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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
/* Based on test code provided by Lisandro Dalcí. */
#include <mpi.h>
#include <stdio.h>
#include <stdlib.h>
#include "mpithreadtest.h"
#include "mpitest.h"
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/*
static char MTEST_Descrip[] = "threaded generalized request tests";
*/
#define IF_VERBOSE(a) \
do { \
if (verbose) { \
printf a ; \
fflush(stdout); \
} \
} while (0)
static int verbose = 0;
int query_fn(void *extra_state, MPI_Status * status);
int query_fn(void *extra_state, MPI_Status * status)
{
status->MPI_SOURCE = MPI_UNDEFINED;
status->MPI_TAG = MPI_UNDEFINED;
MPI_Status_set_cancelled(status, 0);
MPI_Status_set_elements(status, MPI_BYTE, 0);
return 0;
}
int free_fn(void *extra_state);
int free_fn(void *extra_state)
{
return 0;
}
int cancel_fn(void *extra_state, int complete);
int cancel_fn(void *extra_state, int complete)
{
return 0;
}
MPI_Request grequest;
MTEST_THREAD_RETURN_TYPE do_work(void *arg);
MTEST_THREAD_RETURN_TYPE do_work(void *arg)
{
MPI_Request *req = (MPI_Request *) arg;
IF_VERBOSE(("Starting work in thread ...\n"));
MTestSleep(3);
IF_VERBOSE(("Work in thread done !!!\n"));
MPI_Grequest_complete(*req);
return MTEST_THREAD_RETVAL_IGN;
}
int main(int argc, char *argv[])
{
int provided;
MPI_Request request;
int outcount = -1;
int indices[1] = { -1 };
MPI_Status status;
char *env;
env = getenv("MPITEST_VERBOSE");
if (env) {
if (*env != '0')
verbose = 1;
}
MTest_Init_thread(&argc, &argv, MPI_THREAD_MULTIPLE, &provided);
if (provided != MPI_THREAD_MULTIPLE) {
printf("This test requires MPI_THREAD_MULTIPLE\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
IF_VERBOSE(("Post Init ...\n"));
MPI_Grequest_start(query_fn, free_fn, cancel_fn, NULL, &request);
grequest = request; /* copy the handle */
MTest_Start_thread(do_work, &grequest);
IF_VERBOSE(("Waiting ...\n"));
MPI_Wait(&request, &status);
MTest_Join_threads();
MPI_Grequest_start(query_fn, free_fn, cancel_fn, NULL, &request);
grequest = request; /* copy the handle */
MTest_Start_thread(do_work, &grequest);
IF_VERBOSE(("Waiting ...\n"));
MPI_Waitsome(1, &request, &outcount, indices, &status);
MTest_Join_threads();
MPI_Grequest_start(query_fn, free_fn, cancel_fn, NULL, &request);
grequest = request; /* copy the handle */
MTest_Start_thread(do_work, &grequest);
IF_VERBOSE(("Waiting ...\n"));
MPI_Waitall(1, &request, &status);
MTest_Join_threads();
IF_VERBOSE(("Goodbye !!!\n"));
MTest_Finalize(0);
return 0;
}
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