+/* 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"
/* IMPLEMENTED BY PITCH PATARASUK
Non-topoloty-specific (however, number of cores/node need to be changed)
{
int comm_size, rank;
void *tmp_buf;
- int tag = 50;
+ int tag = COLL_TAG_ALLREDUCE;
int mask, src, dst;
MPI_Status status;
- int num_core = NUM_CORE;
+ 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;
/*
#ifdef MPICH2_REDUCTION
MPI_User_function * uop = MPIR_Op_table[op % 16 - 1];
src = (inter_rank * num_core) + (intra_rank | mask);
if (src < comm_size) {
smpi_mpi_recv(tmp_buf, count, dtype, src, tag, comm, &status);
- star_reduction(op, tmp_buf, recv_buf, &count, &dtype);
+ smpi_op_apply(op, tmp_buf, recv_buf, &count, &dtype);
}
} else {
dst = (inter_rank * num_core) + (intra_rank & (~mask));
} else {
src = rank - num_core;
smpi_mpi_recv(tmp_buf, count, dtype, src, tag, comm, &status);
- star_reduction(op, tmp_buf, recv_buf, &count, &dtype);
+ smpi_op_apply(op, tmp_buf, recv_buf, &count, &dtype);
newrank = inter_rank / 2;
}
} else {
/* exchange data in rdb manner */
smpi_mpi_sendrecv(recv_buf, count, dtype, dst, tag, tmp_buf, count, dtype,
dst, tag, comm, &status);
- star_reduction(op, tmp_buf, recv_buf, &count, &dtype);
+ smpi_op_apply(op, tmp_buf, recv_buf, &count, &dtype);
mask <<= 1;
}
}