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openmpi/ompi/mca/crcp/base/crcp_base_select.c
Nathan Hjelm 8b5810f7f7 mca/base: add priority output to mca_base_select
The mca_base_select function uses returned priorities to select the
best component/module. This priority may be of use to the caller so
pass that information back in an optional argument. If the priority is
not needed pass NULL.

Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
2015-10-19 12:32:41 -06:00

181 строка
5.4 KiB
C

/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2010 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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) 2015 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/mca/crcp/crcp.h"
#include "ompi/mca/crcp/base/base.h"
static ompi_crcp_base_component_t none_component = {
/* Handle the general mca_component_t struct containing
* meta information about the component itself
*/
{
OMPI_CRCP_BASE_VERSION_2_0_0,
/* Component name and version */
"none",
OMPI_MAJOR_VERSION,
OMPI_MINOR_VERSION,
OMPI_RELEASE_VERSION,
/* Component open and close functions */
ompi_crcp_base_none_open,
ompi_crcp_base_none_close,
ompi_crcp_base_none_query
},
{
/* Component is checkpointable */
MCA_BASE_METADATA_PARAM_CHECKPOINT
},
/* Verbosity level */
0,
/* opal_output handler */
-1,
/* Default priority */
1
};
static ompi_crcp_base_module_t none_module = {
/** Initialization Function */
ompi_crcp_base_module_init,
/** Finalization Function */
ompi_crcp_base_module_finalize,
/** Quiesce interface */
ompi_crcp_base_none_quiesce_start,
ompi_crcp_base_none_quiesce_end,
/** PML Wrapper */
ompi_crcp_base_none_pml_enable,
ompi_crcp_base_none_pml_add_comm,
ompi_crcp_base_none_pml_del_comm,
ompi_crcp_base_none_pml_add_procs,
ompi_crcp_base_none_pml_del_procs,
ompi_crcp_base_none_pml_progress,
ompi_crcp_base_none_pml_iprobe,
ompi_crcp_base_none_pml_probe,
ompi_crcp_base_none_pml_isend_init,
ompi_crcp_base_none_pml_isend,
ompi_crcp_base_none_pml_send,
ompi_crcp_base_none_pml_irecv_init,
ompi_crcp_base_none_pml_irecv,
ompi_crcp_base_none_pml_recv,
ompi_crcp_base_none_pml_dump,
ompi_crcp_base_none_pml_start,
ompi_crcp_base_none_pml_ft_event,
/** Request Wrapper */
ompi_crcp_base_none_request_complete,
/** BTL Wrapper */
ompi_crcp_base_none_btl_add_procs,
ompi_crcp_base_none_btl_del_procs,
ompi_crcp_base_none_btl_register,
ompi_crcp_base_none_btl_finalize,
ompi_crcp_base_none_btl_alloc,
ompi_crcp_base_none_btl_free,
ompi_crcp_base_none_btl_prepare_src,
ompi_crcp_base_none_btl_prepare_dst,
ompi_crcp_base_none_btl_send,
ompi_crcp_base_none_btl_put,
ompi_crcp_base_none_btl_get,
ompi_crcp_base_none_btl_dump,
ompi_crcp_base_none_btl_ft_event
};
int ompi_crcp_base_select(void)
{
int ret;
ompi_crcp_base_component_t *best_component = NULL;
ompi_crcp_base_module_t *best_module = NULL;
const char *include_list = NULL;
const char **selection_value;
int var_id;
/*
* Register the framework MCA param and look up include list
*/
var_id = mca_base_var_find("ompi", "crcp", NULL, NULL);
/* NTH: The old parameter code here set the selection to none if no file value
or environment value was set. This effectively means include_list is never NULL. */
selection_value = NULL;
(void) mca_base_var_get_value(var_id, &selection_value, NULL, NULL);
if (NULL == selection_value || NULL == selection_value[0]) {
(void) mca_base_var_set_value(var_id, "none", 5, MCA_BASE_VAR_SOURCE_DEFAULT, NULL);
include_list = "none";
} else {
include_list = selection_value[0];
}
if(0 == strncmp(include_list, "none", strlen("none")) ){
opal_output_verbose(10, ompi_crcp_base_framework.framework_output,
"crcp:select: Using %s component",
include_list);
best_component = &none_component;
best_module = &none_module;
/* JJH: Todo: Check if none is in the list */
/* Close all components since none will be used */
mca_base_components_close(ompi_crcp_base_framework.framework_output,
&ompi_crcp_base_framework.framework_components,
NULL);
} else
/*
* Select the best component
*/
if( OPAL_SUCCESS != mca_base_select("crcp", ompi_crcp_base_framework.framework_output,
&ompi_crcp_base_framework.framework_components,
(mca_base_module_t **) &best_module,
(mca_base_component_t **) &best_component, NULL) ) {
/* This will only happen if no component was selected */
return OMPI_ERROR;
}
/* Save the winner */
ompi_crcp_base_selected_component = *best_component;
ompi_crcp = *best_module;
/* Initialize the winner */
if (OPAL_SUCCESS != (ret = ompi_crcp.crcp_init()) ) {
return ret;
}
return OMPI_SUCCESS;
}