X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/15badc71ce964f6dae6428c9a4c0198fad5d4936..21446da234b79358c6f7ed918e582e7e5a36d8b3:/src/smpi/colls/bcast-flattree-pipeline.c

diff --git a/src/smpi/colls/bcast-flattree-pipeline.c b/src/smpi/colls/bcast-flattree-pipeline.c
index 9033bf571d..9b94eb214e 100644
--- a/src/smpi/colls/bcast-flattree-pipeline.c
+++ b/src/smpi/colls/bcast-flattree-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"
 
 int flattree_segment_in_byte = 8192;
@@ -8,12 +14,13 @@ smpi_coll_tuned_bcast_flattree_pipeline(void *buff, int count,
                                         MPI_Comm comm)
 {
   int i, j, rank, num_procs;
-  int tag = 1;
+  int tag = COLL_TAG_BCAST;
 
   MPI_Aint extent;
   extent = smpi_datatype_get_extent(data_type);
 
   int segment = flattree_segment_in_byte / extent;
+  segment =  segment == 0 ? 1 :segment; 
   int pipe_length = count / segment;
   int increment = segment * extent;
   if (pipe_length==0) {