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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) 2021-2024 Nanook Consulting All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#define _GNU_SOURCE
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <pthread.h>
#include <pmix.h>
static pmix_proc_t myproc;
void* myThread(void* vargp)
{
pmix_status_t rc;
pmix_proc_t proc;
pmix_value_t *val;
PMIX_LOAD_PROCID(&proc, myproc.nspace, 1);
fprintf(stderr, "Fetching remote\n");
rc = PMIx_Get(&proc, "remote", NULL, 0, &val);
fprintf(stderr, "Client ns %s rank %d: PMIx_Get %s returned: %s(%d)\n",
myproc.nspace, myproc.rank, "foobar", PMIx_Error_string(rc), rc);
return NULL;
}
int main(int argc, char **argv)
{
pmix_status_t rc;
pmix_value_t value;
pmix_value_t *val = &value;
char *tmp;
pmix_proc_t proc;
uint32_t nprocs, n, k;
pmix_info_t *info, i2;
bool flag;
pthread_t thread_id[4];
/* init us - note that the call to "init" includes the return of
* any job-related info provided by the RM. This includes the
* location of all procs in our job */
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);
}
fprintf(stderr, "Client ns %s rank %d Running\n", myproc.nspace, myproc.rank);
value.type = PMIX_UINT64;
value.data.uint64 = 1234;
if (PMIX_SUCCESS != (rc = PMIx_Put(PMIX_LOCAL, "local", &value))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Put internal failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
value.type = PMIX_UINT64;
value.data.uint64 = 5678;
if (PMIX_SUCCESS != (rc = PMIx_Put(PMIX_REMOTE, "remote", &value))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Put internal failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
/* push the data to our PMIx server */
if (PMIX_SUCCESS != (rc = PMIx_Commit())) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Commit failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
/* call fence to synchronize with our peers - instruct
* the fence operation to collect and return all "put"
* data from our peers */
PMIX_INFO_CREATE(info, 1);
flag = true;
PMIX_INFO_LOAD(info, PMIX_COLLECT_DATA, &flag, PMIX_BOOL);
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
if (PMIX_SUCCESS != (rc = PMIx_Fence(&proc, 1, info, 1))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Fence failed: %d\n", myproc.nspace, myproc.rank,
rc);
goto done;
}
PMIX_INFO_FREE(info, 1);
// spawn a few threads - each thread attempts to get data
// published by a peer
if (0 == myproc.rank) {
fprintf(stderr, "%u: SPAWNING THREADS\n", myproc.rank);
for (n=0; n < 4; n++) {
pthread_create(&thread_id[n], NULL, myThread, NULL);
}
// collect them all
for (n=0; n < 4; n++) {
pthread_join(thread_id[n], NULL);
}
}
done:
/* finalize us */
rc = PMIx_Finalize(NULL, 0);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "Client ns %s rank %d:PMIx_Finalize failed: %d\n", myproc.nspace,
myproc.rank, rc);
}
fflush(stderr);
return (0);
}
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