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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006 University of Houston. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/group/group.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/communicator/communicator.h"
#include "ompi/proc/proc.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Group_excl = PMPI_Group_excl
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Group_excl";
int MPI_Group_excl(MPI_Group group, int n, int *ranks,
MPI_Group *new_group)
{
ompi_group_t *group_pointer = (ompi_group_t *)group;
int i, err, group_size;
group_size = ompi_group_size ( group_pointer);
if( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
/* verify that group is valid group */
if ( (MPI_GROUP_NULL == group) || (NULL == group) ||
(NULL == ranks) ) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_GROUP,
FUNC_NAME);
}
/* check that new group is no larger than old group */
if ( n > group_size) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_GROUP,
FUNC_NAME);
}
/* check to see if procs are within range */
for( i=0 ; i < n ; i++ ) {
if( ( 0 > ranks[i] ) || (ranks[i] >= group_size)){
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_RANK,
FUNC_NAME );
}
}
} /* end if( MPI_CHECK_ARGS) */
if ( n == group_size ) {
*new_group = MPI_GROUP_EMPTY;
OBJ_RETAIN(MPI_GROUP_EMPTY);
return MPI_SUCCESS;
}
err = ompi_group_excl ( group, n, ranks, new_group );
OMPI_ERRHANDLER_RETURN(err, MPI_COMM_WORLD, err, FUNC_NAME );
}
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