Mpi problems

[cjereme at ucla.edu]

Hello All,

I am trying to run mpi on two test nodes, but I am getting a "connection
refused error."

I have setup ssh so nodes  can ssh 
to n1 -> n2, n1->n1, n2 -> n2 and n2-> n1. mpich is nfs mounted on the n2.

But when I try to run mpirun -machinefile hostfile -np 2 /blah blah

I am getting a connection refused error --

Does Anyone have any ideas?

thanks,

-C