[ET Trac] [Einstein Toolkit] #1075: Test cases with specific number of processes

[Einstein Toolkit]

#1075: Test cases with specific number of processes
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  Reporter:  eschnett     |       Owner:     
      Type:  enhancement  |      Status:  new
  Priority:  major        |   Milestone:     
 Component:  Cactus       |     Version:     
Resolution:               |    Keywords:     
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Comment (by hinder):

 Will mpirun choke on a request for more?  That must be system-dependent.
 If I run on my laptop, I can ask mpirun for as many processes as I like.
 I think Erik calls this "oversubscribing".  I don't think that running a
 test case on 2 processes rather than 1 is going to "bring a machine down".
 The performance will of course be lower, but these are not benchmarks.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1075#comment:4>
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