X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/1faf1e4ac5d8295ab562c45a5507a471ad4540a6..38ea8eebef9013b0666d21d82493a559b5a27ac6:/src/smpi/colls/allreduce-smp-binomial-pipeline.c

diff --git a/src/smpi/colls/allreduce-smp-binomial-pipeline.c b/src/smpi/colls/allreduce-smp-binomial-pipeline.c
index 68c99f5bcf..e831be95fd 100644
--- a/src/smpi/colls/allreduce-smp-binomial-pipeline.c
+++ b/src/smpi/colls/allreduce-smp-binomial-pipeline.c
@@ -1,3 +1,9 @@
+/* Copyright (c) 2013-2014. The SimGrid Team.
+ * All rights reserved.                                                     */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
 #include "colls_private.h"
 /* IMPLEMENTED BY PITCH PATARASUK 
    Non-topoloty-specific (however, number of cores/node need to be changed) 
@@ -6,11 +12,7 @@
    inter-communication
    The communication are done in a pipeline fashion */
 
-/* change number of core per smp-node
-   we assume that number of core per process will be the same for all implementations */
-#ifndef NUM_CORE
-#define NUM_CORE 8
-#endif
+
 
 /* this is a default segment size for pipelining, 
    but it is typically passed as a command line argument */
@@ -46,7 +48,13 @@ int smpi_coll_tuned_allreduce_smp_binomial_pipeline(void *send_buf,
   int tag = COLL_TAG_ALLREDUCE;
   int mask, src, dst;
   MPI_Status status;
-  int num_core = NUM_CORE;
+  if(smpi_comm_get_leaders_comm(comm)==MPI_COMM_NULL){
+    smpi_comm_init_smp(comm);
+  }
+  int num_core=1;
+  if (smpi_comm_is_uniform(comm)){
+    num_core = smpi_comm_size(smpi_comm_get_intra_comm(comm));
+  }
 
   comm_size = smpi_comm_size(comm);
   rank = smpi_comm_rank(comm);