml_ob1_endpoint_t* endpoint);
+
+
+/**
+ * Start a send request. 
+ */
+
+#define MCA_PML_GEN2_SEND_REQUEST_START(sendreq, rc)                                      \
+{                                                                                         \
+    mca_pml_ob1_endpoint_t* endpoint;                                                    \
+    mca_pml_ob1_proc_t* proc = sendreq->req_proc;                                        \
+                                                                                          \
+    /* select next endpoint */                                                            \
+    endpoint = mca_pml_ob1_ep_array_get_next(&proc->bmi_first);                          \
+    sendreq->req_offset = 0;                                                              \
+    sendreq->req_send.req_base.req_ompi.req_complete = false;                             \
+    sendreq->req_send.req_base.req_ompi.req_state = OMPI_REQUEST_ACTIVE;                  \
+    sendreq->req_send.req_base.req_sequence = OMPI_THREAD_ADD32(&proc->proc_sequence,1);  \
+    sendreq->req_endpoint = endpoint;                                                     \
+                                                                                          \
+    /* handle buffered send */                                                            \
+    if(sendreq->req_send.req_send_mode == MCA_PML_BASE_SEND_BUFFERED) {                   \
+        mca_pml_base_bsend_request_start(&sendreq->req_send.req_base.req_ompi);           \
+    }                                                                                     \
+                                                                                          \
+    if(NULL != endpoint->bmi_alloc) {                                                     \
+        rc = mca_pml_ob1_send_copy(sendreq, endpoint);                                   \
+    } else {                                                                              \
+        rc = mca_pml_ob1_send_user(sendreq, endpoint);                                   \
+    }                                                                                     \
+}
+
+
+#define MCA_PML_GEN2_SEND_REQUEST_RETURN(sendreq)                    \
+{                                                                    \
+    /*  Let the base handle the reference counts */                  \
+    MCA_PML_BASE_SEND_REQUEST_FINI((&sendreq->req_send));            \
+    OMPI_FREE_LIST_RETURN(                                           \
+        &mca_pml_ob1.send_requests, (ompi_list_item_t*)sendreq);    \
+}
+                                                                                                                      
+
+
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+#endif
+

src/mca/pml/ob1/pml_ob1_start.c

@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#include "ompi_config.h"
+
+#include "pml_ob1.h"
+#include "pml_ob1_recvreq.h"
+#include "pml_ob1_sendreq.h"
+
+
+int mca_pml_ob1_start(size_t count, ompi_request_t** requests)
+{
+    int rc;
+    size_t i;
+    for(i=0; i<count; i++) {
+        mca_pml_base_request_t *pml_request = (mca_pml_base_request_t*)requests[i];
+        if(NULL == pml_request)
+            continue;
+
+        /* If the persistent request is currebmiy active - obtain the
+         * request lock and verify the status is incomplete. if the
+         * pml layer has not completed the request - mark the request
+         * as free called - so that it will be freed when the request
+         * completes - and create a new request.
+         */
+
+        switch(pml_request->req_ompi.req_state) {
+            case OMPI_REQUEST_INACTIVE:
+                if(pml_request->req_pml_complete == true)
+                    break;
+                /* otherwise fall through */
+            case OMPI_REQUEST_ACTIVE: {
+            
+                ompi_request_t *request;
+                OMPI_THREAD_LOCK(&ompi_request_lock);
+                if (pml_request->req_pml_complete == false) {
+                    /* free request after it completes */
+                    pml_request->req_free_called = true;
+                } else {
+                    /* can reuse the existing request */
+                    OMPI_THREAD_UNLOCK(&ompi_request_lock);
+                    break;
+                }
+
+                /* allocate a new request */
+                switch(pml_request->req_type) {
+                    case MCA_PML_REQUEST_SEND: {
+                         mca_pml_base_send_mode_t sendmode = 
+                             ((mca_pml_base_send_request_t*)pml_request)->req_send_mode;
+                         rc = mca_pml_ob1_isend_init(
+                              pml_request->req_addr,
+                              pml_request->req_count,
+                              pml_request->req_datatype,
+                              pml_request->req_peer,
+                              pml_request->req_tag,
+                              sendmode,
+                              pml_request->req_comm,
+                              &request);
+                         break;
+                    }
+                    case MCA_PML_REQUEST_RECV:
+                         rc = mca_pml_ob1_irecv_init(
+                              pml_request->req_addr,
+                              pml_request->req_count,
+                              pml_request->req_datatype,
+                              pml_request->req_peer,
+                              pml_request->req_tag,
+                              pml_request->req_comm,
+                              &request);
+                         break;
+                    default:
+                         rc = OMPI_ERR_REQUEST;
+                         break;
+                }
+                OMPI_THREAD_UNLOCK(&ompi_request_lock);
+                if(OMPI_SUCCESS != rc)
+                    return rc;
+                pml_request = (mca_pml_base_request_t*)request;
+                requests[i] = request;
+                break;
+            }
+            default:
+                return OMPI_ERR_REQUEST;
+        }
+
+        /* start the request */
+        switch(pml_request->req_type) {
+            case MCA_PML_REQUEST_SEND: 
+            {
+                mca_pml_ob1_send_request_t* sendreq = (mca_pml_ob1_send_request_t*)pml_request;
+                MCA_PML_GEN2_SEND_REQUEST_START(sendreq, rc);
+                if(rc != OMPI_SUCCESS)
+                    return rc;
+                break;
+            }
+            case MCA_PML_REQUEST_RECV:
+            {
+                mca_pml_ob1_recv_request_t* recvreq = (mca_pml_ob1_recv_request_t*)pml_request;
+                MCA_PML_GEN2_RECV_REQUEST_START(recvreq);
+                break;
+            }
+            default:
+                return OMPI_ERR_REQUEST;
+        }
+    }
+    return OMPI_SUCCESS;
+}
+

