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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) 2004-2007 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 (c) 2007 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2012-2014 Los Alamos National Security, LLC.
* All rights reserved.
* Copyright (c) 2014-2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2014 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/mca/base/base.h"
#include "opal/mca/base/mca_base_component_repository.h"
#include "opal/mca/btl/base/base.h"
#include "opal/mca/btl/base/btl_base_error.h"
#include "opal/mca/btl/btl.h"
#include "opal/mca/mca.h"
#include "opal/runtime/opal.h"
#include "opal/util/argv.h"
#include "opal/util/output.h"
#include "opal/util/show_help.h"
OBJ_CLASS_INSTANCE(mca_btl_base_selected_module_t, opal_list_item_t, NULL, NULL);
/**
* Function for weeding out btl components that don't want to run.
*
* Call the init function on all available components to find out if
* they want to run. Select all components that don't fail. Failing
* components will be closed and unloaded. The selected modules will
* be returned to the caller in a opal_list_t.
*/
int mca_btl_base_select(bool enable_progress_threads, bool enable_mpi_threads)
{
int i, num_btls;
mca_base_component_list_item_t *cli, *next;
mca_btl_base_component_t *component;
mca_btl_base_module_t **modules;
mca_btl_base_selected_module_t *sm;
char **include = opal_argv_split(mca_btl_base_include, ',');
char **exclude = opal_argv_split(mca_btl_base_exclude, ',');
/* Traverse the list of opened modules; call their init
functions. */
OPAL_LIST_FOREACH_SAFE (cli, next, &opal_btl_base_framework.framework_components,
mca_base_component_list_item_t) {
component = (mca_btl_base_component_t *) cli->cli_component;
/* if there is an include list - item must be in the list to be included */
if (NULL != include) {
char **argv = include;
bool found = false;
while (argv && *argv) {
if (strcmp(component->btl_version.mca_component_name, *argv) == 0) {
found = true;
break;
}
argv++;
}
if (found == false) {
continue;
}
/* otherwise - check the exclude list to see if this item has been specifically excluded
*/
} else if (NULL != exclude) {
char **argv = exclude;
bool found = false;
while (argv && *argv) {
if (strcmp(component->btl_version.mca_component_name, *argv) == 0) {
found = true;
break;
}
argv++;
}
if (found == true) {
continue;
}
}
opal_output_verbose(10, opal_btl_base_framework.framework_output,
"select: initializing %s component %s",
component->btl_version.mca_type_name,
component->btl_version.mca_component_name);
if (NULL == component->btl_init) {
opal_output_verbose(10, opal_btl_base_framework.framework_output,
"select: no init function; ignoring component %s",
component->btl_version.mca_component_name);
} else {
modules = component->btl_init(&num_btls, enable_progress_threads, enable_mpi_threads);
/* If the component didn't initialize, remove it from the opened
list and remove it from the component repository */
if (NULL == modules) {
opal_output_verbose(10, opal_btl_base_framework.framework_output,
"select: init of component %s returned failure",
component->btl_version.mca_component_name);
opal_list_remove_item(&opal_btl_base_framework.framework_components, &cli->super);
OBJ_RELEASE(cli);
mca_base_component_close((mca_base_component_t *) component,
opal_btl_base_framework.framework_output);
}
/* Otherwise, if it initialized properly, save it. */
else {
opal_output_verbose(10, opal_btl_base_framework.framework_output,
"select: init of component %s returned success",
component->btl_version.mca_component_name);
for (i = 0; i < num_btls; ++i) {
/* If modules[i] is NULL, it's a developer error */
if (NULL == modules[i]) {
BTL_ERROR(
("BTL module init of %s returned a NULL -- this should never happen, "
"and is a developer error. Contact the Open MPI developers.",
component->btl_version.mca_component_name));
exit(1);
}
sm = OBJ_NEW(mca_btl_base_selected_module_t);
if (NULL == sm) {
if (NULL != include) {
opal_argv_free(include);
}
if (NULL != exclude) {
opal_argv_free(exclude);
}
return OPAL_ERR_OUT_OF_RESOURCE;
}
sm->btl_component = component;
sm->btl_module = modules[i];
opal_list_append(&mca_btl_base_modules_initialized, (opal_list_item_t *) sm);
}
free(modules);
}
}
}
if (NULL != include) {
opal_argv_free(include);
}
if (NULL != exclude) {
opal_argv_free(exclude);
}
/* Finished querying all components. Check for the bozo case. */
if (0 == opal_list_get_size(&mca_btl_base_modules_initialized)) {
opal_show_help("help-mca-base.txt", "find-available:none found", true, "btl",
opal_process_info.nodename, "btl");
return OPAL_ERROR;
}
return OPAL_SUCCESS;
}
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