[Users] EinsteinBase/TmunuBase: request to make parameters restricted

[Frank Loeffler]

On Thu, Jun 09, 2011 at 09:56:32AM -0400, Roland Haas wrote:
> Can be done yes. There is already a grid scalar
> TmunuBase::stress_energy_state which is set to non-zero if
> stress_energy_storage is true (in BaseGrid by
> TmunuBase_SetStressEnergyState).
> 
> You should already have access to it through Whisky inheriting from
> TmunuBase.
> 
> For the Cactus experts: what is the current preferred Cactus way of
> handling this? Parameter or grid scalar?

Roland is right: it would be best to use TmunuBase::stress_energy_state
and not the parameter. This is a situation similar to, e.g.,
shift_state.

The main argument is that TmunuBase::stress_energy_state might change
during the evolution, but the corresponding parameter might be set in a
restart parameter file which would lead to problems while restarting.

Bruno: would using TmunuBase::stress_energy_state work for you as well?

Frank

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