src/mca/pml/pml.h

@@ -39,10 +39,6 @@
  * returning the highest priority and closes/unloads any other PML
  * components that may have been opened.
  *
- * After the PML is selected, the MCA framework loads and initalize
- * all available PTLs. The PML is notified of the selected PTLs via
- * the the mca_pml_base_add_ptls_fn_t downcall from the MCA.
- * 
  * After all of the MCA components are initialized, the MPI/RTE will
  * make downcalls into the PML to provide the initial list of
  * processes (ompi_proc_t instances), and notification of changes
@@ -160,32 +156,14 @@ typedef int (*mca_pml_base_module_add_procs_fn_t)(struct ompi_proc_t **procs, si
  */
 typedef int (*mca_pml_base_module_del_procs_fn_t)(struct ompi_proc_t **procs, size_t nprocs);
 
-
-/**
- * Downcall from MCA layer after all PTLs have been loaded/selected.
- *
- * @param  ptls    List of selected PTLs
- * @return         OMPI_SUCCESS or failure status.
- *
- * Provides a notification to the PML that processes have 
- * gone away, and provides the PML the opportunity to cleanup
- * any data cached on the ompi_proc_t data structure.
- */
-typedef int (*mca_pml_base_module_add_ptls_fn_t)(ompi_list_t *ptls);
-
-
 /**
  * Downcall from MCA layer to enable the PML/PTLs.
  *
- * @param   param   parameter to change
- * @param   value   optional value
- * @param   size    size of value
+ * @param   enable  Enable/Disable PML forwarding
  * @return          OMPI_SUCCESS or failure status.
 */
-typedef int (*mca_pml_base_module_control_fn_t)(
-    int param,
-    void *value,
-    size_t size
+typedef int (*mca_pml_base_module_enable_fn_t)(
+    bool enable
 );
 
 
@@ -468,8 +446,7 @@ struct mca_pml_base_module_1_0_0_t {
     /* downcalls from MCA to PML */
     mca_pml_base_module_add_procs_fn_t    pml_add_procs;
     mca_pml_base_module_del_procs_fn_t    pml_del_procs;
-    mca_pml_base_module_add_ptls_fn_t     pml_add_ptls;
-    mca_pml_base_module_control_fn_t      pml_control;
+    mca_pml_base_module_enable_fn_t       pml_enable;
     mca_pml_base_module_progress_fn_t     pml_progress;
 
