1 /*
2 * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
3 * University Research and Technology
4 * Corporation. All rights reserved.
5 * Copyright (c) 2004-2005 The University of Tennessee and The University
6 * of Tennessee Research Foundation. All rights
7 * reserved.
8 * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
9 * University of Stuttgart. All rights reserved.
10 * Copyright (c) 2004-2005 The Regents of the University of California.
11 * All rights reserved.
12 * Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
13 * Copyright (c) 2015 Research Organization for Information Science
14 * and Technology (RIST). All rights reserved.
15 * $COPYRIGHT$
16 *
17 * Additional copyrights may follow
18 *
19 * $HEADER$
20 */
21 #include "ompi_config.h"
22 #include <stdio.h>
23
24 #include "ompi/mpi/c/bindings.h"
25 #include "ompi/runtime/params.h"
26 #include "ompi/communicator/communicator.h"
27 #include "ompi/errhandler/errhandler.h"
28 #include "ompi/group/group.h"
29
30 #if OMPI_BUILD_MPI_PROFILING
31 #if OPAL_HAVE_WEAK_SYMBOLS
32 #pragma weak MPI_Group_size = PMPI_Group_size
33 #endif
34 #define MPI_Group_size PMPI_Group_size
35 #endif
36
37 static const char FUNC_NAME[] = "MPI_Group_size";
38
39
40 int MPI_Group_size(MPI_Group group, int *size)
41 {
42
43 OPAL_CR_NOOP_PROGRESS();
44
45 /* error checking */
46 if( MPI_PARAM_CHECK ) {
47 OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
48
49 if( (MPI_GROUP_NULL == group) || (NULL == group) ) {
50 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_GROUP,
51 FUNC_NAME);
52 } else if (NULL == size) {
53 return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_ARG,
54 FUNC_NAME);
55 }
56 }
57
58 *size=ompi_group_size((ompi_group_t *)group);
59
60 return MPI_SUCCESS;
61 }