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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* 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) 2004-2006 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2015-2018 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mca/mca.h"
#include "opal/util/output.h"
#include "opal/mca/base/base.h"
#include "ompi/constants.h"
#include "ompi/mca/mtl/mtl.h"
#include "ompi/mca/mtl/base/base.h"
/*
* The following file was created by configure. It contains extern
* statements and the definition of an array of pointers to each
* component's public mca_base_component_t struct.
*/
#include "ompi/mca/mtl/base/static-components.h"
mca_mtl_base_component_t *ompi_mtl_base_selected_component = NULL;
mca_mtl_base_module_t *ompi_mtl = NULL;
/*
* Function for selecting one component from all those that are
* available.
*
* For now, we take the first component that says it can run. Might
* need to reexamine this at a later time.
*/
int
ompi_mtl_base_select (bool enable_progress_threads,
bool enable_mpi_threads,
int *priority)
{
int ret = OMPI_ERR_NOT_FOUND;
mca_mtl_base_component_t *best_component = NULL;
mca_mtl_base_module_t *best_module = NULL;
int best_priority;
/*
* Select the best component
*/
if( OPAL_SUCCESS != mca_base_select("mtl", ompi_mtl_base_framework.framework_output,
&ompi_mtl_base_framework.framework_components,
(mca_base_module_t **) &best_module,
(mca_base_component_t **) &best_component,
&best_priority) ) {
/* notify caller that no available component found */
return ret;
}
opal_output_verbose( 10, ompi_mtl_base_framework.framework_output,
"select: initializing %s component %s",
best_component->mtl_version.mca_type_name,
best_component->mtl_version.mca_component_name );
if (NULL == best_component->mtl_init(enable_progress_threads,
enable_mpi_threads, &best_component->accelerator_support)) {
opal_output_verbose( 10, ompi_mtl_base_framework.framework_output,
"select: init returned failure for component %s",
best_component->mtl_version.mca_component_name );
} else {
opal_output_verbose( 10, ompi_mtl_base_framework.framework_output,
"select: init returned success");
ompi_mtl_base_selected_component = best_component;
ompi_mtl = best_module;
*priority = best_priority;
ret = OMPI_SUCCESS;
}
/* All done */
if (NULL == ompi_mtl) {
opal_output_verbose( 10, ompi_mtl_base_framework.framework_output,
"select: no component selected");
} else {
opal_output_verbose( 10, ompi_mtl_base_framework.framework_output,
"select: component %s selected",
ompi_mtl_base_selected_component->
mtl_version.mca_component_name );
}
return ret;
}
static int
ompi_mtl_base_close(void)
{
/* NTH: Should we be freeing the mtl module here? */
ompi_mtl = NULL;
ompi_mtl_base_selected_component = NULL;
/* Close all remaining available modules (may be one if this is a
OMPI RTE program, or [possibly] multiple if this is ompi_info) */
return mca_base_framework_components_close(&ompi_mtl_base_framework, NULL);
}
MCA_BASE_FRAMEWORK_DECLARE(ompi, mtl, NULL, NULL, NULL, ompi_mtl_base_close,
mca_mtl_base_static_components, 0);
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