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Subject: [OMPI users] excluding hosts
From: David Turner (dpturner_at_[hidden])
Date: 2010-04-06 17:28:42


Hi,

Our cluster has a handful of login nodes, and then a bunch of
compute nodes. OpenMPI is installed in a global file system
visible from both sets of nodes. This means users can type
"mpirun" from an interactive prompt, and quickly oversubscribe
the login node.

So, is there a way to explicitly exclude hosts from consideration
for mpirun? To prevent (what is usually accidental) running
MPI apps on our login nodes? Thanks!

-- 
Best regards,
David Turner
User Services Group        email: dpturner_at_[hidden]
NERSC Division             phone: (510) 486-4027
Lawrence Berkeley Lab        fax: (510) 486-4316