+/* 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"
-#ifndef NUM_CORE
-#define NUM_CORE 8
-#endif
int smpi_coll_tuned_allgather_smp_simple(void *send_buf, int scount,
MPI_Datatype stype, void *recv_buf,
int src, dst, comm_size, rank;
comm_size = smpi_comm_size(comm);
- 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;
+ if(smpi_comm_get_leaders_comm(comm)==MPI_COMM_NULL){
+ smpi_comm_init_smp(comm);
+ }
+ int num_core=1;
+ if (smpi_comm_is_uniform(comm)){
+ num_core = smpi_comm_size(smpi_comm_get_intra_comm(comm));
+ }
if(comm_size%num_core)
THROWF(arg_error,0, "allgather SMP simple algorithm can't be used with non multiple of NUM_CORE=%d number of processes ! ", num_core);