+/* 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"
/*
return 0;
rank = smpi_comm_rank(comm);
comm_size = smpi_comm_size(comm);
+
- extent = smpi_datatype_get_extent(datatype);
+ extent = smpi_datatype_get_extent(datatype);
+ /* If I'm not the root, then my recvbuf may not be valid, therefore
+ I have to allocate a temporary one */
+ if (rank != root && !recvbuf) {
+ recvbuf = (void *)xbt_malloc(count * extent);
+ }
/* find nearest power-of-two less than or equal to comm_size */
pof2 = 1;
while (pof2 <= comm_size)