root/ompi/mpi/c/group_intersection.c

DEFINITIONS

1. MPI_Group_intersection

   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      University of Houston. All rights reserved.
  13  * Copyright (c) 2006      Cisco Systems, Inc.  All rights reserved.
  14  * Copyright (c) 2015      Research Organization for Information Science
  15  *                         and Technology (RIST). All rights reserved.
  16  * $COPYRIGHT$
  17  *
  18  * Additional copyrights may follow
  19  *
  20  * $HEADER$
  21  */
  22 #include "ompi_config.h"
  23 #include <stdio.h>
  24 
  25 #include "ompi/mpi/c/bindings.h"
  26 #include "ompi/runtime/params.h"
  27 #include "ompi/group/group.h"
  28 #include "ompi/errhandler/errhandler.h"
  29 #include "ompi/communicator/communicator.h"
  30 
  31 #if OMPI_BUILD_MPI_PROFILING
  32 #if OPAL_HAVE_WEAK_SYMBOLS
  33 #pragma weak MPI_Group_intersection = PMPI_Group_intersection
  34 #endif
  35 #define MPI_Group_intersection PMPI_Group_intersection
  36 #endif
  37 
  38 static const char FUNC_NAME[] = "MPI_Group_intersection";
  39 
  40 
  41 int MPI_Group_intersection(MPI_Group group1, MPI_Group group2,
  42         MPI_Group *new_group)
  43 {
  44   int err;
  45 
  46   if ( MPI_PARAM_CHECK ) {
  47       OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
  48 
  49       /* verify that groups are valid */
  50       if ( (MPI_GROUP_NULL == group1) || (MPI_GROUP_NULL == group2) ||
  51            ( NULL == group1) || (NULL == group2) ||
  52            (NULL == new_group) ) {
  53           return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_GROUP,
  54                                         FUNC_NAME);
  55       }
  56   }
  57 
  58   OPAL_CR_ENTER_LIBRARY();
  59 
  60   err = ompi_group_intersection ( group1, group2,  new_group );
  61   OMPI_ERRHANDLER_RETURN(err, MPI_COMM_WORLD, err, FUNC_NAME );
  62 }