Roland,
EinsteinExact does contain both Gauge Wave shifted gauge wave initial
data. They're provided as additional thorns. Here's the relevant part of
my thorn list:
!TARGET = $ARR
!TYPE = git
!URL = https://github.com/barrywardell/EinsteinExact.git
!REPO_PATH= $2
!CHECKOUT = EinsteinExact/doc EinsteinExact/m EinsteinExact/tests
EinsteinExact/EinsteinExact_Test
EinsteinExact/GaugeWave
EinsteinExact/KerrSchild
EinsteinExact/Minkowski
EinsteinExact/ModifiedSchwarzschildBL
EinsteinExact/ShiftedGaugeWave
EinsteinExact/Vaidya2
Here's the parameter file I used to run it (in compliance with apples
with apples) for my DG paper (arXiv:1604.00075):
https://bitbucket.org/Yurlungur/oldg-supplemental/src/12834adfa6ce4b0660ca98f242f112f320e3582c/par/gauge_wave.rpar?at=master&fileviewer=file-view-default
I was using my implementation Mclachlan, but you should be able to adapt
the relevant parameters.
Best,
Jonah
On 17-07-20 02:13 PM, Roland Haas wrote:
Hello all,
I am trying to set up the gauge wave test from the apples with apples
paper https://arxiv.org/abs/0709.3559 "Appendix A.3. Gauge wave
testbed". While these are simple enough the coding up the ADM variables is not
a big deal, I would still ideally avoid this potential source of error and use a
code that is already in the ET or Cactus.
Does anyone know if such a thorn exists in the ET (and would point me
to it)? EinsteinExact does not seem to contain such a module (but only
the shifted gauge test).
Yours,
Roland
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