+/* 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 <star-reduction.c>
MPI_Op op, int root,
MPI_Comm comm)
{
- int rank;
- rank = smpi_comm_rank(comm);
-
- int tag = 50;
+ int rank = smpi_comm_rank(comm);
+ int tag = -COLL_TAG_REDUCE;
MPI_Status status;
MPI_Request request;
MPI_Request *send_request_array;
MPI_Status temp_status_array[MAX_NODE];
- int size;
+ int size = smpi_comm_size(comm);
int i;
int sent_count;
/* source and destination */
int to, from;
- size=smpi_comm_size(comm);
- rank=smpi_comm_rank(comm);
-
-
/* segment is segment size in number of elements (not bytes) */
int segment = reduce_arrival_pattern_aware_segment_size_in_byte / extent;
}
char *tmp_buf;
- tmp_buf = (char *) xbt_malloc(count * extent);
+ tmp_buf = (char *) smpi_get_tmp_sendbuffer(count * extent);
smpi_mpi_sendrecv(buf, count, datatype, rank, tag, rbuf, count, datatype, rank,
tag, comm, &status);
for (i = 1; i < size; i++) {
if (already_received[i] == 0) {
- smpi_mpi_iprobe(i, MPI_ANY_TAG, MPI_COMM_WORLD, &flag_array[i],
+ smpi_mpi_iprobe(i, MPI_ANY_TAG, comm, &flag_array[i],
MPI_STATUSES_IGNORE);
simcall_process_sleep(0.0001);
}
/* 1-byte message arrive */
if ((flag_array[i] == 1) && (already_received[i] == 0)) {
- smpi_mpi_recv(temp_buf, 1, MPI_CHAR, i, tag, MPI_COMM_WORLD, &status);
+ smpi_mpi_recv(temp_buf, 1, MPI_CHAR, i, tag, comm, &status);
header_buf[header_index] = i;
header_index++;
sent_count++;
to = header_buf[myordering + 1];
}
from = header_buf[myordering - 1];
- smpi_mpi_recv(tmp_buf, count, datatype, header_buf[myordering - 1], tag,
- comm, &status);
+ smpi_mpi_recv(tmp_buf, count, datatype, from, tag, comm, &status);
smpi_op_apply(op, tmp_buf, rbuf, &count, &datatype);
smpi_mpi_send(rbuf, count, datatype, to, tag, comm);
}
//if (i == rank)
//continue;
if ((already_received[i] == 0) && (will_send[i] == 0)) {
- smpi_mpi_iprobe(i, MPI_ANY_TAG, MPI_COMM_WORLD, &flag_array[i],
+ smpi_mpi_iprobe(i, MPI_ANY_TAG, comm, &flag_array[i],
&temp_status_array[i]);
if (flag_array[i] == 1) {
will_send[i] = 1;
- smpi_mpi_recv(&temp_buf[i], 1, MPI_CHAR, i, tag, MPI_COMM_WORLD,
+ smpi_mpi_recv(&temp_buf[i], 1, MPI_CHAR, i, tag, comm,
&status);
//printf("recv from %d\n",i);
i = 1;
comm);
}
- free(tmp_buf);
+ smpi_free_tmp_buffer(tmp_buf);
return MPI_SUCCESS;
}