[Beowulf] SGE + policy

[Robert G. Brown]

On Thu, 27 May 2004, Orion Poplawski wrote:

> You can also setup subordinate queues where the queue with priority will 
> only accept jobs that will take less than a given time to run.  When a 
> short job gets submitted, a long job on the subordinate queue will be 
> stopped (SIGSTOP) while the short jobs runs.  Your problem here is that 
> the long job will presumably still hold a license.  If matlab has some 
> kind of checkpointing function, you could tie that into SGE to release 
> the license.

So it WILL manage things with SIGSTOP/SIGCONT.  Good, that's what I was
hoping.  I'll search the docs etc for "subordinate queues" and signals
to see if I can figure out how.

Excellent.

> You can also limit the number of available slots for long running jobs.
> 
> SGE can tie into license management through resource monitors to 
> determine the number of licenses available.

Also excellent.

As you note, we'll probably have to screw around with the matlab license
manager and issue, but that's a problem with definite bounds and there
are a number of ways to try to solve it if we can't find a solution
already out there.

   rgb

> 
> 

-- 
Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu