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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpi.h"
#include <iostream>
#include "mpitestconf.h"
#include "mpitestcxx.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;
int leftGroup;
MPI::Intercomm comm;
MPI::Datatype datatype;
MTest_Init();
datatype = MPI::INT;
while (MTestGetIntercomm(comm, leftGroup, 4)) {
if (comm == MPI::COMM_NULL)
continue;
/* Get an intercommunicator */
if (leftGroup) {
try {
comm.Barrier();
}
catch(MPI::Exception e) {
errs++;
MTestPrintError(e.Get_error_code());
}
} else {
/* In the right group */
try {
comm.Barrier();
}
catch(MPI::Exception e) {
errs++;
MTestPrintError(e.Get_error_code());
}
}
MTestFreeComm(comm);
}
MTest_Finalize(errs);
return 0;
}
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