Hi,
I think that ubuntu's package version might have some problem. I just
downloaded source code from open mpi and it just worked after source
installation.
Thank you,
Sang Chul
P.S. The code was as follows. I ran it with $ mpirun -n 2 hello
===============================================================================
#include <stdio.h>
#include <mpi.h>
int
main (int argc, char *argv[])
{
int myrank, size;
fprintf (stderr, "Before MPI_Init\n");
MPI_Init (&argc, &argv); /* Initialize MPI */
MPI_Comm_rank (MPI_COMM_WORLD, &myrank); /* Get my rank */
MPI_Comm_size (MPI_COMM_WORLD, &size); /* Get the total
number of processors */
fprintf (stderr, "MPI_Comm_size\n");
printf ("Processor %d of %d: Hello World!\n", myrank, size);
MPI_Finalize (); /* Terminate MPI */
return 0;
}
===============================================================================
On Wed, May 7, 2008 at 5:48 PM, Barry Rountree <rount...@cs.uga.edu> wrote:
> On Wed, May 07, 2008 at 03:47:24PM -0400, Sang Chul Choi wrote:
> > Hi,
> >
> > I tried to run a hello world example of mpi code. It just hangs at
> > MPI_Init. My machine is installed with Ubuntu linux and I install some
> > package of open mpi. Compiling was okay, but running the code hangs at
> > MPI_Init. Is there any specific things that I should do before running
> > mpi code such as "mpd" setup?
> >
> > I will appreciate any help.
>
> Could you post the code and how you're executing it?
>
>
> >
> > Thank you,
> >
> > Sang Chul
> >
> > --
> > ===============================
> > Live, Learn, and Love!
> > Sang Chul is at Piscataway.
> > Work: +1-732-445-2681
> > ===============================
>
>
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