942f9e8f8d
comment in ompi_comm_invalid() in source:/trunk/ompi/communicator/communicator.h. Short version: - ompi_comm_invalid() returns TRUE for MPI_COMM_NULL - therefore MPI_COMM_C2F needs to explicitly check for MPI_COMM_NULL (because it uses ompi_comm_invalid()) - make ~20 MPI functions only call ompi_comm_invalid() instead of calling ompi_comm_invalid() *and* checking for MPI_COMM_NULL (~40 MPI functions already only called ompi_comm_invalid() -- we should be consistent) - similar issue for ompi_win_invalid(), so I added a cross-referencing comment in win.h and fixed MPI_WIN_SET_NAME to only call ompi_win_invalid() (and not check for MPI_WIN_NULL) This commit was SVN r9970.
110 строки
3.6 KiB
C
110 строки
3.6 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 (c) 2006 Cisco Systems, Inc. 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 "ompi/mpi/c/bindings.h"
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#include "ompi/info/info.h"
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#include "orte/mca/ns/ns.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Comm_connect = PMPI_Comm_connect
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "ompi/mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Comm_connect";
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int MPI_Comm_connect(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=1; /* yes, we are the active part in this game */
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ompi_communicator_t *newcomp=MPI_COMM_NULL;
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orte_process_name_t *port_proc_name=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 (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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*
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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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* translate the port_name string into the according process_name_t
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* structure.
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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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if (ORTE_SUCCESS != (rc = orte_ns.convert_string_to_process_name(&port_proc_name, tmp_port))) {
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return rc;
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}
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if ( NULL == port_proc_name ) {
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*newcomm = MPI_COMM_NULL;
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return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_PORT, FUNC_NAME);
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}
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free (tmp_port);
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}
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rc = ompi_comm_connect_accept (comm, root, port_proc_name, send_first,
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&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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