+/* 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;
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;
int pipe_length = count / segment;
int increment = segment * extent;
-
+ if (pipe_length==0) {
+ XBT_WARN("MPI_bcast_flattree_pipeline use default MPI_bcast_flattree.");
+ return smpi_coll_tuned_bcast_flattree(buff, count, data_type, root, comm);
+ }
rank = smpi_comm_rank(comm);
num_procs = smpi_comm_size(comm);