[OMPI users] mpirun works locally but not through network

[Nguyen Kim Son]

Hi all,


I'am writing a small program where the process of rank 0 sends "alo
alo" to the process of rank 1 and then process 1 will show this message on
screen. I am using boost++ library but result stays the same when I use the MPI 
standard.

The program work locally ( that means: mpirun --host localhost), on the distant 
machine (mpirun --host name_of_distant_machine) but not on both ( mpirun --host 
localhost, name_of_distant_machine). There is no error message so i don't have 
any idea to resolve this.
The machine I am running is a virtual one, and the distant machine too.
Thank you in advance!

Son.

Nguyen Kim Son.
Antibes, France
Tel: +336 48 28 37 47



      
#include <boost/mpi.hpp>
#include <iostream>
#include <string>
using namespace std;
namespace mpi=boost::mpi;

int main(int argc, char ** argv){
    mpi::environment env(argc, argv);
    mpi::communicator world;
    int rank = world.rank();
    string s;
    int tag = 10;
    if (rank == 0){
        int dest = 1;
        s = "alo alo?";
        world.send(dest, tag,s );//blocking communication
    }else if (rank==1){
        int source = 0;
        world.recv(source, tag, s);
        cout << s << endl;
    };
};