Dear all,

    When I recently run the mpi version of meep, I have a problem that when I 
type: mpirun -np 4 meep-mpi ***.ctl, it returns

using MPI version 2.0, 1 processes
using MPI version 2.0, 1 processes
using MPI version 2.0, 1 processes
using MPI version 2.0, 1 processes

.....

It seems that the it just run 4 copies of the script rather than working 
parallelly. I am running on a cluster.

Where does the problem come from? I sincerely thank all of you for your 
attention and help.

Yi Ding 
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