[ET Trac] [Einstein Toolkit] #878: Tests using Exact should use EinsteinExact

[Einstein Toolkit]

#878: Tests using Exact should use EinsteinExact
------------------------------------+---------------------------------------
  Reporter:  hinder                 |       Owner:            
      Type:  enhancement            |      Status:  new       
  Priority:  major                  |   Milestone:  ET_2012_11
 Component:  EinsteinToolkit thorn  |     Version:            
Resolution:                         |    Keywords:            
------------------------------------+---------------------------------------

Comment (by barry.wardell):

 Below is a list of the tests which currently use Exact:


 RotatingSymmetry180/Kerr-rotating-180-staggered
 RotatingSymmetry180/Kerr-rotating-180
 RotatingSymmetry180/Kerr-staggered
 RotatingSymmetry180/Kerr
 RotatingSymmetry180/KerrSchild-rotating-180
 RotatingSymmetry90/Kerr-rotating-90-staggered
 RotatingSymmetry90/Kerr-rotating-90
 RotatingSymmetry90/KerrSchild-rotating-90
 AHFinderDirect/checkpointML
 AHFinderDirect/Kerr-Cartoon
 AHFinderDirect/Kerr-definition-expansion-product
 AHFinderDirect/Kerr-definition-expansion
 AHFinderDirect/Kerr-definition-inner-expansion
 AHFinderDirect/Kerr-definition-mean-curvature
 AHFinderDirect/Kerr-modification-radius
 AHFinderDirect/Kerr-rotating-180
 AHFinderDirect/Kerr-rotating-90
 AHFinderDirect/Kerr-selection-areal-radius-definition-expansion-product
 AHFinderDirect/Kerr-selection-areal-radius
 AHFinderDirect/Kerr-selection-mean-coordinate-radius
 AHFinderDirect/Kerr
 AHFinderDirect/recover
 AHFinderDirect/recoverML
 QuasiLocalMeasures/qlm-bl
 QuasiLocalMeasures/qlm-ks-boosted
 QuasiLocalMeasures/qlm-ks-shifted
 QuasiLocalMeasures/qlm-ks-tilted
 QuasiLocalMeasures/qlm-ks
 McLachlan/ML_BSSN_Test/ML_BSSN_NewRad
 McLachlan/ML_BSSN_Test/ML_BSSN_O8_sgw3d
 McLachlan/ML_BSSN_Test/ML_BSSN_sgw3d
 McLachlan/ML_BSSN_Test/ML_BSSN_sgw3d_harmonic
 McLachlan/ML_BSSN_Test/ML_BSSN_sgw3d_rhs
 McLachlan/ML_CCZ4_Test/ML_CCZ4_sgw3d
 McLachlan/ML_CCZ4_Test/ML_CCZ4_sgw3d_rhs

 For each of these, we can create a new test which uses EinsteinExact
 instead. If we want to be extra careful, we can check that the Exact
 version converges to the EinsteinExact version at the appropriate order.
 Is that necessary? I have already checked that the Kerr-Schild and
 ShiftedGaugeWave solutions (used by most tests) in Exact converge to
 EinsteinExact (see the EinsteinExact/tests directory).

 Of these tests, the only one which uses a spacetime which is not currently
 provided by EinsteinExact is QuasiLocalMeasures/qlm-bl, which uses the
 Schwarzschild metric in Brill-Lindquist coordinates. We have almost the
 same thing in EinsteinExact/ModifiedSchwarzschildBL, except for the fact
 that the mass has a radial dependence inside the horizon. In principal, is
 it the case that this shouldn't matter if QuasiLocalMeasures is only
 looking on a surface at/outside the horizon? Is it likely to be the case
 in reality?

 In terms of missing parameters, the only one I can see is support for a
 boost. This is something which would be nice to have in EinsteinExact
 anyway, so we should add it.

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/878#comment:2>
Einstein Toolkit <http://einsteintoolkit.org>
The Einstein Toolkit