[ET Trac] [Einstein Toolkit] #1850: Severe performance problem on Stampede

Einstein Toolkit trac-noreply at einsteintoolkit.org
Mon Mar 21 15:36:56 CDT 2016

#1850: Severe performance problem on Stampede
  Reporter:  hinder      |       Owner:                     
      Type:  defect      |      Status:  review             
  Priority:  major       |   Milestone:                     
 Component:  SimFactory  |     Version:  development version
Resolution:              |    Keywords:                     

Comment (by eschnett):

 It seems the correct solution is to use either {{{tacc_affinity}}} or
 {{{numactl}}} in the run script, and to NOT set {{{KMP_AFFINITY}}}.
 Alternatively, letting Slurm define the affinity and doing nothing else
 should also work, if Slurm is set up correctly, which it likely is.

Ticket URL: <https://trac.einsteintoolkit.org/ticket/1850#comment:33>
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