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openmpi/ompi/mca/bml/base/bml_base_init.c
George Bosilca 17e65369be Fix the deadlock when we run out of resources on the BTLs. Move the progress
function from the BML into the PML. The BTL progress functions are now directly
registered with the event library.

This commit was SVN r19561.
2008-09-15 22:56:23 +00:00

99 строки
3.5 KiB
C

/*
* Copyright (c) 2004-2007 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) 2004-2007 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2006 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mca/bml/base/base.h"
#include "opal/mca/base/base.h"
#include "opal/mca/mca.h"
int mca_bml_base_output = -1;
mca_bml_base_module_t mca_bml = {
NULL, /* bml_component */
0, /* bml_eager_limit */
0, /* bml_rndv_eager_limit */
0, /* bml_max_send_size */
0, /* bml_min_rdma_size */
0, /* bml_max_rdma_size */
NULL, /* bml_add_procs */
NULL, /* bml_del_procs */
NULL, /* bml_add_btl */
NULL, /* bml_del_btl */
NULL, /* bml_del_proc_btl */
NULL, /* bml_register */
NULL, /* bml_register_error */
NULL, /* bml_finalize*/
NULL /* FT event */
};
mca_bml_base_component_t mca_bml_component;
static bool init_called = false;
bool
mca_bml_base_inited(void)
{
return init_called;
}
int mca_bml_base_init( bool enable_progress_threads,
bool enable_mpi_threads) {
opal_list_item_t *item = NULL;
mca_bml_base_component_t *component = NULL, *best_component = NULL;
mca_bml_base_module_t *module = NULL, *best_module = NULL;
int priority = 0, best_priority = -1;
mca_base_component_list_item_t *cli = NULL;
init_called = true;
for (item = opal_list_get_first(&mca_bml_base_components_available);
opal_list_get_end(&mca_bml_base_components_available) != item;
item = opal_list_get_next(item)) {
cli = (mca_base_component_list_item_t*) item;
component = (mca_bml_base_component_t*) cli->cli_component;
if(NULL == component->bml_init) {
opal_output_verbose( 10, mca_bml_base_output,
"select: no init function; ignoring component %s",
component->bml_version.mca_component_name );
continue;
}
module = component->bml_init(&priority,
enable_progress_threads,
enable_mpi_threads);
if(NULL == module) {
continue;
}
if(priority > best_priority) {
best_priority = priority;
best_component = component;
best_module = module;
}
}
if(NULL == best_module) {
return OMPI_SUCCESS;
}
else {
mca_bml_component = *best_component;
mca_bml = *best_module;
return mca_base_components_close(mca_bml_base_output,
&mca_bml_base_components_available,
(mca_base_component_t*) best_component);
}
}