[ET Trac] [Einstein Toolkit] #1865: Automatically start SystemTopology

[Einstein Toolkit]

#1865: Automatically start SystemTopology
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  Reporter:  dradice@…            |       Owner:  eschnett           
      Type:  enhancement          |      Status:  reopened           
  Priority:  major                |   Milestone:                     
 Component:  Carpet               |     Version:  development version
Resolution:                       |    Keywords:                     
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Comment (by eschnett):

 SystemTopology can check, but that's dangerous. What if it decides that
 you're not running on a "full node" simply because it counts cores
 differently from what the user expects? If you read the documentation for
 Blue Waters, you'll see that not even NCSA could agree with itself on how
 many cores a node has. (Slurm, MPI, and the accounting system use
 different core counts.) What if you run in a virtual machine or a Docker
 environment? What if you run on a workstation, and by chance are using all
 cores, while there is also a second Cactus job running?

 In my view, the default behaviour should do the right thing for the
 unsuspecting user. Experts can be expected to put in a bit more effort,
 e.g. changing a line in the scripts they use to submit jobs.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1865#comment:12>
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