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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 IBM Corporation. All rights reserved.
* Copyright (c) 2021-2025 Nanook Consulting All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#define _GNU_SOURCE
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <libgen.h>
#include <pmix.h>
#include "examples.h"
#define NITER 3
int main(int argc, char **argv)
{
pmix_proc_t myproc;
int rc, n;
pmix_value_t *val = NULL;
pmix_proc_t proc;
uint32_t nprocs;
pmix_info_t info[2], lkinfo[2];
pmix_pdata_t pdata;
pmix_persistence_t firstread = PMIX_PERSIST_FIRST_READ;
int timeout=10;
char *tmp;
int iters;
if (1 < argc) {
iters = strtol(argv[1], NULL, 10);
} else {
iters = NITER;
}
/* init us */
if (PMIX_SUCCESS != (rc = PMIx_Init(&myproc, NULL, 0))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Init failed: %d\n", myproc.nspace, myproc.rank,
rc);
exit(0);
}
/* get our job size */
PMIX_PROC_CONSTRUCT(&proc);
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
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: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
nprocs = val->data.uint32;
PMIX_VALUE_RELEASE(val);
// require at least 2 procs
if (nprocs != 2) {
if (0 == myproc.rank) {
fprintf(stderr, "%s requires 2 processes\n", basename(argv[0]));
}
exit(1);
}
PMIX_INFO_LOAD(&info[1], PMIX_PERSISTENCE, &firstread, PMIX_PERSIST);
PMIX_INFO_LOAD(&lkinfo[0], PMIX_WAIT, NULL, PMIX_BOOL);
PMIX_INFO_LOAD(&lkinfo[1], PMIX_TIMEOUT, &timeout, PMIX_INT);
for (n=0; n < iters; n++) {
if (0 == myproc.rank) {
/* publish something */
if (0 > asprintf(&tmp, "FOOBAR:%s.%u:%d", myproc.nspace, myproc.rank, n)) {
goto done;
}
PMIX_INFO_LOAD(&info[0], tmp, &n, PMIX_INT);
free(tmp);
if (PMIX_SUCCESS != (rc = PMIx_Publish(info, 2))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Publish failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
PMIX_INFO_DESTRUCT(&info[0]);
/* lookup other rank's value */
PMIX_PDATA_CONSTRUCT(&pdata);
if (0 > asprintf(&tmp, "BAZ:%s.%u:%d", myproc.nspace, 1, n)) {
goto done;
}
PMIX_LOAD_KEY(pdata.key, tmp);
free(tmp);
// lookup value
if (PMIX_SUCCESS != (rc = PMIx_Lookup(&pdata, 1, lkinfo, 2))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
/* check the return for value and source */
if (0 != strncmp(myproc.nspace, pdata.proc.nspace, PMIX_MAX_NSLEN)) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong nspace: %s\n",
myproc.nspace, myproc.rank, pdata.proc.nspace);
goto done;
}
if (1 != pdata.proc.rank) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong rank: %d\n",
myproc.nspace, myproc.rank, pdata.proc.rank);
goto done;
}
if (PMIX_INT != pdata.value.type) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong type: %d\n",
myproc.nspace, myproc.rank, pdata.value.type);
goto done;
}
if (n != pdata.value.data.integer) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong value: %d\n",
myproc.nspace, myproc.rank, (int) pdata.value.data.uint8);
goto done;
}
PMIX_PDATA_DESTRUCT(&pdata);
fprintf(stderr, "PUBLISH-LOOKUP SUCCEEDED: %d\n", n);
} else {
/* lookup other rank's value */
PMIX_PDATA_CONSTRUCT(&pdata);
if (0 > asprintf(&tmp, "FOOBAR:%s.%u:%d", myproc.nspace, 0, n)) {
goto done;
}
PMIX_LOAD_KEY(pdata.key, tmp);
free(tmp);
// check value
if (PMIX_SUCCESS != (rc = PMIx_Lookup(&pdata, 1, lkinfo, 2))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
/* check the return for value and source */
if (0 != strncmp(myproc.nspace, pdata.proc.nspace, PMIX_MAX_NSLEN)) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong nspace: %s\n",
myproc.nspace, myproc.rank, pdata.proc.nspace);
goto done;
}
if (0 != pdata.proc.rank) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong rank: %d\n",
myproc.nspace, myproc.rank, pdata.proc.rank);
goto done;
}
if (PMIX_INT != pdata.value.type) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong type: %d\n",
myproc.nspace, myproc.rank, pdata.value.type);
goto done;
}
if (n != pdata.value.data.integer) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Lookup returned wrong value: %d\n",
myproc.nspace, myproc.rank, (int) pdata.value.data.uint8);
goto done;
}
PMIX_PDATA_DESTRUCT(&pdata);
/* publish something */
if (0 > asprintf(&tmp, "BAZ:%s.%u:%d", myproc.nspace, myproc.rank, n)) {
goto done;
}
PMIX_INFO_LOAD(&info[0], tmp, &n, PMIX_INT);
free(tmp);
if (PMIX_SUCCESS != (rc = PMIx_Publish(info, 2))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Publish failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
PMIX_INFO_DESTRUCT(&info[0]);
}
}
done:
/* finalize us */
if (PMIX_SUCCESS != (rc = PMIx_Finalize(NULL, 0))) {
fprintf(stderr, "Client ns %s rank %d:PMIx_Finalize failed: %d\n", myproc.nspace,
myproc.rank, rc);
} else {
fprintf(stderr, "Client ns %s rank %d:PMIx_Finalize successfully completed\n",
myproc.nspace, myproc.rank);
}
fflush(stderr);
return (0);
}
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