X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/23a2843a731fc505bcc3cf205cb9af60ae5086e5..dd51a081b7de36a60cd56540dc1002b1cf75b0e5:/src/smpi/smpi_global.c?ds=sidebyside

diff --git a/src/smpi/smpi_global.c b/src/smpi/smpi_global.c
index b7880c89d4..fbf18b4e80 100644
--- a/src/smpi/smpi_global.c
+++ b/src/smpi/smpi_global.c
@@ -34,6 +34,7 @@ typedef struct s_smpi_process_data {
   char state;
   int sampling;                 /* inside an SMPI_SAMPLE_ block? */
   char* instance_id;
+  xbt_bar_t finalization_barrier;
 } s_smpi_process_data_t;
 
 static smpi_process_data_t *process_data = NULL;
@@ -84,9 +85,12 @@ void smpi_process_init(int *argc, char ***argv)
     if(!index_to_process_data){
         index_to_process_data=(int*)xbt_malloc(SIMIX_process_count()*sizeof(int));
     }
-    MPI_Comm* temp_comm_world = smpi_deployment_register_process(instance_id, rank, index);
+    MPI_Comm* temp_comm_world;
+    xbt_bar_t temp_bar;
+    smpi_deployment_register_process(instance_id, rank, index, &temp_comm_world ,&temp_bar);
     data = smpi_process_remote_data(index);
     data->comm_world = temp_comm_world;
+    if(temp_bar != NULL) data->finalization_barrier = temp_bar;
     data->index = index;
     data->instance_id = instance_id;
     simcall_process_set_data(proc, data);
@@ -128,44 +132,10 @@ void smpi_process_destroy(void)
  */
 void smpi_process_finalize(void)
 {
-#if 0
-  // wait for all pending asynchronous comms to finish
-  while (SIMIX_process_has_pending_comms(SIMIX_process_self())) {
-    simcall_process_sleep(0.01);
-  }
-#else
-  int i;
-  int size = smpi_comm_size(MPI_COMM_WORLD);
-  int rank = smpi_comm_rank(MPI_COMM_WORLD);
-  /* All non-root send & receive zero-length message. */
-  if (rank > 0) {
-    smpi_mpi_ssend (NULL, 0, MPI_BYTE, 0,
-                    COLL_TAG_BARRIER,
-                    MPI_COMM_WORLD);
-    smpi_mpi_recv (NULL, 0, MPI_BYTE, 0,
-                    COLL_TAG_BARRIER,
-                    MPI_COMM_WORLD, MPI_STATUS_IGNORE);
-  }
-  /* The root collects and broadcasts the messages. */
-  else {
-    MPI_Request* requests;
-    requests = (MPI_Request*)malloc( size * sizeof(MPI_Request) );
-    for (i = 1; i < size; ++i) {
-      requests[i] = smpi_mpi_irecv(NULL, 0, MPI_BYTE, MPI_ANY_SOURCE,
-                                   COLL_TAG_BARRIER, MPI_COMM_WORLD
-                                   );
-    }
-    smpi_mpi_waitall( size-1, requests+1, MPI_STATUSES_IGNORE );
-    for (i = 1; i < size; ++i) {
-      requests[i] = smpi_mpi_issend(NULL, 0, MPI_BYTE, i,
-                                   COLL_TAG_BARRIER,
-                                   MPI_COMM_WORLD
-                                   );
-    }
-    smpi_mpi_waitall( size-1, requests+1, MPI_STATUSES_IGNORE );
-    free( requests );
-  }
-#endif
+    int index = smpi_process_index();
+    // wait for all pending asynchronous comms to finish
+    xbt_barrier_wait(process_data[index_to_process_data[index]]->finalization_barrier);
+
 }
 
 /**
@@ -441,6 +411,7 @@ void smpi_global_init(void)
     process_data[i]->comm_world = NULL;
     process_data[i]->state = SMPI_UNINITIALIZED;
     process_data[i]->sampling = 0;
+    process_data[i]->finalization_barrier = NULL;
   }
   //if the process was launched through smpirun script
   //we generate a global mpi_comm_world
@@ -449,9 +420,12 @@ void smpi_global_init(void)
   if(smpirun){
     group = smpi_group_new(process_count);
     MPI_COMM_WORLD = smpi_comm_new(group, NULL);
+    xbt_bar_t bar=xbt_barrier_init(process_count);
+
     MPI_UNIVERSE_SIZE = smpi_comm_size(MPI_COMM_WORLD);
     for (i = 0; i < process_count; i++) {
       smpi_group_set_mapping(group, i, i);
+      process_data[i]->finalization_barrier = bar;
     }
   }
 }
@@ -465,6 +439,9 @@ void smpi_global_destroy(void)
   if (MPI_COMM_WORLD != MPI_COMM_UNINITIALIZED){
       while (smpi_group_unuse(smpi_comm_group(MPI_COMM_WORLD)) > 0);
       xbt_free(MPI_COMM_WORLD);
+      xbt_barrier_destroy(process_data[0]->finalization_barrier);
+  }else{
+      smpi_deployment_cleanup_instances();
   }
   MPI_COMM_WORLD = MPI_COMM_NULL;
   for (i = 0; i < count; i++) {
@@ -480,9 +457,7 @@ void smpi_global_destroy(void)
   xbt_free(process_data);
   process_data = NULL;
 
-  if(index_to_process_data){
-      xbt_free(index_to_process_data);
-  }
+  xbt_free(index_to_process_data);
   if(smpi_privatize_global_variables)
     smpi_destroy_global_memory_segments();
   smpi_free_static();