How to prevent splitting of assigned cores on multiple nodes

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  Hi Sven,
  
  Can you try the following methods:
  
  1) Assume you want to use node1, it has 8 cores. your job requires N <= 8 cores, then
       job submit /askednodes:node1 /numprocessors:N <test>   
     where N <= 8
  
  2) If you need more than 8 cores, e.g. 15 cores, then do
      job submit /askednodes:node1,node2 /numprocessors:15 <test>
  
  liwei

  Tuesday, February 9, 2010 6:57 PM
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  Hi,

   

  I know, I can request a specific node. But normally, the users do not want to take care, which node to use. Especially, if all nodes are busy and he do not know which is ready first. So my question is, is their somewhere an option flag? And if not, is it planed in one of the next versions?

  Regards,

  Sven

  • Proposed as answer by Colin WatsonModerator Wednesday, February 10, 2010 8:41 PM
  • Unproposed as answer by Colin WatsonModerator Wednesday, February 10, 2010 8:41 PM

  Wednesday, February 10, 2010 2:27 PM
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  Hi Sven,
  
  /corespernode and possibly /memorypernode might be of interest to you.
  
  The following runs your program on any node with at least 4 cores.
  
  job submit /numnodes:1 /corespernode:4 <test>
  
  Regards,
  Colin

  ---

  -Colin, Microsoft HPC

  • Proposed as answer by Colin WatsonModerator Wednesday, February 10, 2010 8:45 PM
  • Marked as answer by Don PatteeModerator Friday, February 19, 2010 1:17 AM

  Wednesday, February 10, 2010 8:45 PM

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  HI,
  
  Thanks, this is the options I was looking for.
  
  Regrads,
  Sven

  Thursday, February 11, 2010 7:46 AM