[ET Trac] [Einstein Toolkit] #1453: Carpet: skip CheckFence routine if CarpetLib::electric_fence is false

[Einstein Toolkit]

#1453: Carpet: skip CheckFence routine if CarpetLib::electric_fence is false
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 Reporter:  rhaas   |       Owner:  eschnett           
     Type:  defect  |      Status:  new                
 Priority:  minor   |   Milestone:                     
Component:  Carpet  |     Version:  development version
 Keywords:          |  
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 the attached patch makes Carpet check CarpetLib::electric_fence before
 checking for out-of-bound access.

 Just enumerating all variables is apparently already expensive enough to
 show up in the Timer report.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1453>
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