Re: [Condor-users] quick questions

["Robert E. Parrott" <parrott@xxxxxxxxxxxxxxxx>]

Where can I find more info on "SYSTEM_PERIODIC_HOLD" ?

I;m not finding it in the condor manual.

thanks,
rob

On Feb 27, 2008, at 1:48 PM, Dan Bradley wrote:

> Robert E. Parrott wrote:
>
> > > > A couple of quick one-offs on configs:
> > > >
> > > > 1) How does a user specify a max runtime on a job from their submit
> > > > file?
> > > What do you want to achieve: putting the job on hold if it runs for
> > > too
> > > long?  Or simply specifying the maximum amount of time the job
> > > should be
> > > given to finish before being preempted by higher priority jobs?
> >
> > Here, I'd like to have users be able to specify the max total run
> > time for a parallel job before it's ended.
> Is this different from putting the job on hold if it runs too  
> long?  I'm
> not aware of any other option specific to the parallel job universe.
>
> > But I would be very interested in the answers to the other cases you
> > pose as well. I assume for the first you want to use a PERIODIC_HOLD
> > expression, but the second would be useful as well.
> Yes, periodic_hold in the job submit file can be used to put a job on
> hold if it runs too long.  An alternative would be to have users  
> insert
> a custom attribute that specifies maximum runtime and then you  
> would use
> SYSTEM_PERIODIC_HOLD in the config file to put jobs on hold that run
> longer than expected.  Example:
>
> in submit file:
> +MaxRunTime = 3600
>
> in config file:
> SYSTEM_PERIODIC_HOLD = JobStatus == 2 && MaxRunTime =!= UNDEFINED &&
> (RemoteWallClockTime - CumulativeSuspensionTime) > MaxRunTime
>
>
> The other thing I alluded to was a way to specify the amount of time a
> job should be allowed to run without interruption.  This doesn't  
> really
> apply to the parallel universe, because parallel universe jobs should
> always run without preemption.
>
> in submit file:
> # this should finish in less than one hour
> # if it does not, it is ok for it to be preempted
> MaxJobRetirementTime = 3600
>
> in execute machine config file:
> # allow up to 2 days max of uninterrupted time for jobs
> MaxJobRetirementTime = 3600*24*2
>
> I hope that helps you.
>
> --Dan
>
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==========================
Robert E. Parrott, Ph.D. (Phys. '06)
Associate Director, Grid and
        Supercomputing Platforms
Project Manager, CrimsonGrid Initiative
Harvard University Sch. of Eng. and App. Sci.
Maxwell-Dworkin  211,
33 Oxford St.
Cambridge, MA 02138
(617)-495-5045