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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 (c) 2022 ParTec AG. 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 "examples.h"
#include <pmix.h>
int main(int argc, char **argv)
{
pmix_proc_t myproc;
pmix_status_t rc;
pmix_value_t *val = NULL;
pmix_proc_t proc;
EXAMPLES_HIDE_UNUSED_PARAMS(argc, argv);
if (PMIX_SUCCESS != (rc = PMIx_Init(&myproc, NULL, 0))) {
if (PMIX_ERR_UNREACH == rc) {
fprintf(stderr, "%s: Cannot operate as singleton\n",
PMIx_Proc_string(&myproc));
} else {
fprintf(stderr, "%s: PMIx_Init failed: %s\n",
PMIx_Proc_string(&myproc),
PMIx_Error_string(rc));
}
exit(1);
}
fprintf(stderr, "%s: Running\n", PMIx_Proc_string(&myproc));
// get our rank
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_INVALID);
rc = PMIx_Get(&proc, PMIX_RANK, NULL, 0, &val);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "%s: Get rank failed - %s\n", PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
fflush(stderr);
goto done;
}
if (val->data.rank != myproc.rank) {
fprintf(stderr, "%s: Get rank returned wrong rank - %u instead of %u\n",
PMIx_Proc_string(&myproc), val->data.rank, myproc.rank);
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: Rank return correct\n", PMIx_Proc_string(&myproc));
PMIX_VALUE_RELEASE(val);
// get our node ID
rc = PMIx_Get(&myproc, PMIX_NODEID, NULL, 0, &val);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "%s: Get my nodeID failed - %s\n", PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
fflush(stderr);
goto done;
}
// rank=0 is on node 0, rank=1 on node 1
if (val->data.uint32 != myproc.rank) {
fprintf(stderr, "%s: Get my nodeID returned wrong value - %u instead of %u\n",
PMIx_Proc_string(&myproc), val->data.uint32, myproc.rank);
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: NodeID return correct\n", PMIx_Proc_string(&myproc));
PMIX_VALUE_RELEASE(val);
// get our node ID with rank=WILDCARD - should fail!
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
rc = PMIx_Get(&proc, PMIX_NODEID, NULL, 0, &val);
if (PMIX_SUCCESS == rc) {
fprintf(stderr, "%s: Get my nodeID with WILDCARD rank incorrectly succeeded\n",
PMIx_Proc_string(&myproc));
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: NodeID with WILDCARD rank correctly failed - %s\n",
PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
PMIX_VALUE_RELEASE(val);
// get our peer's nodeID
if (0 == myproc.rank) {
proc.rank = 1;
} else {
proc.rank = 0;
}
rc = PMIx_Get(&proc, PMIX_NODEID, NULL, 0, &val);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "%s: Get peer's nodeID failed - %s\n", PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
fflush(stderr);
goto done;
}
// rank=0 is on node 0, rank=1 on node 1
if (val->data.uint32 != proc.rank) {
fprintf(stderr, "%s: Get peer's nodeID returned wrong value - %u instead of %u\n",
PMIx_Proc_string(&myproc), val->data.uint32, proc.rank);
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: Peer's NodeID return correct\n", PMIx_Proc_string(&myproc));
PMIX_VALUE_RELEASE(val);
// get our appnum
rc = PMIx_Get(&myproc, PMIX_APPNUM, NULL, 0, &val);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "%s: Get my appnum failed - %s\n", PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
fflush(stderr);
goto done;
}
// rank=0 is on node 0, rank=1 on node 1
if (val->data.uint32 != myproc.rank) {
fprintf(stderr, "%s: Get my appnum returned wrong value - %u instead of %u\n",
PMIx_Proc_string(&myproc), val->data.uint32, myproc.rank);
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: Appnum return correct\n", PMIx_Proc_string(&myproc));
PMIX_VALUE_RELEASE(val);
// get appnum with WILDCARD - should fail!
PMIX_LOAD_PROCID(&proc, myproc.nspace, PMIX_RANK_WILDCARD);
rc = PMIx_Get(&proc, PMIX_APPNUM, NULL, 0, &val);
if (PMIX_SUCCESS == rc) {
fprintf(stderr, "%s: Get appnum with WILDCARD incorrectly succeeded - returned %u\n",
PMIx_Proc_string(&myproc), val->data.uint32);
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: Appnum with WILDCARD rank correctly failed - %s\n",
PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
PMIX_VALUE_RELEASE(val);
// get peer's appnum
if (0 == myproc.rank) {
proc.rank = 1;
} else {
proc.rank = 0;
}
rc = PMIx_Get(&proc, PMIX_APPNUM, NULL, 0, &val);
if (PMIX_SUCCESS != rc) {
fprintf(stderr, "%s: Get peer's appnum failed - %s\n", PMIx_Proc_string(&myproc), PMIx_Error_string(rc));
fflush(stderr);
goto done;
}
// rank=0 is in appnum 0, rank=1 is in appnum 1
if (val->data.uint32 != proc.rank) {
fprintf(stderr, "%s: Get peer's appnum returned wrong value - %u instead of %u\n",
PMIx_Proc_string(&myproc), val->data.uint32, proc.rank);
fflush(stderr);
goto done;
}
fprintf(stderr, "%s: Peer's Appnum return correct\n", PMIx_Proc_string(&myproc));
PMIX_VALUE_RELEASE(val);
done:
/* finalize us */
rc = PMIx_Finalize(NULL, 0);
fflush(stderr);
return (0);
}
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