Eugene Loh wrote:
Addepalli, Srirangam V wrote:
i tried using the following syntax with machinefile
mpirun -np 14 -npernode 7 -machinefile machinefile ven_nw.e <coll.dt5
It "works" for me. I'm not using SGE, though.
% cat machinefile
% mpirun -tag-output -np 14 -npernode 7 -machinefile machinefile hostname
Incidentally, the key ingredient here is the "-npernode 7" part. The
machine file only needs enough slots. E.g., you could have had:
% cat machinefile
node0 slots=20
node1 slots=20
mpirun will see that there are enough slots on each node, but load only
7 up per node due to the -npernode switch.
That said, I don't know what's going wrong in your case -- only that
things work as advertised for me.
