[ET Trac] [Einstein Toolkit] #499: Prolongation fails with vectorisation enabled

Einstein Toolkit trac-noreply at einsteintoolkit.org
Thu Aug 25 05:56:10 CDT 2011


#499: Prolongation fails with vectorisation enabled
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  Reporter:  hinder  |       Owner:  eschnett
      Type:  defect  |      Status:  new     
  Priority:  major   |   Milestone:          
 Component:  Carpet  |     Version:          
Resolution:          |    Keywords:          
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Comment (by barry.wardell):

 I have just tried running the same job on Kraken and it works perfectly
 fine, without any segfault. I'm using the current SimFactory2 optionlists
 kraken-intel.cfg and datura.cfg. This means that on Kraken I'm using a
 slightly different version of the Intel compiler (11.1.038 vs 11.1.072)
 and some different optimisation settings (in particular SSE2 instead of
 SSE4.1). Note, however, that when I run the job on Damiana (damiana.cfg),
 which uses SSE2 but is otherwise identical to Datura, I get the same
 segfault.

 Replying to [comment:8 eschnett]:
 > Other random ideas coming to my mind:
 > - running without OpenMP (with a single thread)
 > - building with gcc (and with optimisation) instead of Intel, still on
 Datura

 I will try these suggestions.

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/499#comment:9>
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