[ET Trac] [Einstein Toolkit] #1883: InterpToArray test failing after CarpetInterp2 vectorisation optimisation

[Einstein Toolkit]

#1883: InterpToArray test failing after CarpetInterp2 vectorisation optimisation
--------------------+-------------------------------------------------------
 Reporter:  hinder  |       Owner:  eschnett           
     Type:  defect  |      Status:  new                
 Priority:  major   |   Milestone:  ET_2016_05         
Component:  Carpet  |     Version:  development version
 Keywords:          |  
--------------------+-------------------------------------------------------
 With the merging of [[https://bitbucket.org/eschnett/carpet/pull-
 requests/12/carpetinterp2-vectorize-interpolation| carpetinterp2
 -vectorize-interpolation]], the test
 [[https://build.barrywardell.net/job/EinsteinToolkit/750/testReport/junit/(root)/InterpToArray/wavetoy2_2procs/|InterpToArray.wavetoy2/2procs]]
 is now failing with, for example,
 {{{
    arrays2d[0].x.asc: substantial differences
       significant differences on 3 (out of 3) lines
       maximum absolute difference in column 5 is 0.255929043803272
       maximum relative difference in column 5 is 0.659886735180889
 }}}
 This is on the build machine, which uses GCC.  I only tested the change on
 Intel.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1883>
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