#include <boost/mpi/environment.hpp>
#include <boost/mpi/communicator.hpp>
#include <iostream>

namespace mpi = boost::mpi;

using namespace std;

int main() {
  mpi::environment env;
  mpi::communicator world;

  cout << "I am process " << world.rank() << " of " << world.size()
            << "." << endl;
  cout << " I am running on " << env.processor_name() << endl;

  return 0;
}