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/*
* Copyright (c) 2018-2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2021 Nanook Consulting. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
*/
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <pmix.h>
static pmix_proc_t myproc;
struct timeval start, end;
static bool completed;
double sec;
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)
{
gettimeofday(&end, NULL);
int i;
char name[255];
gethostname(name, 255);
if ((info[0].value.data.proc != NULL)
&& strcmp(info[0].value.data.proc->nspace, myproc.nspace) == 0) {
for (i = 0; i < ninfo; i++) {
fprintf(stderr,
"%s Client %s:%d NOTIFIED with status %d and error proc %s:%d key %s \n", name,
myproc.nspace, myproc.rank, status, info[i].value.data.proc->nspace,
info[i].value.data.proc->rank, info[i].key);
}
completed = true;
if (NULL != cbfunc) {
cbfunc(PMIX_EVENT_ACTION_COMPLETE, NULL, 0, NULL, NULL, cbdata);
}
} else
fprintf(stderr, "Not from my namespace");
}
static void op_callbk(pmix_status_t status, void *cbdata)
{
fprintf(stderr, "Client %s:%d OP CALLBACK CALLED WITH STATUS %d\n", myproc.nspace, myproc.rank,
status);
}
static void errhandler_reg_callbk(pmix_status_t status, size_t errhandler_ref, void *cbdata)
{
fprintf(stderr,
"Client %s:%d ERRHANDLER REGISTRATION CALLBACK CALLED WITH STATUS %d, ref=%lu\n",
myproc.nspace, myproc.rank, 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;
pid_t pid;
char name[255];
/* 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);
}
gethostname(name, 255);
fprintf(stderr, "%s Client ns %s rank %d: Running\n", name, myproc.nspace, myproc.rank);
PMIX_PROC_CONSTRUCT(&proc);
(void) strncpy(proc.nspace, myproc.nspace, PMIX_MAX_NSLEN);
proc.rank = PMIX_RANK_WILDCARD;
/* get our universe size */
if (PMIX_SUCCESS != (rc = PMIx_Get(&proc, PMIX_UNIV_SIZE, NULL, 0, &val))) {
fprintf(stderr, "Client ns %s rank %d: PMIx_Get universe size failed: %d\n", myproc.nspace,
myproc.rank, rc);
goto done;
}
nprocs = val->data.uint32;
PMIX_VALUE_RELEASE(val);
// fprintf(stderr, "Client %s:%d universe size %d\n", myproc.nspace, myproc.rank, nprocs);
completed = false;
pmix_status_t status;
status = PMIX_ERR_PROC_ABORTED;
/* register our errhandler */
PMIx_Register_event_handler(&status, 1, NULL, 0, notification_fn, errhandler_reg_callbk, NULL);
/* call fence to sync */
PMIX_PROC_CONSTRUCT(&proc);
(void) strncpy(proc.nspace, myproc.nspace, PMIX_MAX_NSLEN);
proc.rank = PMIX_RANK_WILDCARD;
sleep(3);
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;
}
if (myproc.rank == 3) {
fprintf(stderr, "\nClient ns %s:%d kill its host \n", myproc.nspace, myproc.rank);
completed = true;
pid = getppid();
}
gettimeofday(&start, NULL);
if (myproc.rank == 3) {
kill(pid, 9);
}
while (!completed) {
struct timespec ts;
ts.tv_sec = 0;
ts.tv_nsec = 100000;
nanosleep(&ts, NULL);
}
done:
sec = end.tv_sec + (double) end.tv_usec / 1000000.0 - start.tv_sec
- (double) start.tv_usec / 1000000.0;
fprintf(stderr, "Client ns %s rank %d takes %f Finalizing\n", myproc.nspace, myproc.rank, sec);
/* finalize us */
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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