[Users] Patch: add hydro variables support for the CactusNumerical/Noise thorn

David Radice david.radice at aei.mpg.de
Tue Jul 6 03:29:24 CDT 2010

Dear all,

in order to use the CactusNumerical/Noise thorn to perform a stress test
on the hydro equations "id_noise" has to be properly scheduled with
respect to HydroBase_Initial and HydroBase_Prim2ConInitial. As it is now
numerical perturbation on the hydro variables could be discarded /

The attached (trivial) patch fixes the above mentioned issue and
includes some small aesthetic fixes. Could you please consider applying
it to the development branch of the Einstein Toolkit?


PS: note that the hydro thorn has to schedule Prim2Con in
HydroBase_Prim2ConInitial otherwise the perturbation are simply

David Radice
Max Planck Institute for Gravitational Physics
Albert Einstein Institute
Am Muehlenberg 1
D-14476 Potsdam

Tel    : +49 331 567 7242
Fax    : +49 331 567 7499
Room   : 1.64
E-Mail : david.radice at aei.mpg.de
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