333 строки
12 KiB
C
333 строки
12 KiB
C
/*
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* Copyright (c) 2012 Mellanox Technologies, Inc.
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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 "oshmem_config.h"
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "oshmem/mca/memheap/base/base.h"
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#include "oshmem/mca/memheap/buddy/memheap_buddy.h"
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#include "opal/class/opal_list.h" /*TODO: included in spml/base/base.h remove this include */
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#include "opal/util/output.h"
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#include "orte/util/show_help.h"
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#include "opal/runtime/opal_progress.h"
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/* TODO: remove included in spml.h #include "opal/mca/mca.h" */
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#include "opal/mca/base/base.h"
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#include "opal/runtime/opal.h"
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#include "orte/mca/errmgr/errmgr.h"
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#include "orte/util/name_fns.h"
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#include "orte/runtime/orte_globals.h"
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#include "oshmem/constants.h"
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#include "oshmem/mca/spml/spml.h"
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#include "oshmem/mca/spml/base/base.h"
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#include "oshmem/proc/proc.h"
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typedef struct opened_component_t {
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opal_list_item_t super;
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mca_spml_base_component_t *om_component;
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} opened_component_t;
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/* TODO: Restore modex.
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static bool modex_reqd=false;
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*/
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/**
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* Function for selecting one component from all those that are
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* available.
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*
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* Call the init function on all available components and get their
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* priorities. Select the component with the highest priority. All
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* other components will be closed and unloaded. The selected component
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* will have all of its function pointers saved and returned to the
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* caller.
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*/
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int mca_spml_base_select(bool enable_progress_threads,
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bool enable_mpi_threads)
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{
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int i, priority = 0, best_priority = 0, num_spml = 0;
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int round = 0;
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opal_list_item_t *item = NULL;
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mca_base_component_list_item_t *cli = NULL;
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mca_spml_base_component_t *component = NULL, *best_component = NULL;
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mca_spml_base_module_t *module = NULL, *best_module = NULL;
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opal_list_t opened;
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opened_component_t *om = NULL;
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bool found_spml;
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/* TODO:Irit Consider restoring FT
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#if OPAL_ENABLE_FT == 1
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mca_spml_base_component_t *wrapper_component = NULL;
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mca_spml_base_module_t *wrapper_module = NULL;
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int wrapper_priority = -1;
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#endif
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Irit */
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/* Traverse the list of available components; call their init
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functions. */
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best_priority = -1;
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best_component = NULL;
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module = NULL;
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OBJ_CONSTRUCT(&opened, opal_list_t);
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for (round = 0; (round < 2) && (NULL == best_component); round++) {
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for (item = opal_list_get_first(&mca_spml_base_components_available);
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((opal_list_get_end(&mca_spml_base_components_available) != item) && (item != NULL));
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item = opal_list_get_next(item) ) {
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cli = (mca_base_component_list_item_t *) item;
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component = (mca_spml_base_component_t *) cli->cli_component;
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/* if there is an include list - item must be in the list to be included */
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if (0 == round) {
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found_spml = false;
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for( i = 0; i < opal_pointer_array_get_size(&mca_spml_base_spml); i++) {
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char * tmp_val = NULL;
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tmp_val = (char *) opal_pointer_array_get_item(&mca_spml_base_spml, i);
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if( NULL == tmp_val) {
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continue;
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}
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if(0 == strncmp(component->spmlm_version.mca_component_name,
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tmp_val, strlen(component->spmlm_version.mca_component_name)) ) {
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found_spml = true;
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break;
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}
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}
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}
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else {
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found_spml = true;
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}
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if(!found_spml && opal_pointer_array_get_size(&mca_spml_base_spml)) {
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SPML_VERBOSE( 10,"select: component %s not in the include list",
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component->spmlm_version.mca_component_name );
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continue;
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}
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/* if there is no init function - ignore it */
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if (NULL == component->spmlm_init) {
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SPML_VERBOSE( 10,"select: no init function; ignoring component %s",
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component->spmlm_version.mca_component_name );
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continue;
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}
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/* this is a spml that could be considered */
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num_spml++;
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/* Init component to get its priority */
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SPML_VERBOSE( 10,"select: initializing %s component %s",
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component->spmlm_version.mca_type_name,
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component->spmlm_version.mca_component_name );
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priority = best_priority;
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module = component->spmlm_init(&priority, enable_progress_threads,
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enable_mpi_threads);
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if (NULL == module) {
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SPML_VERBOSE( 10,"select: init returned failure for component %s",
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component->spmlm_version.mca_component_name );
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continue;
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}
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SPML_VERBOSE( 10,"select: init returned priority %d", priority );
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/* TODO: Consider restoring FT */
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/* Irit
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#if OPAL_ENABLE_FT == 1 */
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/* Determine if this is the wrapper component */
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/* if( priority <= SPML_SELECT_WRAPPER_PRIORITY) {
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SPML_VERBOSE( 10,"spml:select: Wrapper Component: Component %s was determined to be a Wrapper SPML with priority %d",
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component->pmlm_version.mca_component_name, priority );
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wrapper_priority = priority;
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wrapper_component = component;
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wrapper_module = module;
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continue;
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}*/
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/* Otherwise determine if this is the best component */
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/* else
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#endif
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Irit */
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if (priority > best_priority) {
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best_priority = priority;
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best_component = component;
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best_module = module;
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}
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om = (opened_component_t*)malloc(sizeof(opened_component_t));
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if (NULL == om) {
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return OSHMEM_ERR_OUT_OF_RESOURCE;
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}
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OBJ_CONSTRUCT(om, opal_list_item_t);
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om->om_component = component;
