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Status Delivered
Workspace Spectrum LSF
Created by Guest
Created on Dec 17, 2014

chunking: runtime limit (-W bsub option) & estimated runtime (-We) conflict

when a runtime limit and an estimated runtime are set for a job, only the highest value is considered for chunking.

if you want to submit short jobs in chunk and you want to set a runtime limit to kill these jobs when they don't end and this runtime limit is higher than the CHUNK_JOB_DURATION parameter, the jobs will never be "chunked".

is it possible to have a queue level parameter to select which parameter to take in account for chunking: CPU time limit, run time limit or run time estimate ?

another way is to have a dedicated bsub option to force job in chunk mode.

  • Guest
    Apr 4, 2016

    This RFE was delivered with the LSF 9.1.3.3 Fix Pack.

    Fix Central URL:
    http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=Platform%2BComputing&product=ibm/Other+software/Platform+LSF&release=All&platform=All&function=fixId&fixids=lsf-9.1.3.3-spk-2015-Jun-build346694&includeSupersedes=0

    Fix ID: lsf-9.1.3.3-spk-2015-Jun-build346694

  • Guest
    Jan 22, 2015

    Olivier,
    While the behaviour is consistent with documentation, I agree that it doesn't really make sense. It would be more sensible to use the -We value (if specified) for deciding whether it should be chunked or not.

    We'll look at addressing this as a patch.

    Bill McMillan, Global Product Portfolio Manager for the IBM Platform LSF Family

  • Guest
    Dec 18, 2014

    Creating a new RFE based on Community RFE #63559 in product Platform LSF.