85 строки
2.5 KiB
C
85 строки
2.5 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights 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 <string.h>
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#include <stdlib.h>
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#include "mpi.h"
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#include "communicator/communicator.h"
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#include "util/show_help.h"
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#include "mca/mca.h"
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#include "mca/base/base.h"
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#include "mca/coll/coll.h"
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#include "mca/coll/base/base.h"
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extern opal_list_t mca_coll_base_available;
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/*
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* This function is called to shut down a collective module on a
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* specific communicator. If we used some of the basic module
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* functions in here to fill in NULL pointers, we also need to shut
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* down the basic module.
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*/
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int mca_coll_base_comm_unselect(ompi_communicator_t *comm)
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{
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int err;
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/* Shut down the selected module. Note that this pointer can be
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NULL if only the basic module was selected. */
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if (NULL != comm->c_coll_selected_module &&
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comm->c_coll_basic_module != comm->c_coll_selected_module &&
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NULL != comm->c_coll_selected_module->coll_module_finalize) {
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err = comm->c_coll_selected_module->coll_module_finalize(comm);
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if (OMPI_SUCCESS != err) {
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ompi_show_help("help-mca-coll-base",
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"comm-unselect:failed-finalize", true);
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return err;
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}
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}
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/* If the basic module was used at all (even if it was just to fill
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in NULL pointers for functions that the selected module did not
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provide), it may have hung stuff on c_coll_comm_basic, and
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therefore needs to be finalized in this scope. */
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if (NULL != comm->c_coll_basic_module &&
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NULL != comm->c_coll_basic_module->coll_module_finalize) {
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err = comm->c_coll_basic_module->coll_module_finalize(comm);
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if (OMPI_SUCCESS != err) {
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ompi_show_help("help-mca-coll-base",
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"comm-unselect:basic-failed-finalize", true);
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return err;
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}
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}
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/* Zero them all out, since they act as sentinel values */
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comm->c_coll_selected_data = NULL;
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comm->c_coll_selected_module = NULL;
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comm->c_coll_basic_data = NULL;
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comm->c_coll_basic_module = NULL;
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/* All done */
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return OMPI_SUCCESS;
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}
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