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/* -*- Mode: C++; c-basic-offset:4 ; -*- */
/*
* (C) 2003 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpi.h"
#include "mpitestconf.h"
#ifdef HAVE_IOSTREAM
// Not all C++ compilers have iostream instead of iostream.h
#include <iostream>
#ifdef HAVE_NAMESPACE_STD
// Those that do often need the std namespace; otherwise, a bare "cout"
// is likely to fail to compile
using namespace std;
#endif
#else
#include <iostream.h>
#endif
#include "mpitestcxx.h"
int main(int argc, char *argv[])
{
int error;
int rank, size;
char port[MPI_MAX_PORT_NAME];
MPI::Status status;
MPI::Intercomm comm;
MTEST_VG_MEM_INIT(port, MPI_MAX_PORT_NAME * sizeof(char));
MPI::Init(argc, argv);
size = MPI::COMM_WORLD.Get_size();
rank = MPI::COMM_WORLD.Get_rank();
if (size < 2) {
cout << "Two processes needed.\n";
return 0;
}
if (rank == 0) {
MPI::Open_port(MPI::INFO_NULL, port);
MPI::COMM_WORLD.Send(port, MPI::MAX_PORT_NAME, MPI::CHAR, 1, 0);
comm = MPI::COMM_SELF.Accept(port, MPI::INFO_NULL, 0);
MPI::Close_port(port);
comm.Disconnect();
} else if (rank == 1) {
MPI::COMM_WORLD.Recv(port, MPI::MAX_PORT_NAME, MPI::CHAR, 0, 0);
comm = MPI::COMM_SELF.Connect(port, MPI::INFO_NULL, 0);
comm.Disconnect();
}
MPI::COMM_WORLD.Barrier();
MTest_Finalize(0);
return 0;
}
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