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

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.

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


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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