172 строки
6.7 KiB
C
172 строки
6.7 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) 2004-2011 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) 2008-2011 University of Houston. 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 "mpi.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/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/fcoll/fcoll.h"
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#include "ompi/mca/fcoll/base/base.h"
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#include "opal/util/output.h"
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opal_list_t mca_fcoll_base_modules_available;
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bool mca_fcoll_base_modules_available_valid = false;
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static int init_query(const mca_base_component_t *m,
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mca_base_component_priority_list_item_t *entry,
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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 *component,
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mca_base_component_priority_list_item_t *entry,
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bool enable_progress_threads,
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bool enable_mpi_threads);
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int mca_fcoll_base_find_available(bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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bool found = false;
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mca_base_component_priority_list_item_t *entry;
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opal_list_item_t *p;
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/* Initialize the list */
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OBJ_CONSTRUCT(&mca_fcoll_base_components_available, opal_list_t);
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mca_fcoll_base_components_available_valid = true;
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/* The list of components which we should check is already present
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in mca_fcoll_base_components_opened, which was established in
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mca_fcoll_base_open */
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for (found = false,
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p = opal_list_remove_first (&mca_fcoll_base_components_opened);
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NULL != p;
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p = opal_list_remove_first (&mca_fcoll_base_components_opened)) {
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entry = OBJ_NEW(mca_base_component_priority_list_item_t);
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entry->super.cli_component =
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((mca_base_component_list_item_t *)p)->cli_component;
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/* Now for this entry, we have to determine the thread level. Call
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a subroutine to do the job for us */
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if (OMPI_SUCCESS == init_query(entry->super.cli_component, entry,
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enable_progress_threads,
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enable_mpi_threads)) {
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/* Save the results in the list. The priority is not relvant at
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this point in time. But we save the thread arguments so that
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the initial selection algorithm can negotiate overall thread
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level for this process */
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entry->cpli_priority = 0;
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opal_list_append (&mca_fcoll_base_components_available,
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(opal_list_item_t *) entry);
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found = true;
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} else {
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/* The component does not want to run, so close it. Its close()
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has already been invoked. Close it out of the DSO repository
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(if it is there in the repository) */
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mca_base_component_repository_release(entry->super.cli_component);
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OBJ_RELEASE(entry);
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}
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/* Free entry from the "opened" list */
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OBJ_RELEASE(p);
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}
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/* The opened list is no longer necessary, so we can free it */
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OBJ_DESTRUCT (&mca_fcoll_base_components_opened);
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mca_fcoll_base_components_opened_valid = false;
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/* There should atleast be one fcoll component which was available */
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if (false == found) {
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/* Need to free all items in the list */
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OBJ_DESTRUCT(&mca_fcoll_base_components_available);
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mca_fcoll_base_components_available_valid = false;
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opal_output_verbose (10, mca_fcoll_base_output,
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"fcoll:find_available: no fcoll components available!");
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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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static int init_query(const mca_base_component_t *m,
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mca_base_component_priority_list_item_t *entry,
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bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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int ret;
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opal_output_verbose(10, mca_fcoll_base_output,
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"fcoll:find_available: querying fcoll component %s",
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m->mca_component_name);
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/* This component has been successfully opened, now try to query it */
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if (2 == m->mca_type_major_version &&
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0 == m->mca_type_minor_version &&
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0 == m->mca_type_release_version) {
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ret = init_query_2_0_0(m, entry, enable_progress_threads,
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enable_mpi_threads);
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} else {
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/* unrecognised API version */
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opal_output_verbose(10, mca_fcoll_base_output,
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"fcoll:find_available:unrecognised fcoll API version (%d.%d.%d)",
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m->mca_type_major_version,
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m->mca_type_minor_version,
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m->mca_type_release_version);
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return OMPI_ERROR;
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}
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/* Query done -- look at return value to see what happened */
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if (OMPI_SUCCESS != ret) {
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opal_output_verbose(10, mca_fcoll_base_output,
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"fcoll:find_available fcoll component %s is not available",
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m->mca_component_name);
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if (NULL != m->mca_close_component) {
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m->mca_close_component();
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}
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} else {
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opal_output_verbose(10, mca_fcoll_base_output,
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"fcoll:find_avalable: fcoll component %s is available",
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m->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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static int init_query_2_0_0(const mca_base_component_t *component,
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mca_base_component_priority_list_item_t *entry,
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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_fcoll_base_component_2_0_0_t *fcoll =
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(mca_fcoll_base_component_2_0_0_t *) component;
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return fcoll->fcollm_init_query(enable_progress_threads,
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enable_mpi_threads);
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}
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