Re: [Condor-users] Condor Parallel universe and sending jobs on same physical nodes.

[Mark Calleja <M.Calleja@xxxxxxxxxxxxxxx>]

Hi Manan,

Using the following on your execute nodes would mean that a single job 
would only ever run on the same physical machine:

ParallelSchedulingGroup     = "$(HOSTNAME)"
STARTD_EXPRS                = $(STARTD_EXPRS), DedicatedScheduler


You can of course bunch machines together by putting groups of them in 
different ParallelSchedulingGroups.

Cheers,
Mark

Manan Chopra wrote:
> Dear all,
> We have Condor set up for parallel universe of our cluster. 
> Our cluster has nodes which have two cpus and each cpu is dual core, so
> we have four cores on each node.  We use condor to run parallel jobs on
> our cluster. Usually we run jobs requiring 8 to 12 cores. When a job,
> for e.g. requiring 8 cores is submitted to the cluster it tends to 
> select 8  cores to run the job from many different nodes, we would
> ideally like to run a 8 core job on two nodes. 
>
> Is there any way in condor to enforce this criteria for forcing parallel
> jobs to run on cores on a same physical node.
>
> Thanks in advance. I will very much appreciate any response in this
> regard.
>
>