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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2017 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 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) 2006-2007 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2006-2009 University of Houston. All rights reserved.
* Copyright (c) 2012-2013 Inria. All rights reserved.
* Copyright (c) 2014-2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2018-2024 Triad National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/mca/pml/pml.h"
#include "ompi/communicator/communicator.h"
#include "ompi/request/request.h"
#include "ompi/memchecker.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Intercomm_create_from_groups = PMPI_Intercomm_create_from_groups
#endif
#define MPI_Intercomm_create_from_groups PMPI_Intercomm_create_from_groups
#endif
static const char FUNC_NAME[] = "MPI_Intercomm_create_from_groups";
int MPI_Intercomm_create_from_groups (MPI_Group local_group, int local_leader, MPI_Group remote_group,
int remote_leader, const char *tag, MPI_Info info, MPI_Errhandler errhandler,
MPI_Comm *newintercomm)
{
int rc, my_grp_rank, remote_grp_size;
MEMCHECKER(
memchecker_comm(local_comm);
memchecker_comm(bridge_comm);
);
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (NULL == errhandler ||
MPI_ERRHANDLER_NULL == errhandler ||
( OMPI_ERRHANDLER_TYPE_COMM != errhandler->eh_mpi_object_type &&
OMPI_ERRHANDLER_TYPE_PREDEFINED != errhandler->eh_mpi_object_type) ) {
return ompi_errhandler_invoke (NULL, MPI_COMM_NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_ARG,FUNC_NAME);
}
if (NULL == info || ompi_info_is_freed(info)) {
return ompi_errhandler_invoke (errhandler, MPI_COMM_NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_INFO, FUNC_NAME);
}
if (NULL == tag) {
return ompi_errhandler_invoke (errhandler, MPI_COMM_NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_TAG, FUNC_NAME);
}
if (NULL == newintercomm) {
return ompi_errhandler_invoke (errhandler, MPI_COMM_NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_ARG, FUNC_NAME);
}
my_grp_rank = ompi_group_rank((ompi_group_t *)local_group);
if (local_leader == my_grp_rank) {
if (NULL == local_group || NULL == remote_group) {
return ompi_errhandler_invoke (errhandler, MPI_COMM_NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_GROUP, FUNC_NAME);
}
remote_grp_size = ompi_group_size((ompi_group_t *)remote_group);
if (remote_leader >= remote_grp_size) {
rc = ompi_errhandler_invoke (errhandler, MPI_COMM_NULL, OMPI_ERRHANDLER_TYPE_COMM,
MPI_ERR_ARG, FUNC_NAME);
return rc;
}
}
}
rc = ompi_intercomm_create_from_groups (local_group, local_leader, remote_group, remote_leader, tag,
&info->super, errhandler, newintercomm);
if (MPI_SUCCESS != rc) {
return ompi_errhandler_invoke (errhandler, MPI_COMM_NULL, errhandler->eh_mpi_object_type,
rc, FUNC_NAME);
}
return rc;
}
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