     /* downcalls from MPI to PML */

src/mca/pml/teg/pml_teg.c

@@ -40,8 +40,7 @@ mca_pml_teg_t mca_pml_teg = {
     {
     mca_pml_teg_add_procs,
     mca_pml_teg_del_procs,
-    mca_pml_teg_add_ptls,
-    mca_pml_teg_control,
+    mca_pml_teg_enable,
     mca_pml_teg_progress,
     mca_pml_teg_add_comm,
     mca_pml_teg_del_comm,
@@ -91,11 +90,11 @@ static int ptl_exclusivity_compare(const void* arg1, const void* arg2)
 }
 
 
-int mca_pml_teg_add_ptls(ompi_list_t *ptls)
+int mca_pml_teg_add_ptls(void)
 {
     /* build an array of ptls and ptl modules */
     mca_ptl_base_selected_module_t* selected_ptl;
-    size_t num_ptls = ompi_list_get_size(ptls);
+    size_t num_ptls = ompi_list_get_size(&mca_ptl_base_modules_initialized);
     size_t cache_bytes = 0;
     mca_pml_teg.teg_num_ptl_modules = 0;
     mca_pml_teg.teg_num_ptl_progress = 0;
@@ -109,9 +108,11 @@ int mca_pml_teg_add_ptls(ompi_list_t *ptls)
         return OMPI_ERR_OUT_OF_RESOURCE;
     }
 
-    for(selected_ptl =  (mca_ptl_base_selected_module_t*)ompi_list_get_first(ptls);
-        selected_ptl != (mca_ptl_base_selected_module_t*)ompi_list_get_end(ptls);
-        selected_ptl =  (mca_ptl_base_selected_module_t*)ompi_list_get_next(selected_ptl)) {
+    for(selected_ptl = (mca_ptl_base_selected_module_t*)
+            ompi_list_get_first(&mca_ptl_base_modules_initialized);
+        selected_ptl != (mca_ptl_base_selected_module_t*)
+            ompi_list_get_end(&mca_ptl_base_modules_initialized);
+        selected_ptl = (mca_ptl_base_selected_module_t*)ompi_list_get_next(selected_ptl)) {
         mca_ptl_base_module_t *ptl = selected_ptl->pbsm_module;
         size_t i;
 
@@ -163,12 +164,13 @@ int mca_pml_teg_add_ptls(ompi_list_t *ptls)
  * Pass control information through to all PTL modules.
  */
 
-int mca_pml_teg_control(int param, void* value, size_t size)
+int mca_pml_teg_enable(bool enable) 
 {
     size_t i=0;
+    int value = enable;
     for(i=0; i<mca_pml_teg.teg_num_ptl_components; i++) {
         if(NULL != mca_pml_teg.teg_ptl_components[i]->ptlm_control) {
-            int rc = mca_pml_teg.teg_ptl_components[i]->ptlm_control(param,value,size);
+            int rc = mca_pml_teg.teg_ptl_components[i]->ptlm_control(MCA_PTL_ENABLE,&value,sizeof(value));
             if(rc != OMPI_SUCCESS)
                 return rc;
         }

src/mca/pml/teg/pml_teg.h

@@ -113,14 +113,10 @@ extern int mca_pml_teg_del_procs(
     size_t nprocs
 );
 
-extern int mca_pml_teg_add_ptls(
-    ompi_list_t *ptls
-);
+extern int mca_pml_teg_add_ptls(void);
 
-extern int mca_pml_teg_control(
-    int param,
-    void *size,
-    size_t value
+extern int mca_pml_teg_enable(
+    bool enable
 );
 
 extern int mca_pml_teg_progress(void);
@@ -239,7 +235,6 @@ extern int mca_pml_teg_start(
     pml_request->req_free_called = true; \
     if( pml_request->req_pml_complete == true) \
     { \
-        OMPI_REQUEST_FINI(*(request)); \
         switch(pml_request->req_type) { \
         case MCA_PML_REQUEST_SEND: \
             { \

src/mca/pml/teg/pml_teg_component.c

@@ -22,6 +22,7 @@
 #include "mca/ptl/ptl.h"
 #include "mca/base/mca_base_param.h"
 #include "mca/pml/base/pml_base_bsend.h"
+#include "mca/ptl/base/base.h"
 #include "pml_teg.h"
 #include "pml_teg_proc.h"
 #include "pml_teg_sendreq.h"
@@ -102,14 +103,19 @@ int mca_pml_teg_component_open(void)
     mca_pml_teg.teg_poll_iterations =
         mca_pml_teg_param_register_int("poll_iterations", 100000);
     mca_pml_teg.teg_priority =
-        mca_pml_teg_param_register_int("priority", 0);
+        mca_pml_teg_param_register_int("priority", 1);
 