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opal_list_append(&opened, (opal_list_item_t*) om);
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}
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/* Sasha: don't think that we need this code, but it can still be useful for debugging */
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if ((0 == round) && (NULL == best_component)) {
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num_spml = 0;
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for( i = 0; i < opal_pointer_array_get_size(&mca_spml_base_spml); i++) {
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char * tmp_val = NULL;
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tmp_val = (char *) opal_pointer_array_get_item(&mca_spml_base_spml, i);
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if( NULL == tmp_val) {
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continue;
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}
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SPML_VERBOSE(1, "SPML %s cannot be selected", tmp_val);
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}
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}
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}
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/* Finished querying all components. Check for the bozo case. */
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if( NULL == best_component ) {
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orte_show_help("help-shmem-mca.txt", "find-available:none-found", true, "spml");
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for( i = 0; i < opal_pointer_array_get_size(&mca_spml_base_spml); i++) {
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char * tmp_val = NULL;
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tmp_val = (char *) opal_pointer_array_get_item(&mca_spml_base_spml, i);
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if( NULL == tmp_val) {
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continue;
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}
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orte_errmgr.abort(1, "SPML %s cannot be selected", tmp_val);
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}
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if(0 == i) {
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orte_errmgr.abort(2, "No spml component available. This shouldn't happen.");
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}
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}
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SPML_VERBOSE( 10,"selected %s best priority %d\n",
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best_component->spmlm_version.mca_component_name, best_priority);
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/* TODO: restore. Irit removed temporarily */
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/* if more than one SPML could be considered, then we still need the
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* modex since we cannot know which one will be selected on all procs
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*/
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/* if (1 < num_spml) {
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modex_reqd = true;
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}
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*/
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/* Finalize all non-selected components */
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/*TODO: IRIT suggestion why not replace with mca_base_components_close with best_component and wrapper (in case of FT) at skip? */
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for (item = opal_list_remove_first(&opened);
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NULL != item;
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item = opal_list_remove_first(&opened)) {
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om = (opened_component_t *) item;
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if (om->om_component != best_component
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/* TODO: Consider restoring FT */
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/* Irit
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#if OPAL_ENABLE_FT == 1
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&& om->om_component != wrapper_component
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#endif
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Irit */
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) {
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/* Finalize */
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if (NULL != om->om_component->spmlm_finalize) {
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/* Blatently ignore the return code (what would we do to
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recover, anyway? This component is going away, so errors
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don't matter anymore) */
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om->om_component->spmlm_finalize();
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SPML_VERBOSE(10, "select: component %s not selected / finalized",
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om->om_component->spmlm_version.mca_component_name);
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}
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}
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OBJ_DESTRUCT( om );
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free(om);
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}
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OBJ_DESTRUCT( &opened );
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/*TODO: Irit end of suggestion */
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/* TODO: Consider restoring FT*/
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#if 0
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#if OPAL_ENABLE_FT == 1
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/* Remove the wrapper component from the mca_spml_base_components_available list
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* so we don't unload it prematurely in the next call
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*/
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if( NULL != wrapper_component ) {
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for (item = opal_list_get_first(&mca_spml_base_components_available);
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item != opal_list_get_end(&mca_spml_base_components_available);
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item = opal_list_get_next(item) ) {
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cli = (mca_base_component_list_item_t *) item;
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component = (mca_spml_base_component_t *) cli->cli_component;
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if( component == wrapper_component ) {
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opal_list_remove_item(&mca_spml_base_components_available, item);
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}
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}
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}
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#endif
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#endif
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/* Save the winner */
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mca_spml_base_selected_component = *best_component;
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mca_spml = *best_module;
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SPML_VERBOSE( 10, "select: component %s selected",
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mca_spml_base_selected_component.spmlm_version.mca_component_name );
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/* This base function closes, unloads, and removes from the
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available list all unselected components. The available list will
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contain only the selected component. */
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mca_base_components_close(mca_spml_base_output,
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&mca_spml_base_components_available,
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(mca_base_component_t *) best_component);
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/* TODO: Consider restoring FT */
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#if 0
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#if OPAL_ENABLE_FT == 1
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/* If we have a wrapper then initalize it */
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if( NULL != wrapper_component ) {
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priority = SPML_SELECT_WRAPPER_PRIORITY;
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SPML_VERBOSE( 10,"spml:select: Wrapping: Component %s [%d] is being wrapped by component %s [%d]",
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mca_spml_base_selected_component.spmlm_version.mca_component_name,
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best_priority,
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wrapper_component->spmlm_version.mca_component_name,
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wrapper_priority );
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/* Ask the wrapper commponent to wrap around the currently
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* selected component. Indicated by the priority value provided
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* this will cause the wrapper to do something different this time around
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*/
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module = wrapper_component->spmlm_init(&priority,
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enable_progress_threads,
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enable_mpi_threads);
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/* Replace with the wrapper */
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best_component = wrapper_component;
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mca_spml_base_selected_component = *best_component;
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best_module = module;
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mca_spml = *best_module;
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}
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#endif
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#endif
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/* register the winner's callback */
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/*if( NULL != mca_spml.spml_progress ) {
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opal_progress_register(mca_spml.spml_progress);
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}*/
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/* TODO: Restore. Irit Disabled temporarily. */
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/* register winner in the modex */
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/* if (modex_reqd && 0 == ORTE_PROC_MY_NAME->vpid) {
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mca_spml_base_spml_selected(best_component->spmlm_version.mca_component_name);
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}
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*/
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/* All done */
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return OSHMEM_SUCCESS;
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}
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