[ET Trac] [Einstein Toolkit] #1212: PUGH crashes if there are too few grid points to synchronize

[Einstein Toolkit]

#1212: PUGH crashes if there are too few grid points to synchronize
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 Reporter:  eschnett  |       Owner:     
     Type:  defect    |      Status:  new
 Priority:  major     |   Milestone:     
Component:  Cactus    |     Version:     
 Keywords:            |  
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 PUGH crashes when there are not enough grid points while synchronizing. It
 apparently assumes that each process has at least as many grid points as
 there are ghost zones. This is easily violated with small, distributed
 grid arrays. The test case CactusTest/TestArrays/test/arrays0.par shows
 this failure when run on 2 or 4 processes.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1212>
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