Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

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


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