- Add copyright headers to btl_sm_frag.h

- Ensure to convert base_shared_mem_flags to be a relative offset in
  the global storage, and then to convert that back to an absolute
  virtual address before we try to use it
- Don't double increment n_local_procs when calculating the peer rank
  during bootstrapping of the different base address case

Something else is still wrong; if mmap() returns a different base
address, things don't work (i.e., segv or hang forever when you try to
send a message).  More specifically, the bootstrapping now seems to
correctly handle the case when mmap() base addresses are different,
but the message passing does *not* -- it always assumes that the
mmap() base addresses are the same.

Still working on the fix for that -- want to checkpoint what has been
done so far to facilitate working on different machines...

This commit was SVN r8134.

ompi/mca/btl/sm/btl_sm.c

@@ -119,6 +119,7 @@ int mca_btl_sm_add_procs_same_base_addr(
     bool same_sm_base;
     ssize_t diff;
     volatile char **tmp_ptr;
+    volatile int *tmp_int_ptr;
 
     /* initializion */
     for(i=0 ; i < nprocs ; i++ ) {
@@ -379,6 +380,12 @@ int mca_btl_sm_add_procs_same_base_addr(
                                segment_header.base_shared_mem_segment) -
                       (char *)(mca_btl_sm_component.sm_mpool->mpool_base(mca_btl_sm_component.sm_mpool)) );
 
+	    mca_btl_sm_component.sm_ctl_header->segment_header.
+	      base_shared_mem_flags = (volatile int *)
+                ( ((char *) mca_btl_sm_component.sm_ctl_header->
+                   segment_header.base_shared_mem_flags) -
+                  (char *) (mca_btl_sm_component.sm_mpool_base));
+
             /* allow other procs to use this shared memory map */
             mca_btl_sm_component.mmap_file->map_seg->seg_inited=true;
 
@@ -409,8 +416,12 @@ int mca_btl_sm_add_procs_same_base_addr(
          *  flags are set */
         opal_atomic_mb();
 
-        mca_btl_sm_component.sm_ctl_header->segment_header.
-            base_shared_mem_flags[mca_btl_sm_component.my_smp_rank]=1;
+	/* Set my flag to 1 (convert from relative address first) */
+        tmp_int_ptr=(volatile int *)
+            ( ((char *) mca_btl_sm_component.sm_ctl_header->segment_header.
+               base_shared_mem_flags) +
+              ((long) mca_btl_sm_component.sm_mpool_base));
+	tmp_int_ptr[mca_btl_sm_component.my_smp_rank]=1;
 
         /*
          * initialize the array of fifo's "owned" by this process
@@ -607,15 +618,14 @@ int mca_btl_sm_add_procs(
     /* set connectivity */
     n_local_procs=0;
     for(proc = 0 ; proc < nprocs ; proc++ ) {
-        if( (SM_CONNECTED_DIFFERENT_BASE_ADDR ==
-                    mca_btl_sm_component.sm_proc_connect[proc]) ||
-                (SM_CONNECTED ==
-                    mca_btl_sm_component.sm_proc_connect[proc]) ) {
+        /* Same base address base */
+        if (SM_CONNECTED == mca_btl_sm_component.sm_proc_connect[proc]) {
             n_local_procs++;
         }
 
-        if( (SM_CONNECTED_DIFFERENT_BASE_ADDR ==
-                    mca_btl_sm_component.sm_proc_connect[proc]) ) {
+        /* Different base address case */
+        else if (SM_CONNECTED_DIFFERENT_BASE_ADDR ==
+                mca_btl_sm_component.sm_proc_connect[proc]) {
 
             /* add this proc to shared memory accessability list */
             return_code=ompi_bitmap_set_bit(reachability,proc);

ompi/mca/btl/sm/btl_sm_frag.c

@@ -1,3 +1,21 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
+ *                         University Research and Technology
+ *                         Corporation.  All rights reserved.
+ * Copyright (c) 2004-2005 The University of Tennessee and The University
+ *                         of Tennessee Research Foundation.  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 "btl_sm_frag.h"