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Status Not under consideration
Workspace Spectrum LSF
Created by Guest
Created on May 18, 2017

RELATED IDEAS

job dependency on requeable job.

Hi, We are working on a workflow enhancement but are facing a potential issue with how LSF handles job dependencies of requeable jobs. Here is the scenario: - there is JOBARRAY[1-10] - there is "sync" job (single) which is dependent on ended(JOBARRAY) All JOBARRAY is requeable. If any index fails due to TERM_MEMLIMIT, we want the post-exec to requeue the job with higher memory request. The post-exec would do 3 simple things: brequeue -H , bmod - R "rusage[mem=xxxx]" , bresume The main goal here is to requeue jobs that fail due to TERM_MEMLIMIT with a higher memory request. The issue we suspect is if let's say JOBARRAY[1-9] all completed DONE, but only element JOBARRAY[10] is running. Then JOBARRAY[10] fails due to memory limit, then the "sync" job spawns off because dependency condition ended() is fulfilled, but really we want it to wait because JOBARRAY[10] will still requeue itself from post-exec. How are some ways to get around this? The other request I have within this is what is the simplest way to requeue a TERM_MEMLIMIT job. Right now I am having to do brequeue -H into PSUSP state because I don't want that job to dispatch again with same memory request, then do bmod, then do bresume to move it from PSUSP to PEND. Is there an easy way to do brequeue and increase memory request in one command?

  • Guest
    Reply
    |     Apr 5, 2018

    From previous discussions with the workflow owners, it appears they had found a suitable workaround solution.

    This RFE is not required for us any longer.

  • Guest
    Reply
    |     Apr 4, 2018

    No response from submitter, closing.

  • Guest
    Reply
    |     May 31, 2017

    Do you really mean ended()?
    With ended(), the dependent job will run if the previous jobs succeed or fail.
    If you want the sync job to wait for all the predecessors to complete successfully, then done() would be more appropriate.

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