>Use nodes=18 instead of ncpus.W/o ppn nodes=X means requesting X number of >CPU's >w/o any geametry specification
When I chnaged the nodes=X (X>2), I get an error that there are no such resources. Then I found a *magic* queue command in http://www.clusterresources.com/pipermail/torqueusers/2006-January/002869.html that did the job. Now when I request nodes=18, it allocates 16 cores from one station and 2 cores from the other station. That command is: qmgr -c "set server resources_available.nodect=32" where you can replace 32 with number of total cores you have in your cluster. Thanks, // Naderan *Mahmood; ________________________________ From: rishi pathak <[email protected]> To: Mahmood Naderan <[email protected]> Cc: [email protected] Sent: Mon, January 10, 2011 9:05:23 AM Subject: Re: [Mauiusers] requesting cores with ncpus Hi Mahmood, Use nodes=18 instead of ncpus.W/o ppn nodes=X means requesting X number of CPU's w/o any geametry specification On Sun, Jan 9, 2011 at 8:40 PM, Mahmood Naderan <[email protected]> wrote: Hi, >Recently I submitted a message to torque user group but found that my question >is actually related to maui. Here is the problem: >With two stations (server+worker) each has 16 cores, I want to submit a job but >don't want to explicitly mention on which station. >If I use "nodes=2:ppn=4", then 4 cores on each station is devoted. That is >fine... >If I use "ncpus=18", I expect that maui put 16 processes on one station and 2 on >the other automatically. However the actual result is that my job is deferred. >Total Tasks: 1 Req[0] TaskCount: 1 Partition: ALL Network: [NONE] Memory >= >0 Disk >= 0 Swap >= 0 Opsys: [NONE] Arch: [NONE] Features: [NONE] Dedicated >Resources Per Task: PROCS: 17 NodeCount: 1 IWD: [NONE] Executable: [NONE] >Bypass: 0 StartCount: 0 PartitionMask: [ALL] Flags: RESTARTABLE job is >deferred. Reason: NoResources (cannot create reservation for job '152' >(intital reservation attempt) ) Holds: Defer (hold reason: NoResources) PE: >17.00 StartPriority: 1 cannot select job 152 for partition DEFAULT (job hold >active) > > > >How can I fix that? >Thanks, >// Naderan *Mahmood; > > > >_______________________________________________ >mauiusers mailing list >[email protected] >http://www.supercluster.org/mailman/listinfo/mauiusers > -- Regards-- Rishi Pathak National PARAM Supercomputing Facility Center for Development of Advanced Computing(C-DAC) Pune University Campus,Ganesh Khind Road Pune-Maharastra
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