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#include <stdio.h>
#include <sys/types.h>
#include <unistd.h>
#include <pmix.h>
int main(int argc, char* argv[])
{
pmix_proc_t myproc;
char hostname[1024];
pid_t pid;
pmix_value_t *val = NULL;
pmix_app_t apps[2];
pmix_nspace_t nspace;
pmix_status_t rc;
pid = getpid();
gethostname(hostname, 1024);
PMIx_Init(&myproc, NULL, 0);
rc = PMIx_Get(&myproc, PMIX_PARENT_ID, NULL, 0, &val);
/* If we don't find it, then we're the parent */
if (PMIX_SUCCESS != rc) {
printf("Parent [pid %ld] about to spawn!\n", (long)pid);
PMIX_APP_CONSTRUCT(&apps[0]);
apps[0].cmd = strdup(argv[0]);
PMIX_ARGV_APPEND(rc, apps[0].argv, "This is job 1");
apps[0].maxprocs = 2;
PMIX_APP_CONSTRUCT(&apps[1]);
apps[1].cmd = strdup(argv[0]);
PMIX_ARGV_APPEND(rc, apps[1].argv, "This is job 2");
apps[1].maxprocs = 2;
rc = PMIx_Spawn(NULL, 0, apps, 2, nspace);
if (PMIX_SUCCESS != rc) {
printf("Child failed to spawn\n");
return rc;
}
printf("Parent done with spawn\n");
}
/* Otherwise, we're the child */
else {
printf("Hello from the child %s.%u on host %s pid %ld argv[1] = %s\n",
myproc.nspace, myproc.rank, hostname, (long)pid, argv[1]);
}
PMIx_Finalize(NULL, 0);
return 0;
}
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