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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
#include "mpitest.h"
#include "mpicolltest.h"
/*
static char MTEST_Descrip[] = "Simple intercomm barrier test";
*/
/* This only checks that the Barrier operation accepts intercommunicators.
It does not check for the semantics of a intercomm barrier (all processes
in the local group can exit when (but not before) all processes in the
remote group enter the barrier */
int main(int argc, char *argv[])
{
int errs = 0, err;
int leftGroup;
MPI_Comm comm;
MTest_Init(&argc, &argv);
/* Get an intercommunicator */
while (MTestGetIntercomm(&comm, &leftGroup, 4)) {
if (comm == MPI_COMM_NULL)
continue;
/* To improve reporting of problems about operations, we
* change the error handler to errors return */
MPI_Comm_set_errhandler(comm, MPI_ERRORS_RETURN);
if (leftGroup) {
err = MTest_Barrier(comm);
if (err) {
errs++;
MTestPrintError(err);
}
} else {
/* In the right group */
err = MTest_Barrier(comm);
if (err) {
errs++;
MTestPrintError(err);
}
}
MTestFreeComm(&comm);
}
MTest_Finalize(errs);
return MTestReturnValue(errs);
}
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