141 строка
3.3 KiB
C
141 строка
3.3 KiB
C
/*
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* Copyright (c) 2011 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2011-2012 Los Alamos National Security, LLC. All
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* rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*
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* These symbols are in a file by themselves to provide nice linker
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* semantics. Since linkers generally pull in symbols by object
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* files, keeping these symbols as the only symbols in this file
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* prevents utility programs such as "ompi_info" from having to import
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* entire components just to query their version and parameters.
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*/
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#include "orte_config.h"
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#include "orte/constants.h"
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#include <pmi.h>
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#if WANT_CRAY_PMI2_EXT
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#include <pmi2.h>
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#endif
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#include "orte/util/proc_info.h"
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#include "orte/mca/ess/ess.h"
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#include "orte/mca/ess/pmi/ess_pmi.h"
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extern orte_ess_base_module_t orte_ess_pmi_module;
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static int pmi_component_open(void);
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static int pmi_component_close(void);
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static int pmi_component_query(mca_base_module_t **module, int *priority);
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static bool started_by_me=false;
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/*
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* Instantiate the public struct with all of our public information
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* and pointers to our public functions in it
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*/
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orte_ess_base_component_t mca_ess_pmi_component = {
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{
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ORTE_ESS_BASE_VERSION_2_0_0,
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/* Component name and version */
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"pmi",
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ORTE_MAJOR_VERSION,
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ORTE_MINOR_VERSION,
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ORTE_RELEASE_VERSION,
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/* Component open and close functions */
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pmi_component_open,
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pmi_component_close,
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pmi_component_query
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},
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{
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/* The component is checkpoint ready */
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MCA_BASE_METADATA_PARAM_CHECKPOINT
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}
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};
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static int pmi_component_open(void)
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{
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return ORTE_SUCCESS;
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}
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static bool pmi_startup(void)
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{
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#if WANT_CRAY_PMI2_EXT
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int spawned, size, rank, appnum;
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if (PMI2_Initialized()) {
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/* already initialized */
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return true;
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}
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/* if we can't startup PMI, we can't be used */
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if (PMI_SUCCESS != PMI2_Init(&spawned, &size, &rank, &appnum)) {
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return false;
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}
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/* flag that we started PMI */
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started_by_me = true;
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/* ignore the info - we'll pick it up elsewhere */
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return true;
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#else
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PMI_BOOL initialized;
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if (PMI_SUCCESS != PMI_Initialized(&initialized)) {
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return false;
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}
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if (PMI_TRUE != initialized) {
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if (PMI_SUCCESS != PMI_Init(&initialized)) {
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return false;
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}
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/* flag that we started PMI */
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started_by_me = true;
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}
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return true;
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#endif
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}
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static int pmi_component_query(mca_base_module_t **module, int *priority)
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{
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/* we are available anywhere PMI is available, but not for HNP itself */
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if (!ORTE_PROC_IS_HNP && pmi_startup()) {
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/* if PMI is available, use it */
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*priority = 40;
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*module = (mca_base_module_t *)&orte_ess_pmi_module;
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return ORTE_SUCCESS;
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}
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/* we can't run */
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*priority = -1;
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*module = NULL;
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return ORTE_ERROR;
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}
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static int pmi_component_close(void)
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{
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#if WANT_CRAY_PMI2_EXT
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if (started_by_me && PMI2_Initialized()) {
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PMI2_Finalize();
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}
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#else
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PMI_BOOL initialized;
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/* if we weren't selected, cleanup */
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if (started_by_me &&
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PMI_SUCCESS == PMI_Initialized(&initialized) &&
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PMI_TRUE == initialized) {
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PMI_Finalize();
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}
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#endif
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return ORTE_SUCCESS;
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}
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