-    return OMPI_SUCCESS;
+    /* attempt to open all ptls */
+    return mca_ptl_base_open();
 }
 
 
 int mca_pml_teg_component_close(void)
 {
+    int rc;
+    if(OMPI_SUCCESS != (rc = mca_ptl_base_close()))
+        return rc;
+
 #ifdef WIN32
     WSACleanup();
 #endif
@@ -172,6 +178,11 @@ mca_pml_base_module_t* mca_pml_teg_component_init(int* priority,
     if(rc != OMPI_SUCCESS)
         return NULL;
     
+    rc = mca_ptl_base_select(enable_progress_threads,enable_mpi_threads);
+    if(rc != OMPI_SUCCESS)
+        return NULL;
+
+    mca_pml_teg_add_ptls();
     return &mca_pml_teg.super;
 }
 

src/mca/pml/teg/pml_teg_iprobe.c

@@ -44,7 +44,7 @@ int mca_pml_teg_iprobe(int src,
             ompi_progress();
         }
     }
-    MCA_PML_BASE_RECV_REQUEST_RETURN((&recvreq.req_recv));
+    MCA_PML_BASE_RECV_REQUEST_FINI((&recvreq.req_recv));
     return rc;
 }
 
@@ -63,7 +63,7 @@ int mca_pml_teg_probe(int src,
     MCA_PML_TEG_RECV_REQUEST_INIT(&recvreq, NULL, 0, &ompi_mpi_char, src, tag, comm, true);
 
     if ((rc = mca_pml_teg_recv_request_start(&recvreq)) != OMPI_SUCCESS) {
-        MCA_PML_BASE_RECV_REQUEST_RETURN((&recvreq.req_recv));
+        MCA_PML_BASE_RECV_REQUEST_FINI((&recvreq.req_recv));
         return rc;
     }
 
@@ -87,7 +87,7 @@ int mca_pml_teg_probe(int src,
     if (NULL != status) {
         *status = recvreq.req_recv.req_base.req_ompi.req_status;
     }
-    MCA_PML_BASE_RECV_REQUEST_RETURN(&recvreq.req_recv);
+    MCA_PML_BASE_RECV_REQUEST_FINI(&recvreq.req_recv);
     return OMPI_SUCCESS;
 }
 

src/mca/pml/teg/pml_teg_recvreq.h

@@ -79,7 +79,7 @@ OBJ_CLASS_DECLARATION(mca_pml_teg_recv_request_t);
  */
 #define MCA_PML_TEG_RECV_REQUEST_RETURN(request)                                           \
     do {                                                                                   \
-        MCA_PML_BASE_RECV_REQUEST_RETURN( &request->req_recv );                            \
+        MCA_PML_BASE_RECV_REQUEST_FINI( &request->req_recv );                              \
         OMPI_FREE_LIST_RETURN(&mca_pml_teg.teg_recv_requests, (ompi_list_item_t*)request); \
     } while(0)
 

src/mca/pml/teg/pml_teg_sendreq.h

@@ -128,7 +128,7 @@ OBJ_CLASS_DECLARATION(mca_pml_teg_send_request_t);
     mca_pml_base_ptl_t* ptl_base = ptl->ptl_base;                          \
                                                                            \
     /*  Let the base handle the reference counts */                        \
-    MCA_PML_BASE_SEND_REQUEST_RETURN((&sendreq->req_send));                \
+    MCA_PML_BASE_SEND_REQUEST_FINI((&sendreq->req_send));                  \
                                                                            \
     /*                                                                     \
      * If there is a cache associated with the ptl - first attempt         \

src/mca/pml/uniq/pml_uniq_component.c

@@ -20,6 +20,7 @@
 #include "mpi.h"
 #include "mca/pml/pml.h"
 #include "mca/ptl/ptl.h"
+#include "mca/ptl/base/base.h"
 #include "mca/base/mca_base_param.h"
 #include "mca/pml/base/pml_base_bsend.h"
 #include "pml_uniq.h"
@@ -102,12 +103,17 @@ int mca_pml_uniq_component_open(void)
     mca_pml_uniq.uniq_poll_iterations =
         mca_pml_uniq_param_register_int("poll_iterations", 100000);
 
