Add a new reliable multicast component based on the "spread" library

Thanks to Srini Nariangadu (Cisco) for the contribution!

This commit was SVN r23076.

orte/mca/rmcast/base/private.h

@@ -103,6 +103,7 @@ typedef struct {
     orte_rmcast_callback_fn_t cbfunc_iovec;
     orte_rmcast_callback_buffer_fn_t cbfunc_buffer;
     void *cbdata;
+    bool send_complete;
 } rmcast_base_send_t;
 ORTE_DECLSPEC OBJ_CLASS_DECLARATION(rmcast_base_send_t);
 

orte/mca/rmcast/rmcast_types.h

@@ -54,7 +54,8 @@ typedef int32_t orte_rmcast_tag_t;
 #define ORTE_RMCAST_TAG_MSG          6
 #define ORTE_RMCAST_TAG_TOOL         7
 #define ORTE_RMCAST_TAG_IOF          8
-#define ORTE_RMCAST_TAG_UPDATE_STATE    9
+#define ORTE_RMCAST_TAG_STATE        9
+#define ORTE_RMCAST_TAG_STATE_ACK   10
 
 /* starting value for dynamically assignable tags */
 #define ORTE_RMCAST_TAG_DYNAMIC     100

orte/mca/rmcast/spread/Makefile.am

@@ -0,0 +1,38 @@
+#
+# Copyright (c) 2009      Cisco Systems, Inc.  All rights reserved. 
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+AM_CPPFLAGS = $(rmcast_spread_CPPFLAGS)
+
+# 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_rmcast_spread_DSO
+component_noinst =
+component_install = mca_rmcast_spread.la
+else
+component_noinst = libmca_rmcast_spread.la
+component_install =
+endif
+
+rmcast_spread_SOURCES = \
+        rmcast_spread.c \
+        rmcast_spread.h \
+        rmcast_spread_component.c
+
+mcacomponentdir = $(pkglibdir)
+mcacomponent_LTLIBRARIES = $(component_install)
+mca_rmcast_spread_la_SOURCES = $(rmcast_spread_SOURCES)
+mca_rmcast_spread_la_LDFLAGS = -module -avoid-version $(rmcast_spread_LDFLAGS)
+mca_rmcast_spread_la_LIBADD = $(rmcast_spread_LIBS)
+
+noinst_LTLIBRARIES = $(component_noinst)
+libmca_rmcast_spread_la_SOURCES = $(rmcast_spread_SOURCES)
+libmca_rmcast_spread_la_LDFLAGS = -module -avoid-version $(rmcast_spread_LDFLAGS)
+libmca_rmcast_spread_la_LIBADD = $(rmcast_spread_LIBS)

orte/mca/rmcast/spread/configure.m4

@@ -0,0 +1,25 @@
+dnl -*- shell-script -*-
+dnl
+dnl Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved. 
+dnl $COPYRIGHT$
+dnl 
+dnl Additional copyrights may follow
+dnl 
+dnl $HEADER$
+dnl
+
+# MCA_rmcast_spread_CONFIG([action-if-found], [action-if-not-found])
+# -----------------------------------------------------------
+AC_DEFUN([MCA_rmcast_spread_CONFIG],[
+   OPAL_SETUP_COMPONENT_PACKAGE([rmcast],
+                              [spread],
+                              [spread],
+                              [include/sp.h],
+                              [libspread*],
+                              [sp.h],
+                              [spread],
+                              [SP_version],
+                              [],
+                              [$1],
+                              [$2])
+])dnl

orte/mca/rmcast/spread/configure.params

@@ -0,0 +1,11 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved. 
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+PARAM_CONFIG_FILES="Makefile"

orte/mca/rmcast/spread/rmcast_spread.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved. 
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#ifndef ORTE_RMCAST_SPREAD_H
+#define ORTE_RMCAST_SPREAD_H
+
+#include "orte_config.h"
+
+#include "opal/mca/mca.h"
+#include "opal/mca/base/base.h"
+
+#include "orte/mca/rmcast/rmcast.h"
+
+BEGIN_C_DECLS
+
+#define ORTE_RMCAST_SPREAD_MAX_MSG_SIZE  1500
+
+typedef struct {
+    orte_rmcast_base_component_t super;
+    int max_msg_size;
+} orte_rmcast_spread_component_t;
+
+
+/*
+ * Module open / close
+ */
+int orte_rmcast_spread_component_open(void);
+int orte_rmcast_spread_component_close(void);
+int orte_rmcast_spread_component_query(mca_base_module_t **module, int *priority);
+
+
+ORTE_MODULE_DECLSPEC extern orte_rmcast_spread_component_t mca_rmcast_spread_component;
+ORTE_DECLSPEC extern orte_rmcast_module_t orte_rmcast_spread_module;
+
+END_C_DECLS
+
+#endif /* ORTE_RMCAST_SPREAD_H */

orte/mca/rmcast/spread/rmcast_spread_component.c

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2010      Cisco Systems, Inc.  All rights reserved. 
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ *
+ * These symbols are in a file by themselves to provide nice linker
+ * semantics.  Since linkers generally pull in symbols by object
+ * files, keeping these symbols as the only symbols in this file
+ * prevents utility programs such as "ompi_info" from having to import
+ * entire components just to query their version and parameters.
+ */
+
+#include "orte_config.h"
+#include "orte/constants.h"
+
+#include "opal/mca/base/base.h"
+#include "opal/mca/base/mca_base_param.h"
+
+#include "orte/util/proc_info.h"
+
+#include "orte/mca/rmcast/rmcast.h"
+#include "rmcast_spread.h"
+
+extern orte_rmcast_module_t orte_rmcast_spread_module;
+
+/*
+ * Public string showing the rmcast spread component version number
+ */
+const char *mca_rmcast_spread_component_version_string =
+    "Open MPI spread rmcast MCA component version " ORTE_VERSION;
+
+/*
+ * Instantiate the public struct with all of our public information
+ * and pointers to our public functions in it
+ */
+orte_rmcast_spread_component_t mca_rmcast_spread_component = {
+    {
+        {
+            ORTE_RMCAST_BASE_VERSION_1_0_0,
+            
+            /* Component name and version */
+            "spread",
+            ORTE_MAJOR_VERSION,
+            ORTE_MINOR_VERSION,
+            ORTE_RELEASE_VERSION,
+            
+            /* Component open and close functions */
+            orte_rmcast_spread_component_open,
+            orte_rmcast_spread_component_close,
+            orte_rmcast_spread_component_query
+        },
+        {
+            /* The component is checkpoint ready */
+            MCA_BASE_METADATA_PARAM_CHECKPOINT
+        }
+    }
+};
+
+
+int
+orte_rmcast_spread_component_open(void)
+{
+    mca_base_component_t *c = &mca_rmcast_spread_component.super.version;
+    
+    mca_base_param_reg_int(c, "max_msg_size",
+                           "Max #bytes in a single msg (must be > 0)",
+                           false, false,
+                           ORTE_RMCAST_SPREAD_MAX_MSG_SIZE,
+                           &mca_rmcast_spread_component.max_msg_size);
+
+    return ORTE_SUCCESS;
+}
+
+
+int orte_rmcast_spread_component_query(mca_base_module_t **module, int *priority)
+{
+    /* if we built, then we probably want to be selected */
+    *priority = 1000;
+    *module = (mca_base_module_t*)&orte_rmcast_spread_module;
+    return ORTE_SUCCESS;
+}
+
+
+int
+orte_rmcast_spread_component_close(void)
+{
+    return ORTE_SUCCESS;
+}
+