X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e7c0c67af63b3979a597a66e5e1c8b0435fc6e19..48af4c8427d171d3e05d39116b02e441f2391374:/src/smpi/colls/allreduce-smp-rdb.c

diff --git a/src/smpi/colls/allreduce-smp-rdb.c b/src/smpi/colls/allreduce-smp-rdb.c
index ee6037917e..5b67e5a975 100644
--- a/src/smpi/colls/allreduce-smp-rdb.c
+++ b/src/smpi/colls/allreduce-smp-rdb.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) 
@@ -31,10 +37,13 @@ int smpi_coll_tuned_allreduce_smp_rdb(void *send_buf, void *recv_buf, int count,
 {
   int comm_size, rank;
   void *tmp_buf;
-  int tag = 50;
+  int tag = COLL_TAG_ALLREDUCE;
   int mask, src, dst;
   MPI_Status status;
-  int num_core = NUM_CORE;
+  int num_core = simcall_host_get_core(SIMIX_host_self());
+  // do we use the default one or the number of cores in the platform ?
+  // if the number of cores is one, the platform may be simulated with 1 node = 1 core
+  if (num_core == 1) num_core = NUM_CORE;
   /*
      #ifdef MPICH2_REDUCTION
      MPI_User_function * uop = MPIR_Op_table[op % 16 - 1];
@@ -71,7 +80,7 @@ int smpi_coll_tuned_allreduce_smp_rdb(void *send_buf, void *recv_buf, int count,
       src = (inter_rank * num_core) + (intra_rank | mask);
       if (src < comm_size) {
         smpi_mpi_recv(tmp_buf, count, dtype, src, tag, comm, &status);
-        star_reduction(op, tmp_buf, recv_buf, &count, &dtype);
+        smpi_op_apply(op, tmp_buf, recv_buf, &count, &dtype);
       }
     } else {
       dst = (inter_rank * num_core) + (intra_rank & (~mask));
@@ -108,7 +117,7 @@ int smpi_coll_tuned_allreduce_smp_rdb(void *send_buf, void *recv_buf, int count,
       } else {
         src = rank - num_core;
         smpi_mpi_recv(tmp_buf, count, dtype, src, tag, comm, &status);
-        star_reduction(op, tmp_buf, recv_buf, &count, &dtype);
+        smpi_op_apply(op, tmp_buf, recv_buf, &count, &dtype);
         newrank = inter_rank / 2;
       }
     } else {
@@ -134,7 +143,7 @@ int smpi_coll_tuned_allreduce_smp_rdb(void *send_buf, void *recv_buf, int count,
         /* exchange data in rdb manner */
         smpi_mpi_sendrecv(recv_buf, count, dtype, dst, tag, tmp_buf, count, dtype,
                      dst, tag, comm, &status);
-        star_reduction(op, tmp_buf, recv_buf, &count, &dtype);
+        smpi_op_apply(op, tmp_buf, recv_buf, &count, &dtype);
         mask <<= 1;
       }
     }