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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
/* Sanity check that logical operations can be performed on C++ bool types
* via MPI::BOOL. */
#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)
{
MPI::Intracomm comm = MPI::COMM_WORLD;
int errs = 0;
int size, i, count, root, rank;
MTest_Init();
size = comm.Get_size();
rank = comm.Get_rank();
for (count = 1; count < 66000; count = count * 2) {
bool *vin, *vout;
vin = new bool[count];
vout = new bool[count];
for (root = 0; root < size; root++) {
for (i = 0; i < count; i++) {
// only rank 0's elements are set to true
vin[i] = (rank ? false : true);
vout[i] = false;
}
comm.Reduce(vin, vout, count, MPI::BOOL, MPI::LOR, root);
if (rank == root) {
for (i = 0; i < count; i++) {
if (vout[i] != true) {
errs++;
if (errs < 10)
cerr << rank << ": " << "count=" << count
<< " root=" << root << " vout[" << i << "]=" << vout[i] << endl;
}
}
}
}
delete[]vin;
delete[]vout;
}
MTest_Finalize(errs);
return 0;
}
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