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/* -*- Mode: C++; c-basic-offset:4 ; -*- */
/*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*
*/
/* style: c++ header */
/*
* Simple test program for C++ binding
*/
/* #include <stdio.h> */
#include "mpi.h"
#include "mpitestconf.h"
#include "mpitestcxx.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
int main(int argc, char *argv[])
{
int rank, size, errs = 0;
MTest_Init();
rank = MPI::COMM_WORLD.Get_rank();
size = MPI::COMM_WORLD.Get_size();
if (size < 2) {
cerr << "Size of comm_world must be at least 2\n";
MPI::COMM_WORLD.Abort(1);
}
if (rank == 0) {
int *buf = new int[100];
int i;
for (i = 0; i < 100; i++)
buf[i] = i;
MPI::COMM_WORLD.Send(buf, 100, MPI::INT, size - 1, 0);
delete[]buf;
} else if (rank == size - 1) {
int *buf = new int[100];
int i;
MPI::COMM_WORLD.Recv(buf, 100, MPI::INT, 0, 0);
for (i = 0; i < 100; i++) {
if (buf[i] != i) {
errs++;
cerr << "Error: buf[" << i << "] = " << buf[i] << "\n";
}
}
delete[]buf;
}
MTest_Finalize(errs);
return 0;
}
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