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Re: [Condor-users] slight bug in dynamic slots



I can. It is a workaround that has broader, unnecessary, implications.

Please open a ticket at http://condor-wiki.cs.wisc.edu for the dynamic slot issue and we'll take a look.

Best,


matt

On 05/16/2011 11:14 AM, Matt Hope wrote:
That does suggest that the system should default CLAIM_WORKLIFE to zero for dynamic slots... can anyone think of a reason *not* to always do that?

-----Original Message-----
From: condor-users-bounces@xxxxxxxxxxx [mailto:condor-users-bounces@xxxxxxxxxxx] On Behalf Of Lukas Slebodnik
Sent: 16 May 2011 15:49
To: Condor-Users Mail List
Subject: Re: [Condor-users] slight bug in dynamic slots

Hi Erik,

You can change tihs behaviour by setting variable CLAIM_WORKLIFE.
http://www.cs.wisc.edu/condor/manual/v7.4/3_3Configuration.html#16308

This variable specifies the number of seconds after which a claim will stop
accepting additional jobs.

Regards,
Lukas

On Mon, May 16, 2011 at 10:35:40AM -0400, Erik Aronesty wrote:
When a job on a dynamic slot (slot1.1 for example) completes, the
dynamic slot is marked as "available/unclaimed" for a brief window of
time before it is reaped and the resources it consumes are made
available to the primary slot (slot1).

During that time a job can be scheduled on it.... a job with far less
RAM or #CPUS than the slot has reserved.

This results in a large inefficiency in job allocation when the queue
is very busy, and there are lots of mixed jobs... some reserving high
numbers of cpus and  others reserving few.

- ERik
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