Hi David Are you using a scheduler of some kind? If so, you can add this to your default mca param file:
orte_allocation_required = 1 This will prevent anyone running without having an allocation. You can also set rmaps_base_no_schedule_local = 1 which tells mpirun not to schedule any MPI procs on the local node. Does that solve the problem? Ralph On Apr 6, 2010, at 3:28 PM, David Turner wrote: > 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: dptur...@lbl.gov > NERSC Division phone: (510) 486-4027 > Lawrence Berkeley Lab fax: (510) 486-4316 > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
