/* * Copyright (c) 2013 Mellanox Technologies, Inc. * All rights reserved. * Copyright (c) 2014 Research Organization for Information Science * and Technology (RIST). All rights reserved. * $COPYRIGHT$ * * Additional copyrights may follow * * $HEADER$ */ #include "oshmem_config.h" #ifdef HAVE_STRING_H #include #endif #include "opal/util/show_help.h" #include "opal/mca/base/base.h" #include "opal/runtime/opal.h" #include "orte/mca/errmgr/errmgr.h" #include "oshmem/util/oshmem_util.h" #include "oshmem/constants.h" #include "oshmem/mca/spml/spml.h" #include "oshmem/mca/spml/base/base.h" #include "ompi/mca/bml/base/base.h" typedef struct opened_component_t { opal_list_item_t super; mca_spml_base_component_t *om_component; } opened_component_t; /** * Function for selecting one component from all those that are * available. * * Call the init function on all available components and get their * priorities. Select the component with the highest priority. All * other components will be closed and unloaded. The selected component * will have all of its function pointers saved and returned to the * caller. */ int mca_spml_base_select(bool enable_progress_threads, bool enable_mpi_threads) { int i, priority = 0, best_priority = 0, num_spml = 0; opal_list_item_t *item = NULL; mca_base_component_list_item_t *cli = NULL; mca_spml_base_component_t *component = NULL, *best_component = NULL; mca_spml_base_module_t *module = NULL, *best_module = NULL; opal_list_t opened; opened_component_t *om = NULL; bool found_spml; /* Traverse the list of available components; call their init functions. */ best_priority = -1; best_component = NULL; module = NULL; OBJ_CONSTRUCT(&opened, opal_list_t); OPAL_LIST_FOREACH(cli, &oshmem_spml_base_framework.framework_components, mca_base_component_list_item_t) { component = (mca_spml_base_component_t *) cli->cli_component; /* if there is an include list - item must be in the list to be included */ found_spml = false; for( i = 0; i < opal_pointer_array_get_size(&mca_spml_base_spml); i++) { char * tmp_val = NULL; tmp_val = (char *) opal_pointer_array_get_item(&mca_spml_base_spml, i); if( NULL == tmp_val) { continue; } if(0 == strncmp(component->spmlm_version.mca_component_name, tmp_val, strlen(component->spmlm_version.mca_component_name)) ) { found_spml = true; break; } } if (!found_spml && opal_pointer_array_get_size(&mca_spml_base_spml)) { SPML_VERBOSE( 10, "select: component %s not in the include list", component->spmlm_version.mca_component_name); continue; } /* if there is no init function - ignore it */ if (NULL == component->spmlm_init) { SPML_VERBOSE( 10, "select: no init function; ignoring component %s", component->spmlm_version.mca_component_name); continue; } /* this is a spml that could be considered */ num_spml++; /* Init component to get its priority */ SPML_VERBOSE( 10, "select: initializing %s component %s", component->spmlm_version.mca_type_name, component->spmlm_version.mca_component_name); priority = best_priority; module = component->spmlm_init(&priority, enable_progress_threads, enable_mpi_threads); if (NULL == module) { SPML_VERBOSE( 10, "select: init returned failure for component %s", component->spmlm_version.mca_component_name); continue; } SPML_VERBOSE( 10, "select: init returned priority %d", priority); if (priority > best_priority) { best_priority = priority; best_component = component; best_module = module; } om = (opened_component_t*) malloc(sizeof(opened_component_t)); if (NULL == om) { return OSHMEM_ERR_OUT_OF_RESOURCE; } OBJ_CONSTRUCT(om, opal_list_item_t); om->om_component = component; opal_list_append(&opened, (opal_list_item_t*) om); } /* Finished querying all components. Check for the bozo case. */ if (NULL == best_component) { opal_show_help("help-oshmem-memheap.txt", "find-available:none-found", true, "spml"); for (i = 0; i < opal_pointer_array_get_size(&mca_spml_base_spml); i++) { char * tmp_val = NULL; tmp_val = (char *) opal_pointer_array_get_item(&mca_spml_base_spml, i); if (NULL == tmp_val) { continue; } if (0 == strncmp(tmp_val, "yoda", 4) && !mca_bml_base_inited()) { orte_errmgr.abort(1, "SPML %s cannot be selected becasue no btls are available. Please make sure that ob1 pml is selected by ompi (-mca pml ob1)", tmp_val); } else { orte_errmgr.abort(1, "SPML %s cannot be selected", tmp_val); } } if (0 == i) { orte_errmgr.abort(2, "No spml component available. This shouldn't happen."); } } SPML_VERBOSE( 10, "selected %s best priority %d\n", best_component->spmlm_version.mca_component_name, best_priority); /* Finalize all non-selected components */ for (item = opal_list_remove_first(&opened); NULL != item; item = opal_list_remove_first(&opened)) { om = (opened_component_t *) item; if (om->om_component != best_component) { /* Finalize */ if (NULL != om->om_component->spmlm_finalize) { /* Blatently ignore the return code (what would we do to recover, anyway? This component is going away, so errors don't matter anymore) */ om->om_component->spmlm_finalize(); SPML_VERBOSE(10, "select: component %s not selected / finalized", om->om_component->spmlm_version.mca_component_name); } } OBJ_DESTRUCT( om); free(om); } OBJ_DESTRUCT( &opened); /* Save the winner */ mca_spml_base_selected_component = *best_component; mca_spml = *best_module; SPML_VERBOSE( 10, "select: component %s selected", mca_spml_base_selected_component.spmlm_version.mca_component_name); /* This base function closes, unloads, and removes from the available list all unselected components. The available list will contain only the selected component. */ mca_base_components_close(oshmem_spml_base_framework.framework_output, &oshmem_spml_base_framework.framework_components, (mca_base_component_t *) best_component); /* All done */ return OSHMEM_SUCCESS; }