-    return OMPI_SUCCESS;
+    /* attempt to open ptls */
+    return mca_ptl_base_open();
 }
 
 
 int mca_pml_uniq_component_close(void)
 {
+    int rc;
+    if(OMPI_SUCCESS != (rc = mca_ptl_base_close()))
+        return rc;
+                                                                                                                   
 #ifdef WIN32
     WSACleanup();
 #endif
@@ -170,6 +176,11 @@ mca_pml_base_module_t* mca_pml_uniq_component_init(int* priority,
     if(rc != OMPI_SUCCESS)
         return NULL;
     
+    rc = mca_ptl_base_select(enable_progress_threads,enable_mpi_threads);
+    if(rc != OMPI_SUCCESS)
+        return NULL;
+                                                                                                                   
+    mca_pml_teg_add_ptls();
     return &mca_pml_uniq.super;
 }
 

src/mca/ptl/base/ptl_base_select.c

@@ -143,11 +143,6 @@ int mca_ptl_base_select(bool enable_progress_threads,
     orte_abort(1, "No ptl components available.  This shouldn't happen.");
   }
 
-  /* Once we have some modules, tell the PML about them */
-
-  MCA_PML_CALL(add_ptls(&mca_ptl_base_modules_initialized));
-
   /* All done */
-
   return OMPI_SUCCESS;
 }

src/mca/ptl/tcp/Makefile.am

@@ -18,8 +18,21 @@
 
 include $(top_ompi_srcdir)/config/Makefile.options
 
-sources =
-include src/Makefile.extra
+sources = \
+	ptl_tcp.c \
+	ptl_tcp.h \
+    ptl_tcp_addr.h \
+	ptl_tcp_component.c \
+	ptl_tcp_peer.c \
+	ptl_tcp_peer.h \
+	ptl_tcp_proc.c \
+	ptl_tcp_proc.h \
+	ptl_tcp_recvfrag.c \
+	ptl_tcp_recvfrag.h \
+	ptl_tcp_sendfrag.c \
+	ptl_tcp_sendfrag.h \
+	ptl_tcp_sendreq.c \
+	ptl_tcp_sendreq.h
 
 # Make the output library in this directory, and name it either
 # mca_<type>_<name>.la (for DSO builds) or libmca_<type>_<name>.la
@@ -45,3 +58,4 @@ mca_ptl_tcp_la_LDFLAGS = -module -avoid-version
 noinst_LTLIBRARIES = $(lib)
 libmca_ptl_tcp_la_SOURCES = $(lib_sources)
 libmca_ptl_tcp_la_LDFLAGS = -module -avoid-version
+

src/mca/ptl/tcp/configure.params

@@ -17,6 +17,6 @@
 
 # Specific to this module
 
-PARAM_INIT_FILE=src/ptl_tcp.c
-PARAM_CONFIG_HEADER_FILE="src/tcp_config.h"
+PARAM_INIT_FILE=ptl_tcp.c
+PARAM_CONFIG_HEADER_FILE="tcp_config.h"
 PARAM_CONFIG_FILES="Makefile"

src/mpi/runtime/ompi_mpi_finalize.c

@@ -40,8 +40,6 @@
 #include "mca/base/mca_base_module_exchange.h"
 #include "mca/pml/pml.h"
 #include "mca/pml/base/base.h"
-#include "mca/ptl/ptl.h"
-#include "mca/ptl/base/base.h"
 #include "mca/coll/coll.h"
 #include "mca/coll/base/base.h"
 #include "mca/topo/topo.h"
@@ -119,9 +117,6 @@ int ompi_mpi_finalize(void)
 
