97 строки
3.2 KiB
C
97 строки
3.2 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include "mpi/c/bindings.h"
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#include "ompi/info/info.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Comm_accept = PMPI_Comm_accept
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Comm_accept";
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int MPI_Comm_accept(char *port_name, MPI_Info info, int root,
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MPI_Comm comm, MPI_Comm *newcomm)
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{
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int rank, rc;
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int send_first=0; /*wrong, we receive first */
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ompi_communicator_t *newcomp=MPI_COMM_NULL;
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char *tmp_port=NULL;
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orte_rml_tag_t tag;
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if ( MPI_PARAM_CHECK ) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if ( MPI_COMM_NULL == comm || ompi_comm_invalid (comm)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
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FUNC_NAME);
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}
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if ( OMPI_COMM_IS_INTER(comm)) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_COMM,
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FUNC_NAME);
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}
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if ( (0 > root) || (ompi_comm_size(comm) <= root) ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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if ( NULL == newcomm ) {
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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if (NULL == info || ompi_info_is_freed(info)) {
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return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_INFO,
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FUNC_NAME);
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}
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}
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rank = ompi_comm_rank ( comm );
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if ( MPI_PARAM_CHECK ) {
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if ( rank == root ) {
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if ( NULL == port_name )
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG,
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FUNC_NAME);
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}
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}
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/* parse info object. no prefedined values for this function in MPI-2
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* so lets ignore it for the moment.
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* if ( rank == root && MPI_INFO_NULL != info ) {
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* }
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*/
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/*
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* Our own port_name is not of interest here, so we pass in NULL.
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* The two leaders will figure this out later. However, we need the tag.
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*/
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if ( rank == root ) {
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tmp_port = ompi_parse_port(port_name, &tag);
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free (tmp_port);
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}
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rc = ompi_comm_connect_accept (comm, root, NULL, send_first, &newcomp, tag);
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*newcomm = newcomp;
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OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME );
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}
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