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openmpi/orte/mca/ess/cm/ess_cm_component.c

101 строка
2.4 KiB
C

/*
* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* These symbols are in a file by themselves to provide nice linker
* semantics. Since linkers generally pull in symbols by object
* files, keeping these symbols as the only symbols in this file
* prevents utility programs such as "ompi_info" from having to import
* entire components just to query their version and parameters.
*/
#include "orte_config.h"
#include "orte/constants.h"
#include "opal/mca/base/mca_base_param.h"
#include "orte/util/proc_info.h"
#include "orte/runtime/orte_globals.h"
#include "orte/mca/ess/ess.h"
#include "orte/mca/ess/cm/ess_cm.h"
extern orte_ess_base_module_t orte_ess_cm_module;
/*
* Instantiate the public struct with all of our public information
* and pointers to our public functions in it
*/
orte_ess_cm_component_t mca_ess_cm_component = {
{
{
ORTE_ESS_BASE_VERSION_2_0_0,
/* Component name and version */
"cm",
ORTE_MAJOR_VERSION,
ORTE_MINOR_VERSION,
ORTE_RELEASE_VERSION,
/* Component open and close functions */
orte_ess_cm_component_open,
orte_ess_cm_component_close,
orte_ess_cm_component_query
},
{
/* The component is checkpoint ready */
MCA_BASE_METADATA_PARAM_CHECKPOINT
}
}
};
int
orte_ess_cm_component_open(void)
{
mca_base_component_t *c = &mca_ess_cm_component.super.base_version;
mca_base_param_reg_int(c, "max_slots",
"Max #slots/rack (must be > 0)",
false, false, 38, &mca_ess_cm_component.max_slots);
return ORTE_SUCCESS;
}
int orte_ess_cm_component_query(mca_base_module_t **module, int *priority)
{
#if ORTE_ENABLE_MULTICAST
char *spec;
/* only select us if specified */
spec = getenv("OMPI_MCA_ess");
if (NULL == spec || 0 != strcmp("cm", spec)) {
*priority = 0;
*module = NULL;
return ORTE_ERROR;
}
*priority = 1000;
*module = (mca_base_module_t *)&orte_ess_cm_module;
return ORTE_SUCCESS;
#else
/* cannot be used */
*priority = 0;
*module = NULL;
return ORTE_ERROR;
#endif
}
int
orte_ess_cm_component_close(void)
{
return ORTE_SUCCESS;
}