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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 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 "opal_config.h"
#include "opal/constants.h"
#include "opal/util/output.h"
#include "opal/mca/mca.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_param.h"
#include "opal/mca/maffinity/maffinity.h"
#include "opal/mca/maffinity/base/base.h"
/*
* Globals
*/
bool opal_maffinity_base_selected = false;
const opal_maffinity_base_component_1_0_0_t *opal_maffinity_base_component = NULL;
const opal_maffinity_base_module_1_0_0_t *opal_maffinity_base_module = NULL;
int opal_maffinity_base_select(void)
{
int priority = 0, best_priority = 0;
opal_list_item_t *item = NULL;
mca_base_component_list_item_t *cli = NULL;
opal_maffinity_base_component_1_0_0_t *component = NULL,
*best_component = NULL;
const opal_maffinity_base_module_1_0_0_t *module = NULL,
*best_module = NULL;
char *value;
/* Register the framework MCA param and look it up */
mca_base_param_reg_string_name("maffinity", NULL,
"Which maffinity component to use (empty = auto-select)",
false, false,
NULL, &value);
if (NULL == value || 0 == strlen(value)) {
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: auto-selecting");
} else {
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: looking for %s component",
value);
}
/* Traverse the list of available components; call their init
functions. */
best_priority = -1;
best_component = NULL;
module = NULL;
for (item = opal_list_get_first(&opal_maffinity_base_components_opened);
opal_list_get_end(&opal_maffinity_base_components_opened) != item;
item = opal_list_get_next(item) ) {
cli = (mca_base_component_list_item_t *) item;
component = (opal_maffinity_base_component_1_0_0_t *) cli->cli_component;
/* if there is an include list - item must be in the list to
be included */
if (NULL != value && strlen(value) > 0 &&
0 != strcmp(component->maffinityc_version.mca_component_name,
value)) {
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: skipping %s component",
component->maffinityc_version.mca_component_name);
continue;
}
if (NULL == component->maffinityc_query) {
opal_output_verbose(10, opal_maffinity_base_output,
"pafinity:select: no init function; ignoring component %s",
component->maffinityc_version.mca_component_name );
continue;
}
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: initializing component %s",
component->maffinityc_version.mca_component_name);
module = component->maffinityc_query(&priority);
if (NULL == module) {
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: init returned failure for component %s",
component->maffinityc_version.mca_component_name );
continue;
}
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: init returned priority %d",
priority );
if (priority > best_priority) {
best_priority = priority;
best_component = component;
best_module = module;
}
}
/* Finished querying all components. Check for the bozo case. */
if (NULL == best_component ) {
return OPAL_ERR_NOT_FOUND;
}
/* Now go through the opened list and close all the non-selected
components */
mca_base_components_close(opal_maffinity_base_output,
&opal_maffinity_base_components_opened,
(mca_base_component_t *) best_component);
/* Save the winner */
opal_maffinity_base_component = best_component;
opal_maffinity_base_module = best_module;
opal_output_verbose(10, opal_maffinity_base_output,
"maffinity:select: component %s selected",
best_component->maffinityc_version.mca_component_name);
opal_maffinity_base_selected = true;
/* Initialize the winner */
if (NULL != opal_maffinity_base_module) {
if (OPAL_SUCCESS != opal_maffinity_base_module->maff_module_init()) {
return OPAL_ERROR;
}
}
return OPAL_SUCCESS;
}
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