Re: [Condor-users] Running long jobs

[Daniel R Figueiredo <daniel.figueiredo@xxxxxxx>]

On Wed, 30 Nov 2005, Erik Paulson wrote:

> On Wed, Nov 30, 2005 at 07:28:40PM +0100, Daniel R Figueiredo wrote:
> > Hello,
> >
> > Thanks for your reply. Unfortunately, I am a user of a Condor cluster (and
> > not the administrator). From what I understood, the condor config file you
> > sent below is meant to configurate the behavior of the entire cluster.
> > Although I could request the system administrator to alter the
> > configuration, I still wonder if a user can do something about this
> > problem. Can a user request its job to be suspended instead of terminated?
> > Any thoughts are welcome.
>
> No, they can't. The administrator has to configure Condor to do this.
> Even suspended, the job uses some resources on the execute machine (if
> nothing else, the disk space used to transfer it there) so the blessing
> must come from the administrator.
>
> In our department, we set up special VMs that suspend the running job
> when a job starts running on another VM on the system. You need to use
> the 6.7 series to enable it, but the details are in the 'Condor and
> The Bolonga Batch System':
>
> http://www.cs.wisc.edu/condor/technical.html

Hi,

Thanks for your message. It's now clear that I'll need support from the 
Condor administrator. However, I looked through the report "Condor and The 
Bolonga Batch System" as you suggested, but it was not clear how to 
configurate Condor to run long jobs with preemption implemented via 
suspension (as opposed to preemption via termination). In particular, I 
would like to know what is the minimal set of configuration fields that 
must be changed in order to achieve this? Recall that I would like for 
long jobs to be preempted via suspension (as opposed to terminated through 
a signal) and later resume from where they stopped (as opposed to 
restarting from the beginning). Any ideas on how to this? I could then 
suggest something concrete to our local Condor administrator.

Thanks,
Daniel