     /* Now that all MPI objects dealing with communications are gone,
        shut down MCA types having to do with communications */
-    if (OMPI_SUCCESS != (ret = mca_ptl_base_close())) {
-	return ret;
-    }
     if (OMPI_SUCCESS != (ret = mca_pml_base_close())) {
 	return ret;
     }

src/mpi/runtime/ompi_mpi_init.c

@@ -44,8 +44,6 @@
 #include "mca/mpool/base/base.h"
 #include "mca/mpool/mpool.h"
 #include "mca/pml/pml.h"
-#include "mca/ptl/ptl.h"
-#include "mca/ptl/base/base.h"
 #include "mca/pml/pml.h"
 #include "mca/pml/base/base.h"
 #include "mca/coll/coll.h"
@@ -81,7 +79,7 @@ ompi_thread_t *ompi_mpi_main_thread = NULL;
 
 int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
 {
-    int ret, param;
+    int ret;
     ompi_proc_t** procs;
     size_t nprocs;
     char *error = NULL;
@@ -169,10 +167,6 @@ int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
         error = "mca_pml_base_open() failed";
         goto error;
     }
-    if (OMPI_SUCCESS != (ret = mca_ptl_base_open())) {
-        error = "mca_ptl_base_open() failed";
-        goto error;
-    }
     if (OMPI_SUCCESS != (ret = mca_coll_base_open())) {
         error = "mca_coll_base_open() failed";
         goto error;
@@ -207,13 +201,6 @@ int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
         goto error;
     }
 
-    if (OMPI_SUCCESS != 
-        (ret = mca_ptl_base_select(OMPI_ENABLE_PROGRESS_THREADS,
-                                   OMPI_ENABLE_MPI_THREADS))) {
-        error = "mca_ptl_base_select() failed";
-        goto error;
-    }
-
     if (OMPI_SUCCESS != 
         (ret = mca_coll_base_find_available(OMPI_ENABLE_PROGRESS_THREADS,
                                             OMPI_ENABLE_MPI_THREADS))) {
@@ -346,10 +333,11 @@ int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
     }
     free(procs);
 
+    MCA_PML_CALL(add_comm(&ompi_mpi_comm_world));
+    MCA_PML_CALL(add_comm(&ompi_mpi_comm_self));
+
     /* start PTL's */
-    param = 1;
-    if (OMPI_SUCCESS != 
-        (ret = mca_pml.pml_control(MCA_PTL_ENABLE, &param, sizeof(param)))) {
+    if (OMPI_SUCCESS != (ret = mca_pml.pml_enable(true))) {
         error = "PML control failed";
         goto error;
     }

src/runtime/ompi_progress.c

@@ -401,7 +401,7 @@ ompi_progress(void)
     ompi_atomic_unlock(&progress_lock);
 #endif  /* OMPI_HAVE_THREAD_SUPPORT */
 
-    if (call_yield && events <= 0) {
+    if (events <= 0) {
         /* If there is nothing to do - yield the processor - otherwise
          * we could consume the processor for the entire time slice. If
          * the processor is oversubscribed - this will result in a best-case

src/tools/orted/orted.c

@@ -82,7 +82,7 @@ ompi_cmd_line_init_t orte_cmd_line_opts[] = {
       "Show the orted version" },
 
     { "orte", "debug", NULL, 'd', NULL, "debug", 0,
-      NULL, OMPI_CMD_LINE_TYPE_BOOL,
+      &orted_globals.debug, OMPI_CMD_LINE_TYPE_BOOL,
       "Debug the OpenRTE" },
 
     { NULL, NULL, NULL, '\0', NULL, "no-daemonize", 0,
@@ -156,6 +156,8 @@ int main(int argc, char *argv[])
     char log_file[PATH_MAX];
     char *jobidstring;
     
+    fprintf(stderr, "orted\n");
+
     /* setup to check common command line options that just report and die */
     memset(&orted_globals, 0, sizeof(orted_globals_t));
     cmd_line = OBJ_NEW(ompi_cmd_line_t);
@@ -207,7 +209,9 @@ int main(int argc, char *argv[])
     /* detach from controlling terminal
      * otherwise, remain attached so output can get to us
      */
-    if(orted_globals.debug_daemons == false && orted_globals.no_daemonize == false) {
+    if(orted_globals.debug == false &&
+       orted_globals.debug_daemons == false && 
+       orted_globals.no_daemonize == false) {
         orte_daemon_init(NULL);
     }
 

src/tools/orted/orted.h

@@ -50,6 +50,7 @@ typedef struct {
     bool help;
     bool version;
     bool no_daemonize;
+    bool debug;
     bool debug_daemons;
     bool debug_daemons_file;
     char* name;