X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/69018fc50f3c15c11e86618a06e3a2f9fc6aeeb3..3ec2b07053bb1769b1aa337a076ed76adf2d5d36:/src/smpi/smpi_global.c

diff --git a/src/smpi/smpi_global.c b/src/smpi/smpi_global.c
index 2b86de6f75..47d5639a3d 100644
--- a/src/smpi/smpi_global.c
+++ b/src/smpi/smpi_global.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007-2013. The SimGrid Team.
+/* Copyright (c) 2007-2014. The SimGrid Team.
  * All rights reserved.                                                     */
 
 /* This program is free software; you can redistribute it and/or modify it
@@ -68,7 +68,9 @@ void smpi_process_init(int *argc, char ***argv)
   if (argc && argv) {
     proc = SIMIX_process_self();
     index = atoi((*argv)[1]);
+#ifdef SMPI_F2C
     smpi_current_rank = index;
+#endif
     data = smpi_process_remote_data(index);
     simcall_process_set_data(proc, data);
     if (*argc > 2) {
@@ -158,6 +160,7 @@ int smpi_process_getarg(integer * index, char *dst, ftnlen len)
   }
   return 0;
 }
+#endif
 
 int smpi_global_size(void)
 {
@@ -170,7 +173,6 @@ int smpi_global_size(void)
   }
   return atoi(value);
 }
-#endif
 
 smpi_process_data_t smpi_process_data(void)
 {
@@ -252,6 +254,12 @@ double smpi_process_simulated_elapsed(void)
 MPI_Comm smpi_process_comm_self(void)
 {
   smpi_process_data_t data = smpi_process_data();
+  if(data->comm_self==MPI_COMM_NULL){
+    MPI_Group group = smpi_group_new(1);
+    data->comm_self = smpi_comm_new(group);
+    smpi_group_set_mapping(group, smpi_process_index(), 0);
+  }
+
   return data->comm_self;
 }
 
@@ -312,12 +320,9 @@ void smpi_global_init(void)
     process_data[i]->timer = xbt_os_timer_new();
     if (MC_is_active())
       MC_ignore_heap(process_data[i]->timer, xbt_os_timer_size());
-    group = smpi_group_new(1);
-    process_data[i]->comm_self = smpi_comm_new(group);
+    process_data[i]->comm_self = MPI_COMM_NULL;
     process_data[i]->initialized = 0;
     process_data[i]->sampling = 0;
-
-    smpi_group_set_mapping(group, i, 0);
   }
   group = smpi_group_new(process_count);
   MPI_COMM_WORLD = smpi_comm_new(group);
@@ -330,6 +335,13 @@ void smpi_global_init(void)
 
   xbt_assert(sg_cfg_get_int("smpi/async_small_thres") <=
              sg_cfg_get_int("smpi/send_is_detached_thres"));
+
+  if (sg_cfg_is_default_value("smpi/running_power")) {
+    XBT_INFO("You did not set the power of the host running the simulation.  "
+             "The timings will certainly not be accurate.  "
+             "Use the option \"--cfg=smpi/running_power:<flops>\" to set its value."
+             "Check http://simgrid.org/simgrid/latest/doc/options.html#options_smpi_bench for more information. ");
+  }
 }
 
 void smpi_global_destroy(void)
@@ -342,8 +354,10 @@ void smpi_global_destroy(void)
   xbt_free(MPI_COMM_WORLD);
   MPI_COMM_WORLD = MPI_COMM_NULL;
   for (i = 0; i < count; i++) {
-    smpi_group_unuse(smpi_comm_group(process_data[i]->comm_self));
-    smpi_comm_destroy(process_data[i]->comm_self);
+    if(process_data[i]->comm_self!=MPI_COMM_NULL){
+      smpi_group_unuse(smpi_comm_group(process_data[i]->comm_self));
+      smpi_comm_destroy(process_data[i]->comm_self);
+    }
     xbt_os_timer_free(process_data[i]->timer);
     simcall_rdv_destroy(process_data[i]->mailbox);
     simcall_rdv_destroy(process_data[i]->mailbox_small);