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/*
* Copyright (c) 2004-2010 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2011 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) 2006-2013 Los Alamos National Security, LLC.
* All rights reserved.
* Copyright (c) 2009-2012 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2011 Oak Ridge National Labs. All rights reserved.
* Copyright (c) 2013-2020 Intel, Inc. All rights reserved.
* Copyright (c) 2015 Mellanox Technologies, Inc. All rights reserved.
* Copyright (c) 2019 Triad National Security, LLC. All rights
* reserved.
* Copyright (c) 2019 IBM Corporation. All rights reserved.
* Copyright (c) 2021-2022 Nanook Consulting. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#include <pthread.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <pmix.h>
#include "examples.h"
static pmix_proc_t myproc;
static mylock_t invitedlock;
static void notification_fn(size_t evhdlr_registration_id, 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)
{
EXAMPLES_HIDE_UNUSED_PARAMS(evhdlr_registration_id, source,
info, ninfo, results, nresults);
fprintf(stderr, "Client %s:%d NOTIFIED with status %s\n",
myproc.nspace, myproc.rank, PMIx_Error_string(status));
if (NULL != cbfunc) {
cbfunc(PMIX_EVENT_ACTION_COMPLETE, NULL, 0, NULL, NULL, cbdata);
}
}
static void op_callbk(pmix_status_t status, void *cbdata)
{
mylock_t *lock = (mylock_t *) cbdata;
lock->status = status;
DEBUG_WAKEUP_THREAD(lock);
}
static void errhandler_reg_callbk(pmix_status_t status, size_t errhandler_ref, void *cbdata)
{
EXAMPLES_HIDE_UNUSED_PARAMS(errhandler_ref);
mylock_t *lock = (mylock_t *) cbdata;
lock->status = status;
DEBUG_WAKEUP_THREAD(lock);
}
static void grpcomplete(size_t evhdlr_registration_id, 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)
{
EXAMPLES_HIDE_UNUSED_PARAMS(evhdlr_registration_id, status, source, info, ninfo, results, nresults, cbfunc, cbdata);
DEBUG_WAKEUP_THREAD(&invitedlock);
}
static void invitefn(size_t evhdlr_registration_id, 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;
char *grp = NULL;
pmix_status_t rc;
EXAMPLES_HIDE_UNUSED_PARAMS(evhdlr_registration_id, results, nresults);
/* if I am the leader, I can ignore this event */
if (PMIX_CHECK_PROCID(source, &myproc)) {
/* mark the event chain as complete */
if (NULL != cbfunc) {
cbfunc(PMIX_EVENT_ACTION_COMPLETE, NULL, 0, NULL, NULL, cbdata);
}
return;
}
/* search for grp id */
for (n = 0; n < ninfo; n++) {
if (PMIX_CHECK_KEY(&info[n], PMIX_GROUP_ID)) {
grp = info[n].value.data.string;
break;
}
}
invitedlock.status = status;
rc = PMIx_Group_join_nb(grp, source, PMIX_GROUP_ACCEPT, NULL, 0, NULL, NULL);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "%s:%d Error in Group_join_nb: %sn", myproc.nspace, myproc.rank,
PMIx_Error_string(rc));
}
/* mark the event chain as complete */
if (NULL != cbfunc) {
cbfunc(PMIX_EVENT_ACTION_COMPLETE, NULL, 0, NULL, NULL, cbdata);
}
}
int main(int argc, char **argv)
{
int rc;
pmix_value_t *val = NULL;
pmix_proc_t proc, *procs;
uint32_t nprocs;
mylock_t lock;
pmix_status_t code;
pmix_info_t *results;
size_t nresults;
char hostname[1024];
EXAMPLES_HIDE_UNUSED_PARAMS(argc, argv);
gethostname(hostname, sizeof(hostname));
/* init us */
if (PMIX_SUCCESS != (rc = PMIx_Init(&myproc, NULL, 0))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Init failed: %s\n", myproc.nspace, myproc.rank,
PMIx_Error_string(rc));
exit(0);
}
fprintf(stderr, "[%d] Client ns %s rank %d: Running on %s\n",
(int) getpid(), myproc.nspace, myproc.rank, hostname);
DEBUG_CONSTRUCT_LOCK(&invitedlock);
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
/* get our job size */
if (PMIX_SUCCESS != (rc = PMIx_Get(&proc, PMIX_JOB_SIZE, NULL, 0, &val))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Get job size failed: %s\n", myproc.nspace,
myproc.rank, PMIx_Error_string(rc));
goto done;
}
nprocs = val->data.uint32;
PMIX_VALUE_RELEASE(val);
if (nprocs < 4) {
if (0 == myproc.rank) {
fprintf(stderr, "This example requires a minimum of 4 processes\n");
}
goto done;
}
fprintf(stderr, "Client %s:%d job size %d\n", myproc.nspace, myproc.rank, nprocs);
