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/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2017 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) 2008-2012 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2015-2020 Intel, Inc. All rights reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* Copyright (c) 2021 Nanook Consulting. All rights reserved.
* Copyright (c) 2022 Triad National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include "opal/mca/pmix/pmix-internal.h"
#include "opal/util/proc.h"
#include "ompi/runtime/ompi_rte.h"
#include "ompi/interlib/interlib.h"
#include "mpi.h"
static void model_callback(size_t refid, pmix_status_t status,
const pmix_proc_t *source,
pmix_info_t *info, size_t ninfo,
pmix_info_t *results, size_t nresults,
pmix_event_notification_cbfunc_fn_t cbfunc,
void *cbdata)
{
size_t n;
if (NULL != getenv("OMPI_SHOW_MODEL_CALLBACK")) {
/* we can ignore our own callback as we obviously
* know that we are MPI */
if (NULL != info) {
for (n=0; n < ninfo; n++) {
if (PMIX_CHECK_KEY(&info[n], PMIX_PROGRAMMING_MODEL) &&
0 == strcmp(info[n].value.data.string, "MPI")) {
goto cback;
}
if (PMIX_STRING == info[n].value.type) {
opal_output(0, "OMPI Model Callback Key: %s Val %s", info[n].key, info[n].value.data.string);
}
}
}
}
/* otherwise, do something clever here */
cback:
/* we must NOT tell the event handler state machine that we
* are the last step as that will prevent it from notifying
* anyone else that might be listening for declarations */
if (NULL != cbfunc) {
cbfunc(PMIX_SUCCESS, NULL, 0, NULL, NULL, cbdata);
}
}
static void evhandler_reg_callbk(pmix_status_t status,
size_t evhandler_ref,
void *cbdata)
{
opal_pmix_lock_t *lock = (opal_pmix_lock_t*)cbdata;
lock->status = status;
OPAL_PMIX_WAKEUP_THREAD(lock);
}
int ompi_interlib_declare(int threadlevel, char *version)
{
pmix_info_t info[4], directives;
int ret;
pmix_status_t rc;
pmix_status_t code = PMIX_MODEL_DECLARED;
opal_pmix_lock_t mylock;
/* Register an event handler for library model declarations */
/* give it a name so we can distinguish it */
PMIX_INFO_LOAD(&directives, PMIX_EVENT_HDLR_NAME, "MPI-Model-Declarations", PMIX_STRING);
/* we could constrain the range to proc_local - technically, this
* isn't required so long as the code that generates
* the event stipulates its range as proc_local. We rely
* on that here */
OPAL_PMIX_CONSTRUCT_LOCK(&mylock);
PMIx_Register_event_handler(&code, 1, &directives, 1, model_callback, evhandler_reg_callbk, (void*)&mylock);
OPAL_PMIX_WAIT_THREAD(&mylock);
PMIX_INFO_DESTRUCT(&directives);
rc = mylock.status;
OPAL_PMIX_DESTRUCT_LOCK(&mylock);
if (PMIX_SUCCESS != rc) {
return OMPI_ERROR;
}
/* declare that we are present and active */
PMIX_INFO_LOAD(&info[0], PMIX_PROGRAMMING_MODEL, "MPI", PMIX_STRING);
PMIX_INFO_LOAD(&info[1], PMIX_MODEL_LIBRARY_NAME, "OpenMPI", PMIX_STRING);
PMIX_INFO_LOAD(&info[2], PMIX_MODEL_LIBRARY_VERSION, version, PMIX_STRING);
if (MPI_THREAD_SINGLE == threadlevel) {
PMIX_INFO_LOAD(&info[3], PMIX_THREADING_MODEL, "NONE", PMIX_STRING);
} else {
PMIX_INFO_LOAD(&info[3], PMIX_THREADING_MODEL, "PTHREAD", PMIX_STRING);
}
/* call pmix to initialize these values */
rc = PMIx_Init(NULL, info, 4);
PMIX_INFO_DESTRUCT(&info[0]);
PMIX_INFO_DESTRUCT(&info[1]);
PMIX_INFO_DESTRUCT(&info[2]);
PMIX_INFO_DESTRUCT(&info[3]);
/* account for our refcount on pmix_init */
PMIx_Finalize(NULL, 0);
if (opal_process_info.is_singleton && PMIX_ERR_UNREACH == rc) {
ret = OMPI_SUCCESS;
} else {
ret = opal_pmix_convert_status(rc);
}
return ret;
}
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