Subject: Re: [Boost-build] Compiling Boost.MPI and mpich2 under Suse Linux
From: Belcourt, Kenneth (kbelco_at_[hidden])
Date: 2010-05-28 14:52:42
I'd step back from Boost.MPI for now. Write the canonical 10 line MPI
program to print out the parallel size and rank and make sure this
program runs without Boost, just MPI by itself. Look carefully at
what libraries are linked and which mpirun is used to exec the binary.
-- Noel
Here's what I mean.
#include <iostream>
#include "mpi.h"
int main (int argc, char *argv[])
{
MPI_Init(&argc, &argv);
int rank = 0;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
std::cout << "hello from processor " << rank << std::endl;
MPI_Finalize();
return 0;
}