[ET Trac] [Einstein Toolkit] #966: Carpet always calls POSTREGIRD on the finest level

[Einstein Toolkit]

#966: Carpet always calls POSTREGIRD on the finest level
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  Reporter:  rhaas        |       Owner:  eschnett
      Type:  enhancement  |      Status:  new     
  Priority:  minor        |   Milestone:          
 Component:  Carpet       |     Version:          
Resolution:               |    Keywords:          
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Comment (by eschnett):

 It is difficult to judge whether the finest level "changed". For example,
 if a coarser level changed, then the finest level's prolongation data may
 change. Internally, Carpet assumes that a regridding operation always
 changes "level N and all finer levels".

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/966#comment:1>
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