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Re: [condor-users] Questions about resource allocation and user priorites...
- Date: Wed, 18 Feb 2004 08:45:26 -0600
- From: Dan Bradley <dan@xxxxxxxxxxxx>
- Subject: Re: [condor-users] Questions about resource allocation and user priorites...
Michael S. Root wrote:
The thing is, the individual jobs that make up each dag usually only take
between 1 and 20 minutes each, but there can be several hundred jobs per
dag. Why don't the second user's jobs acquire resources as the first
user's dag's individual "sub-jobs" finish, which they do fairly often?
Currently, there is no way to tell Condor you want preemption of
resource claims to be considered between job boundaries. However, you
_can_ set PREEMPTION_REQUIREMENTS to allow preemption during the first
few minutes of a job's life, instead of the default expression which is
to allow preemption after the claim has existed for one hour:
(MY.JobStart =?= UNDEFINED) || \
(MY.LastHeardFrom - MY.JobStart) < 10 * 60) || \
(MY.LastHeardFrom - MY.JobStart) > 48 * 60 * 60
The above expression will allow preemption during the first 10 minutes
of a job or after an unreasonably long amount of time (in this case 48
We are currently working on a feature that would accomplish this more
gracefully without interrupting jobs shortly after they have begun.
Dan Bradley, Condor Team
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