A
lgorithmique
N
umérique
D
istribuée
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Merge branch 'master' of git+ssh://scm.gforge.inria.fr//gitroot/simgrid/simgrid
[simgrid.git]
/
src
/
smpi
/
colls
/
allgatherv-pair.c
diff --git
a/src/smpi/colls/allgatherv-pair.c
b/src/smpi/colls/allgatherv-pair.c
index
d60e77a
..
b6eea73
100644
(file)
--- a/
src/smpi/colls/allgatherv-pair.c
+++ b/
src/smpi/colls/allgatherv-pair.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"
/*****************************************************************************
#include "colls_private.h"
/*****************************************************************************
@@
-66,15
+72,19
@@
smpi_coll_tuned_allgatherv_pair(void *send_buff, int send_count,
{
MPI_Aint extent;
{
MPI_Aint extent;
-
int i, src, dst, rank, num_procs
;
- int tag =
1
;
+
unsigned int i, src, dst
;
+ int tag =
COLL_TAG_ALLGATHERV
;
MPI_Status status;
char *send_ptr = (char *) send_buff;
char *recv_ptr = (char *) recv_buff;
MPI_Status status;
char *send_ptr = (char *) send_buff;
char *recv_ptr = (char *) recv_buff;
- rank = smpi_comm_rank(comm);
- num_procs = smpi_comm_size(comm);
+ unsigned int rank = smpi_comm_rank(comm);
+ unsigned int num_procs = smpi_comm_size(comm);
+
+ if((num_procs&(num_procs-1)))
+ THROWF(arg_error,0, "allgatherv pair algorithm can't be used with non power of two number of processes ! ");
+
extent = smpi_datatype_get_extent(send_type);
// local send/recv
extent = smpi_datatype_get_extent(send_type);
// local send/recv