[Mauiusers] job submitted to multiple nodes is blocked
rjacobi at email.arizona.edu
Wed Mar 30 12:01:35 MDT 2011
That was exactly the issue.
Upon looking for it in the Maui Admin Guide, I noticed that the
ENABLEMULTIREQJOBS parameter is documented in the html
but not in the PDF version
Peter Crosta wrote:
> Hi Robert,
> Do you have the following line in your maui config?
> ENABLEMULTIREQJOBS TRUE
> I believe it is require to request multiple resources.
> -----Original Message-----
> From: mauiusers-bounces at supercluster.org
> [mailto:mauiusers-bounces at supercluster.org] On Behalf Of Robert Jacobi
> Sent: Tuesday, March 29, 2011 9:30 PM
> To: mauiusers at supercluster.org
> Subject: [Mauiusers] job submitted to multiple nodes is blocked
> We're running Maui with Torque on our cluster (10 nodes, 8 cores each).
> When I submit a job on multiple nodes specifying them in a certain why my
> job gets blocked by Maui, otherwise it runs just fine.
> Here's the line I usually use in submission script to submit jobs to
> mutliple nodes (say if I need 16 cores): "#PBS -l nodes=2:ppn=8". That works
> just fine.
> But when I don't need a multiple of 8 processors and don't want to block
> processors unnecessarily, I tried the following (say to get 20 cores):
> "#PBS -l nodes=2:ppn=8+1:ppn=4"
> According to the Torque user manual that should get me 16 cores on 2 nodes
> and 4 cores on the third. I can submit it without a problem, but then it is
> blocked by Maui.
> For testing I also tried "#PBS -l nodes=1:ppn=1+1:ppn=1" and "#PBS -l
> nodes=1:ppn=8+1:ppn=8", which are blocked as well
> Output from showq for the blocked job:
> BLOCKED JOBS----------------
> JOBNAME USERNAME STATE PROC WCLIMIT
> 1272 robert BatchHold 1 00:00:30 Tue Mar 29
> The relevant policies (as far as I know), which are set in maui.cfg, are:
> NODEACCESSPOLICY SHARED
> JOBNODEMATCHPOLICY EXACTNODE
> Please, can anybody point me to where the problem might be? If there are
> queue specific settings that could cause this, I'd be more than happy to
> provide more information.
> PS: I am aware that I could just reserve multiple of 8 processors and let
> some of them sit idle, but on our relatively small cluster that amounts to s
> significant waste of resources.
> Robert Jacobi
> Research Assistant
> University of Arizona
> Department of Aerospace & Mechanical Engineering
> 1130 N. Mountain Ave.
> Tucson, AZ, 85721-0119
> tel: +1 (520) 621 4369
> mail: rjacobi at email.arizona.edu
> The less time you spent on algebra in life, the more time you have to be a
> happy person. (Kerschen)
> Doubt is not a pleasant condition, but certainty is absurd. (Voltaire)
> All great truths begin as blasphemies. (Shaw)
> Denken ist etwas, das auf Schwierigkeiten folgt und dem das Handeln
> mauiusers mailing list
> mauiusers at supercluster.org
University of Arizona
Department of Aerospace & Mechanical Engineering
1130 N. Mountain Ave.
Tucson, AZ, 85721-0119
tel: +1 (520) 621 4369
mail: rjacobi at email.arizona.edu
The less time you spent on algebra in life, the more time you have to be a happy person. (Kerschen)
Doubt is not a pleasant condition, but certainty is absurd. (Voltaire)
All great truths begin as blasphemies. (Shaw)
Denken ist etwas, das auf Schwierigkeiten folgt und dem das Handeln vorausgeht.(Brecht)
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