169 строки
6.2 KiB
C
169 строки
6.2 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 (c) 2008-2014 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2012 Los Alamos National Security, LLC.
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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 <stdlib.h>
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#include <string.h>
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#include "mpi.h"
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#include "opal/util/show_help.h"
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#include "ompi/constants.h"
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#include "opal/class/opal_list.h"
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#include "opal/util/output.h"
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#include "opal/mca/mca.h"
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#include "opal/mca/base/base.h"
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#include "opal/mca/base/mca_base_component_repository.h"
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#include "ompi/mca/rte/rte.h"
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#include "ompi/mca/coll/coll.h"
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#include "ompi/mca/coll/base/base.h"
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/*
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* Private functions
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*/
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static int init_query(const mca_base_component_t * ls,
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bool enable_progress_threads,
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bool enable_mpi_threads);
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static int init_query_2_0_0(const mca_base_component_t * ls,
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bool enable_progress_threads,
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bool enable_mpi_threads);
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/*
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* Scan down the list of successfully opened components and query each of
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* them (the opened list will be one or more components. If the user
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* requested a specific component, it will be the only component in the
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* opened list). Create and populate the available list of all
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* components who indicate that they want to be considered for selection.
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* Close all components who do not want to be considered for selection,
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* and destroy the opened list.
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*
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* Also find the basic component while we're doing all of this, and save
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* it in a global variable so that we can find it easily later (e.g.,
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* during scope selection).
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*/
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int mca_coll_base_find_available(bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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mca_base_component_list_item_t *cli, *next;
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const mca_base_component_t *component;
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/* The list of components that we should check has already been
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established in mca_coll_base_open. */
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OPAL_LIST_FOREACH_SAFE(cli, next, &ompi_coll_base_framework.framework_components, mca_base_component_list_item_t) {
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component = cli->cli_component;
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/* Call a subroutine to do the work, because the component may
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represent different versions of the coll MCA. */
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if (OMPI_SUCCESS != init_query(component, enable_progress_threads,
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enable_mpi_threads)) {
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/* If the component doesn't want to run, then close it.
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Now close it out and release it from the DSO repository (if it's there). */
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opal_list_remove_item(&ompi_coll_base_framework.framework_components, &cli->super);
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mca_base_component_close(component, ompi_coll_base_framework.framework_output);
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OBJ_RELEASE(cli);
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}
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}
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/* If we have no collective components available, it's an error.
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Thanks for playing! */
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if (opal_list_get_size(&ompi_coll_base_framework.framework_components) == 0) {
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:find_available: no coll components available!");
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opal_show_help("help-mca-base.txt", "find-available:none-found", true,
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"coll");
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return OMPI_ERROR;
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}
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/* All done */
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return OMPI_SUCCESS;
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}
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/*
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* Query a component, see if it wants to run at all. If it does, save
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* some information. If it doesn't, close it.
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*/
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static int init_query(const mca_base_component_t * component,
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bool enable_progress_threads, bool enable_mpi_threads)
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{
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int ret;
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:find_available: querying coll component %s",
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component->mca_component_name);
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/* This component has already been successfully opened. So now
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query it. */
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if (2 == component->mca_type_major_version &&
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0 == component->mca_type_minor_version &&
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0 == component->mca_type_release_version) {
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ret = init_query_2_0_0(component, enable_progress_threads,
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enable_mpi_threads);
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} else {
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/* Unrecognized coll API version */
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:find_available: unrecognized coll API version (%d.%d.%d, ignored)",
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component->mca_type_major_version,
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component->mca_type_minor_version,
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component->mca_type_release_version);
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return OMPI_ERROR;
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}
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/* Query done -- look at the return value to see what happened */
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if (OMPI_SUCCESS != ret) {
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:find_available: coll component %s is not available",
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component->mca_component_name);
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} else {
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opal_output_verbose(10, ompi_coll_base_framework.framework_output,
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"coll:find_available: coll component %s is available",
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component->mca_component_name);
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}
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/* All done */
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return ret;
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}
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/*
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* Query a specific component, coll v2.0.0
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*/
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static int init_query_2_0_0(const mca_base_component_t * component,
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bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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mca_coll_base_component_2_0_0_t *coll =
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(mca_coll_base_component_2_0_0_t *) component;
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return coll->collm_init_query(enable_progress_threads,
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enable_mpi_threads);
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}
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