+/* 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 rank = smpi_comm_rank(comm);
int tag = -COLL_TAG_REDUCE;
MPI_Status status;
MPI_Request request;
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;
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);
}