1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
2 /*
3 * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
4 * University Research and Technology
5 * Corporation. All rights reserved.
6 * Copyright (c) 2004-2005 The University of Tennessee and The University
7 * of Tennessee Research Foundation. All rights
8 * reserved.
9 * Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
10 * University of Stuttgart. All rights reserved.
11 * Copyright (c) 2004-2005 The Regents of the University of California.
12 * All rights reserved.
13 * Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
14 * Copyright (c) 2013 Los Alamos National Security, LLC. All rights
15 * reserved.
16 * $COPYRIGHT$
17 *
18 * Additional copyrights may follow
19 *
20 * $HEADER$
21 */
22
23 #include "ompi_config.h"
24
25 #include <stdio.h>
26
27 #include "opal_stdint.h"
28 #include "ompi/op/op.h"
29 #include "ompi/mpi/c/bindings.h"
30
31 int MPI_Allreduce(const void *sendbuf, void *recvbuf, int count,
32 MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
33 {
34 char typename[MPI_MAX_OBJECT_NAME], commname[MPI_MAX_OBJECT_NAME];
35 int len;
36 int rank;
37
38 PMPI_Comm_rank(MPI_COMM_WORLD, &rank);
39 PMPI_Type_get_name(datatype, typename, &len);
40 PMPI_Comm_get_name(comm, commname, &len);
41
42 fprintf(stderr, "MPI_ALLREDUCE[%d]: sendbuf %0" PRIxPTR " recvbuf %0" PRIxPTR " count %d datatype %s op %s comm %s\n",
43 rank, (uintptr_t)sendbuf, (uintptr_t)recvbuf, count, typename, op->o_name, commname);
44 fflush(stderr);
45
46 return PMPI_Allreduce(sendbuf, recvbuf, count, datatype, op, comm);
47 }