102 строки
2.8 KiB
C
102 строки
2.8 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 The University of Tennessee and The University
|
|
* of Tennessee Research Foundation. All rights
|
|
* reserved.
|
|
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
|
|
* University of Stuttgart. All rights reserved.
|
|
* Copyright (c) 2004-2005 The Regents of the University of California.
|
|
* All rights reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "orte_config.h"
|
|
|
|
#include "opal/util/trace.h"
|
|
|
|
#include "orte/include/orte_constants.h"
|
|
|
|
#include "orte/mca/gpr/base/base.h"
|
|
|
|
|
|
/**
|
|
* Function for selecting one component from all those that are
|
|
* available.
|
|
*/
|
|
int orte_gpr_base_select(void)
|
|
{
|
|
opal_list_item_t *item;
|
|
mca_base_component_list_item_t *cli;
|
|
mca_gpr_base_component_t *component, *best_component = NULL;
|
|
orte_gpr_base_module_t *module, *best_module = NULL;
|
|
bool multi, hidden;
|
|
int priority, best_priority = -1;
|
|
|
|
OPAL_TRACE(5);
|
|
|
|
/* Iterate through all the available components */
|
|
|
|
for (item = opal_list_get_first(&orte_gpr_base_components_available);
|
|
item != opal_list_get_end(&orte_gpr_base_components_available);
|
|
item = opal_list_get_next(item)) {
|
|
cli = (mca_base_component_list_item_t *) item;
|
|
component = (mca_gpr_base_component_t *) cli->cli_component;
|
|
|
|
/* Call the component's init function and see if it wants to be
|
|
selected */
|
|
module = component->gpr_init(&multi, &hidden, &priority);
|
|
|
|
/* If we got a non-NULL module back, then the component wants to
|
|
be selected. So save its multi/hidden values and save the
|
|
module with the highest priority */
|
|
|
|
if (NULL != module) {
|
|
/* If this is the best one, save it */
|
|
if (priority > best_priority) {
|
|
|
|
/* If there was a previous best one, finalize */
|
|
|
|
if (NULL != best_component) {
|
|
best_component->gpr_finalize();
|
|
}
|
|
|
|
/* Save the new best one */
|
|
best_module = module;
|
|
best_component = component;
|
|
|
|
/* update the best priority */
|
|
best_priority = priority;
|
|
}
|
|
|
|
/* If it's not the best one, finalize it */
|
|
|
|
else {
|
|
component->gpr_finalize();
|
|
}
|
|
}
|
|
}
|
|
|
|
/* If we didn't find one to select, barf */
|
|
|
|
if (NULL == best_component) {
|
|
return ORTE_ERROR;
|
|
}
|
|
|
|
/* We have happiness -- save the component and module for later
|
|
usage */
|
|
|
|
orte_gpr = *best_module;
|
|
orte_gpr_base_selected_component = *best_component;
|
|
orte_gpr_base_selected = true;
|
|
|
|
/* all done */
|
|
|
|
return ORTE_SUCCESS;
|
|
}
|