On Mon, Aug 3, 2009 at 9:47 AM, Ralph Castain <rhc@open-mpi.org> wrote:
You are both correct. If you simply type "mpirun pvserver", then we will execute pvserver on whatever machine is local.

However, if you type "mpirun -n 1 -H host1 pvserver", then we will start pvserver on the specified host. Note that mpirun will still be executing on your local machine - but pvserver will be running on the specified host.

Ralph

Ralph,

Does anything change based on where mpirun is executing?

Can you shed any light on the initial question of asymmetric behavior?

Thanks,

David