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openmpi/orte/mca/ess/base/ess_base_select.c
Ralph Castain d70e2e8c2b Merge the ORTE devel branch into the main trunk. Details of what this means will be circulated separately.
Remains to be tested to ensure everything came over cleanly, so please continue to withhold commits a little longer

This commit was SVN r17632.
2008-02-28 01:57:57 +00:00

109 строки
4.0 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 "orte/constants.h"
#include "opal/class/opal_list.h"
#include "opal/util/output.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_component_repository.h"
#include "orte/mca/ess/base/base.h"
extern opal_list_t orte_ess_base_components_available;
int
orte_ess_base_select(void)
{
opal_list_item_t *item;
mca_base_component_list_item_t *cli;
int selected_priority = -1;
orte_ess_base_component_t *selected_component = NULL;
orte_ess_base_module_t *selected_module = NULL;
/* Traverse the list of opened modules; call their init functions. */
for(item = opal_list_get_first(&orte_ess_base_components_available);
item != opal_list_get_end(&orte_ess_base_components_available);
item = opal_list_get_next(item)) {
orte_ess_base_component_t* component;
cli = (mca_base_component_list_item_t *) item;
component = (orte_ess_base_component_t *) cli->cli_component;
opal_output_verbose(5, orte_ess_base_output,
"orte_ess_base_select: initializing %s component %s",
component->ess_version.mca_type_name,
component->ess_version.mca_component_name);
if (NULL == component->ess_init) {
opal_output_verbose(5, orte_ess_base_output,
"orte_ess_base_select: no init function; ignoring component");
} else {
int priority;
orte_ess_base_module_t* module = component->ess_init(&priority);
/* If the component didn't initialize, remove it from the opened
list and remove it from the component repository */
if (NULL == module) {
opal_output_verbose(5, orte_ess_base_output,
"orte_ess_base_select: init returned failure");
continue;
}
if(priority > selected_priority) {
selected_priority = priority;
selected_component = component;
selected_module = module;
}
}
}
if (NULL == selected_component) {
return ORTE_ERR_NOT_FOUND;
}
/* unload all components that were not selected */
item = opal_list_get_first(&orte_ess_base_components_available);
while(item != opal_list_get_end(&orte_ess_base_components_available)) {
opal_list_item_t* next = opal_list_get_next(item);
orte_ess_base_component_t* component;
cli = (mca_base_component_list_item_t *) item;
component = (orte_ess_base_component_t *) cli->cli_component;
if(component != selected_component) {
opal_output_verbose(5, orte_ess_base_output,
"orte_ess_base_select: module %s unloaded",
component->ess_version.mca_component_name);
mca_base_component_repository_release((mca_base_component_t *) component);
opal_list_remove_item(&orte_ess_base_components_available, item);
OBJ_RELEASE(item);
}
item = next;
}
/* setup reference to selected module */
if(NULL != selected_module) {
opal_output_verbose(5, orte_ess_base_output,
"orte_ess_base_select: module %s selected",
selected_component->ess_version.mca_component_name);
orte_ess = *selected_module;
}
return ORTE_SUCCESS;
}