[ET Trac] [Einstein Toolkit] #617: Norm of NxNx1 grid gives poison in new version of Carpet

[Einstein Toolkit]

#617: Norm of NxNx1 grid gives poison in new version of Carpet
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 Reporter:  hinder      |       Owner:  eschnett
     Type:  defect      |      Status:  new     
 Priority:  minor       |   Milestone:          
Component:  Carpet      |     Version:          
 Keywords:  regression  |  
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 I am having a problem with a 2D Carpet unigrid simulation with NxNx1 grid
 points in each direction.  I have 0 boundary points and 0 ghost points in
 the z direction.  The norm2 and other norms computed by CarpetIOBasic and
 CarpetIOScalar are showing poison.  The same happens if I use one boundary
 point and one ghost point.  The important feature is that zmin = zmax.  If
 I make zmax = zmin + dz, then the norms are fine.  This works fine in the
 git version of Carpet - it seems to be a regression in the Mercurial
 version.

 Parameter file is attached.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/617>
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