[BProc] Start processes in master with mpirun?

[J S <joa...@ya...>]

We have a 3 computer cluster (each one a dual AMD), 
and wish to use them all to do work. We have one of
them configured as a master, and the other 2 as slaves
(nodes 0-1). 

Executing

NODES=-1,0,1 mpirun -np 6 -s --p4 ./cpi
Could not get number of cpus for node -1, assuming 1
Not enough nodes to allocate all processes

(It works well with NODES=0,1 for -np 4)

We are using Bproc and MPICH w/ clustermatic. How can
I tell mpirun to start 2 processes in the master node?

Thanks in advance,
João Silva



		
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