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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) 2015-2017 Intel, Inc. All rights reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <string.h>
#include "opal/mca/pmix/pmix.h"
#include "ompi/mca/rte/rte.h"
#include "ompi/interlib/interlib.h"
#include "mpi.h"
typedef struct {
int status;
volatile bool active;
} myreg_t;
/*
* errhandler id
*/
static size_t interlibhandler_id = SIZE_MAX;
static void model_registration_callback(int status,
size_t errhandler_ref,
void *cbdata)
{
myreg_t *trk = (myreg_t*)cbdata;
trk->status = status;
interlibhandler_id = errhandler_ref;
opal_atomic_wmb();
trk->active = false;
}
static void model_callback(int status,
const opal_process_name_t *source,
opal_list_t *info, opal_list_t *results,
opal_pmix_notification_complete_fn_t cbfunc,
void *cbdata)
{
opal_value_t *val;
if (NULL != getenv("OMPI_SHOW_MODEL_CALLBACK")) {
/* we can ignore our own callback as we obviously
* know that we are MPI */
if (NULL != info) {
OPAL_LIST_FOREACH(val, info, opal_value_t) {
if (0 == strcmp(val->key, OPAL_PMIX_PROGRAMMING_MODEL) &&
0 == strcmp(val->data.string, "MPI")) {
goto cback;
}
if (OPAL_STRING == val->type) {
opal_output(0, "OMPI Model Callback Key: %s Val %s", val->key, val->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(OMPI_SUCCESS, NULL, NULL, NULL, cbdata);
}
}
int ompi_interlib_declare(int threadlevel, char *version)
{
opal_list_t info, directives;
opal_value_t *kv;
myreg_t trk;
int ret;
/* Register an event handler for library model declarations */
trk.status = OPAL_ERROR;
trk.active = true;
/* give it a name so we can distinguish it */
OBJ_CONSTRUCT(&directives, opal_list_t);
kv = OBJ_NEW(opal_value_t);
kv->key = strdup(OPAL_PMIX_EVENT_HDLR_NAME);
kv->type = OPAL_STRING;
kv->data.string = strdup("MPI-Model-Declarations");
opal_list_append(&directives, &kv->super);
/* specify the event code */
OBJ_CONSTRUCT(&info, opal_list_t);
kv = OBJ_NEW(opal_value_t);
kv->key = strdup("status"); // the key here is irrelevant
kv->type = OPAL_INT;
kv->data.integer = OPAL_ERR_MODEL_DECLARED;
opal_list_append(&info, &kv->super);
/* 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.register_evhandler(&info, &directives, model_callback,
model_registration_callback,
(void*)&trk);
OMPI_LAZY_WAIT_FOR_COMPLETION(trk.active);
OPAL_LIST_DESTRUCT(&directives);
OPAL_LIST_DESTRUCT(&info);
if (OPAL_SUCCESS != trk.status) {
return trk.status;
}
/* declare that we are present and active */
OBJ_CONSTRUCT(&info, opal_list_t);
kv = OBJ_NEW(opal_value_t);
kv->key = strdup(OPAL_PMIX_PROGRAMMING_MODEL);
kv->type = OPAL_STRING;
kv->data.string = strdup("MPI");
opal_list_append(&info, &kv->super);
kv = OBJ_NEW(opal_value_t);
kv->key = strdup(OPAL_PMIX_MODEL_LIBRARY_NAME);
kv->type = OPAL_STRING;
kv->data.string = strdup("OpenMPI");
opal_list_append(&info, &kv->super);
kv = OBJ_NEW(opal_value_t);
kv->key = strdup(OPAL_PMIX_MODEL_LIBRARY_VERSION);
kv->type = OPAL_STRING;
kv->data.string = strdup(version);
opal_list_append(&info, &kv->super);
kv = OBJ_NEW(opal_value_t);
kv->key = strdup(OPAL_PMIX_THREADING_MODEL);
kv->type = OPAL_STRING;
if (MPI_THREAD_SINGLE == threadlevel) {
kv->data.string = strdup("NONE");
} else {
kv->data.string = strdup("PTHREAD");
}
opal_list_append(&info, &kv->super);
/* call pmix to initialize these values */
ret = opal_pmix.init(&info);
OPAL_LIST_DESTRUCT(&info);
/* account for our refcount on pmix_init */
opal_pmix.finalize();
return ret;
}
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