/* register our default errhandler */
DEBUG_CONSTRUCT_LOCK(&lock);
PMIx_Register_event_handler(NULL, 0, NULL, 0, notification_fn, errhandler_reg_callbk,
(void *) &lock);
DEBUG_WAIT_THREAD(&lock);
rc = lock.status;
DEBUG_DESTRUCT_LOCK(&lock);
if (PMIX_SUCCESS != rc) {
goto done;
}
/* we need to register handlers for invitations */
DEBUG_CONSTRUCT_LOCK(&lock);
code = PMIX_GROUP_INVITED;
PMIx_Register_event_handler(&code, 1, NULL, 0, invitefn, errhandler_reg_callbk, (void *) &lock);
DEBUG_WAIT_THREAD(&lock);
rc = lock.status;
DEBUG_DESTRUCT_LOCK(&lock);
if (PMIX_SUCCESS != rc) {
goto done;
}
if (2 == myproc.rank || 3 == myproc.rank) {
/* need to register for group complete event */
DEBUG_CONSTRUCT_LOCK(&lock);
code = PMIX_GROUP_CONSTRUCT_COMPLETE;
PMIx_Register_event_handler(&code, 1, NULL, 0, grpcomplete, errhandler_reg_callbk, (void *) &lock);
DEBUG_WAIT_THREAD(&lock);
rc = lock.status;
DEBUG_DESTRUCT_LOCK(&lock);
if (PMIX_SUCCESS != rc) {
goto done;
}
}
/* call fence to sync */
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
if (PMIX_SUCCESS != (rc = PMIx_Fence(&proc, 1, NULL, 0))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Fence failed: %d\n", myproc.nspace, myproc.rank,
rc);
goto done;
}
/* rank=0 constructs a new group */
if (0 == myproc.rank) {
fprintf(stderr, "%d executing Group_invite\n", myproc.rank);
nprocs = 3;
PMIX_PROC_CREATE(procs, nprocs);
PMIX_PROC_LOAD(&procs[0], myproc.nspace, 0);
PMIX_PROC_LOAD(&procs[1], myproc.nspace, 2);
PMIX_PROC_LOAD(&procs[2], myproc.nspace, 3);
rc = PMIx_Group_invite("ourgroup", procs, nprocs, NULL, 0, &results, &nresults);
fprintf(stderr, "Client ns %s rank %d: Group invite complete with status %s!\n",
myproc.nspace, myproc.rank, PMIx_Error_string(rc));
if (PMIX_SUCCESS != rc) {
exit(1);
}
PMIX_PROC_FREE(procs, nprocs);
fprintf(stderr, "%s:%d Execute fence across group\n", myproc.nspace, myproc.rank);
PMIX_PROC_LOAD(&proc, "ourgroup", PMIX_RANK_WILDCARD);
rc = PMIx_Fence(&proc, 1, NULL, 0);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Fence across group failed: %d\n",
myproc.nspace, myproc.rank, rc);
exit(1);
}
fprintf(stderr, "%d Executing Group_destruct\n", myproc.rank);
rc = PMIx_Group_destruct("ourgroup", NULL, 0);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Group_destruct failed: %s\n",
myproc.nspace, myproc.rank, PMIx_Error_string(rc));
exit(1);
}
} else if (2 == myproc.rank || 3 == myproc.rank) {
/* wait to be invited */
fprintf(stderr, "%s:%d waiting to join group\n", myproc.nspace, myproc.rank);
DEBUG_WAIT_THREAD(&invitedlock);
DEBUG_DESTRUCT_LOCK(&invitedlock);
fprintf(stderr, "%s:%d Group complete - executing fence across group\n",
myproc.nspace, myproc.rank);
PMIX_PROC_LOAD(&proc, "ourgroup", PMIX_RANK_WILDCARD);
rc = PMIx_Fence(&proc, 1, NULL, 0);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Fence across group failed: %d\n",
myproc.nspace, myproc.rank, rc);
goto done;
}
fprintf(stderr, "%d Executing Group_destruct\n", myproc.rank);
rc = PMIx_Group_destruct("ourgroup", NULL, 0);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Group_destruct failed: %s\n", myproc.nspace,
myproc.rank, PMIx_Error_string(rc));
goto done;
}
}
/* call fence to sync */
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
if (PMIX_SUCCESS != (rc = PMIx_Fence(&proc, 1, NULL, 0))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Fence failed: %s\n", myproc.nspace, myproc.rank,
PMIx_Error_string(rc));
goto done;
}
done:
/* finalize us */
DEBUG_CONSTRUCT_LOCK(&lock);
PMIx_Deregister_event_handler(1, op_callbk, &lock);
DEBUG_WAIT_THREAD(&lock);
DEBUG_DESTRUCT_LOCK(&lock);
fprintf(stderr, "Client ns %s rank %d: Finalizing\n", myproc.nspace, myproc.rank);
if (PMIX_SUCCESS != (rc = PMIx_Finalize(NULL, 0))) {
fprintf(stderr, "Client ns %s rank %d:PMIx_Finalize failed: %s\n", myproc.nspace,
myproc.rank, PMIx_Error_string(rc));
} else {
fprintf(stderr, "Client ns %s rank %d:PMIx_Finalize successfully completed\n",
myproc.nspace, myproc.rank);
}
fprintf(stderr, "%s:%d COMPLETE\n", myproc.nspace, myproc.rank);
fflush(stderr);
return (0);
}
|
