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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
/* test/wait on an inactive persistent collective operation. */
#include "mpi.h"
#include "mpitest.h"
static void init_status(MPI_Status * status);
static int check_empty_status(MPI_Status status);
int main(int argc, char **argv)
{
MPI_Status status;
MPI_Request req;
int flag;
int errs = 0;
int a;
MTest_Init(&argc, &argv);
MPI_Bcast_init(&a, 1, MPI_INT, 0, MPI_COMM_WORLD, MPI_INFO_NULL, &req);
/* test should return flag=true and empty status */
init_status(&status);
MPI_Test(&req, &flag, &status);
if (!flag) {
++errs;
}
errs += check_empty_status(status);
/* wait should return empty status */
init_status(&status);
MPI_Wait(&req, &status);
errs += check_empty_status(status);
MPI_Request_free(&req);
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
/* static routines to init and verify status object */
static void init_status(MPI_Status * status)
{
status->MPI_TAG = 42;
status->MPI_SOURCE = 42;
MPI_Status_set_elements(status, MPI_INT, 42);
MPI_Status_set_cancelled(status, 1);
}
static int check_empty_status(MPI_Status status)
{
int errs = 0;
if (status.MPI_TAG != MPI_ANY_TAG) {
++errs;
}
if (status.MPI_SOURCE != MPI_ANY_SOURCE) {
++errs;
}
int count;
MPI_Get_elements(&status, MPI_INT, &count);
if (count != 0) {
++errs;
}
int flag;
MPI_Test_cancelled(&status, &flag);
if (flag != 0) {
++errs;
}
return errs;
}
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