#1399: add evolution method "stationary" to ADMBase ------------------------------------+--------------------------------------- Reporter: rhaas | Owner: Type: enhancement | Status: review Priority: minor | Milestone: Component: EinsteinToolkit thorn | Version: development version Resolution: | Keywords: ADMBase ------------------------------------+---------------------------------------
Comment (by eschnett):
In this context, I do not understand why there should be a difference between "static" and "stationary", and why this difference should include re-applying initial conditions when the grid structure changes... If we do this, it should probably have a different name. Note that this is not restricted to stationary cases, since the initial condition may depend on cctk_time. In that case, one needs to apply the initial conditions at every time step, not only after grid structure changes.
Thorn Exact offer this feature already. It does so by defining an evolution method that re-applies the initial condition as necessary.
I suggest two new parameter settings, one for static and one for non- static situations, so that thorn Exact's setting of the evolution method is not necessary any more. These two settings could e.g. be called "reapply-initial-condition-after-grid-structure-changes" and "reapply- initial-condition-at-every-time-step", only much shorter.