[O-MPI users] Configuring port

[Enrique Curchitser]

Hi,

I put together a small cluster (4 computers) which has one head node  
that sees the world
and 3 that are on a private network.  If I want to use the head node  
(which has 2 NICs)
as part of the ring, how do I tell it to go over the NIC that is part  
of the private network?
In mpich, there is a modification to the hostfile, but I did not see  
any such thing with OpenMPI

Thanks,

Enrique

_________________
Enrique Curchitser
ec...@columbia.edu