[gridengine users] mem_free settings

Reuti reuti at staff.uni-marburg.de
Tue Mar 31 12:27:58 UTC 2015


> Am 31.03.2015 um 14:17 schrieb Gowtham <g at mtu.edu>:
> 
> 
> Please find it here:
> 
>  http://sgowtham.com/downloads/qstat_j_74545.txt

Ok, but where is the SGE looking for 256GB? For now each slot will get 128G as requested

-- Reuti


> 
> Best regards,
> g
> 
> --
> Gowtham, PhD
> Director of Research Computing, IT
> Adj. Asst. Professor, Physics/ECE
> Michigan Technological University
> 
> (906) 487/3593
> http://it.mtu.edu
> http://hpc.mtu.edu
> 
> 
> On Tue, 31 Mar 2015, Reuti wrote:
> 
> | Hi,
> | 
> | > Am 31.03.2015 um 13:13 schrieb Gowtham <g at mtu.edu>:
> | > 
> | > 
> | > In one of our clusters that has homogeneous compute nodes (64 GB RAM), I have set mem_free as a requestable and consumable resource. From the mailing list archives, I have done
> | > 
> | >  for x in `qconf -sel`
> | >  do
> | >    qconf -mattr exechost complex_values mem_free=60G $x
> | >  done
> | > 
> | > Every job that gets submitted by every user has the following line in the submission script:
> | > 
> | >  #$ -hard -l mem_free=2G
> | > 
> | > for single processor jobs, and
> | > 
> | >  #$ -hard -l mem_free=(2/NPROCS)G
> | > 
> | > for a parallel job using NPROCS processors.
> | > 
> | > 
> | > All single processor jobs run just fine, and so do many parallel jobs. But some parallel jobs, when the participating processors are spread across multiple compute nodes, keep on waiting.
> | > 
> | > When inspected with 'qstat -j JOB_ID', I notice that the job is looking for (2 * NPROCS)G of RAM in each compute node. How would I go about resolving this issue? If additional information is necessary from my end, please let me know.
> | 
> | Can you please post the output of `qstat -j JOB_ID` of such a job.
> | 
> | -- Reuti
> | 
> | 
> | > 
> | > Thank you for your time and help.
> | > 
> | > Best regards,
> | > g
> | > 
> | > --
> | > Gowtham, PhD
> | > Director of Research Computing, IT
> | > Adj. Asst. Professor, Physics/ECE
> | > Michigan Technological University
> | > 
> | > (906) 487/3593
> | > http://it.mtu.edu
> | > http://hpc.mtu.edu
> | > 
> | > _______________________________________________
> | > users mailing list
> | > users at gridengine.org
> | > https://gridengine.org/mailman/listinfo/users
> | 
> | 





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