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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) 2021-2022 Nanook Consulting. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#include "src/include/pmix_config.h"
#include "include/pmix.h"
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include "src/class/pmix_object.h"
#include "src/include/pmix_globals.h"
#include "src/util/pmix_argv.h"
#include "src/util/pmix_output.h"
#include "src/util/pmix_printf.h"
static pmix_proc_t myproc;
static bool completed;
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)
{
size_t n;
PMIX_HIDE_UNUSED_PARAMS(evhdlr_registration_id, results, nresults);
pmix_output(0, "Client %s:%d NOTIFIED with status %s source %s:%d and %d info", myproc.nspace,
myproc.rank, PMIx_Error_string(status), source->nspace, source->rank, (int) ninfo);
for (n = 0; n < ninfo; n++) {
if (0 == strncmp(info[n].key, PMIX_PROCID, PMIX_MAX_KEYLEN)
&& PMIX_PROC == info[n].value.type) {
pmix_output(0, "[%s:%d] added proc: %s:%d", myproc.nspace, myproc.rank,
info[n].value.data.proc->nspace, info[n].value.data.proc->rank);
} else {
pmix_output(0, "[%s:%d] key: %s", myproc.nspace, myproc.rank, info[n].key);
}
}
if (NULL != cbfunc) {
cbfunc(PMIX_SUCCESS, NULL, 0, NULL, NULL, cbdata);
}
completed = true;
}
static void op_callbk(pmix_status_t status, void *cbdata)
{
PMIX_HIDE_UNUSED_PARAMS(cbdata);
pmix_output(0, "CLIENT: OP CALLBACK CALLED WITH STATUS %d", status);
}
static void errhandler_reg_callbk(pmix_status_t status, size_t errhandler_ref, void *cbdata)
{
PMIX_HIDE_UNUSED_PARAMS(cbdata);
pmix_output(0, "Client: ERRHANDLER REGISTRATION CALLBACK CALLED WITH STATUS %d, ref=%lu",
status, (unsigned long) errhandler_ref);
}
int main(int argc, char **argv)
{
int rc;
pmix_value_t value;
pmix_value_t *val = &value;
pmix_proc_t proc;
uint32_t nprocs;
pmix_status_t code[6] = {PMIX_ERR_PROC_ABORTING, PMIX_ERR_PROC_ABORTED,
PMIX_ERR_PROC_REQUESTED_ABORT, PMIX_ERR_JOB_TERMINATED,
PMIX_ERR_UNREACH, PMIX_ERR_LOST_CONNECTION};
bool fail_early = false;
bool fail_after_participate = false;
int opt;
if (1 == argc) {
fail_early = true;
} else if (2 == argc) {
opt = strtol(argv[1], NULL, 10);
switch(opt) {
case 0:
fail_early = true;
break;
case 1:
fail_after_participate = true;
break;
default:
fprintf(stderr, "Unknown case\n");
exit(1);
}
}
/* init us */
if (PMIX_SUCCESS != (rc = PMIx_Init(&myproc, NULL, 0))) {
pmix_output(0, "Client ns %s rank %d: PMIx_Init failed: %d", myproc.nspace, myproc.rank,
rc);
exit(0);
}
pmix_output(0, "Client ns %s rank %d: Running", myproc.nspace, myproc.rank);
/* get our job size */
pmix_strncpy(proc.nspace, myproc.nspace, PMIX_MAX_NSLEN);
proc.rank = PMIX_RANK_WILDCARD;
if (PMIX_SUCCESS != (rc = PMIx_Get(&proc, PMIX_JOB_SIZE, NULL, 0, &val))) {
pmix_output(0, "Client ns %s rank %d: PMIx_Get job size failed: %s", myproc.nspace,
myproc.rank, PMIx_Error_string(rc));
goto done;
}
nprocs = val->data.uint32;
PMIX_VALUE_RELEASE(val);
pmix_output(0, "Client %s:%d job size %d", myproc.nspace, myproc.rank, nprocs);
completed = false;
/* register our errhandler */
PMIx_Register_event_handler(code, 6, NULL, 0, notification_fn, errhandler_reg_callbk, NULL);
/* call fence to sync */
PMIX_PROC_CONSTRUCT(&proc);
pmix_strncpy(proc.nspace, myproc.nspace, PMIX_MAX_NSLEN);
proc.rank = PMIX_RANK_WILDCARD;
if (PMIX_SUCCESS != (rc = PMIx_Fence(&proc, 1, NULL, 0))) {
pmix_output(0, "Client ns %s rank %d: PMIx_Fence failed: %d", myproc.nspace, myproc.rank,
rc);
goto done;
}
if (0 == myproc.rank) {
if (fail_early) {
// wait a little bit to let someone else start the collective
usleep(1000);
pmix_output(0, "Client ns %s rank %d: bye-bye!", myproc.nspace, myproc.rank);
exit(1);
} else if (fail_after_participate) {
usleep(500000);
pmix_output(0, "Client ns %s rank %d: bye-bye!", myproc.nspace, myproc.rank);
exit(1);
}
} else {
if (fail_early) {
if (1 != myproc.rank) {
// wait a little bit to let the other guy start the collective
usleep(2000);
}
pmix_output(0, "Rank %u calling Fence", myproc.rank);
rc = PMIx_Fence(&proc, 1, NULL, 0);
// let the user know
pmix_output(0, "Rank %u: Fence returned %d(%s)", myproc.rank, rc, PMIx_Error_string(rc));
// give the server a chance to learn of the problem
while (!completed) {
struct timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 100000;
nanosleep(&ts, NULL);
}
}
}
done:
/* finalize us */
pmix_output(0, "Client ns %s rank %d: Finalizing", myproc.nspace, myproc.rank);
PMIx_Deregister_event_handler(1, op_callbk, NULL);
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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