[ET Trac] #2929: GRHayLET/IllinoisGRMHD convert_IllinoisGRMHD_to_HydroBase schedule compatibility with VolumeIntegrals_*

[Leonardo Rosa Werneck]

#2929: GRHayLET/IllinoisGRMHD convert_IllinoisGRMHD_to_HydroBase schedule compatibility with VolumeIntegrals_*

 Reporter: Maxwell Rizzo
   Status: new
Milestone: ET_2026_05
  Version: ET_2025_05
     Type: bug
 Priority: major
Component: EinsteinToolkit thorn

Comment (by Leonardo Rosa Werneck):

In this case, the issue is not with `VolumeIntegrals`, but with `IllinoisGRMHD`. `VolumeIntegrals` expects `HydroBase` variables, and when using `IllinoisGRMHD`, those variables are only set correctly if one explicitly calls the routine that converts from `IllinoisGRMHD`'s native variables to `HydroBase`.

This is therefore not a diagnostic issue, but rather a consequence of `IllinoisGRMHD`'s choice of gridfunctions. For that reason, I think it is reasonable to expect `IllinoisGRMHD` to handle this conversion, rather than placing that responsibility on the diagnostic thorn.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2929/grhaylet-illinoisgrmhd
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