Re: [Condor-users] graceful coexistence of vanilla and mpi jobs

[Greg Thain <gthain@xxxxxxxxxxx>]

Wolf-Dieter Klotz wrote:
> Hi all,
> I have a Condor pool of 41 machines. Out of these I declared 5 machines 
> as dedicated mpi resources. If vanilla jobs are executing on these 
> dedicated machines because the scheduler found these machines idle and 
> unclaimed and a mpi job is submitted, the vanilla jobs are brutally 
> killed and restarted once the mpi job has finished executing. Is there a 
> way to let the mpi job wait for the vanilla job's completion?

If you have set up Condor as recommended for MPI jobs, you will have a 
line like this in your config file:

RANK = Scheduler =?= $(DedicatedScheduler)

If you comment this out, the vanilla jobs should not get preempted. 
However, it may cause the MPI jobs to wait a long time to start.

-greg