What this MR does / why does DuMux need it:
This MR adds a class for creating a parameter tree needed for the dune istl solvers and preconditioners.
At can be used by the
IstlSolverFactoryBackend and by a
The corresponding code in
IstlSolverFactoryBackend is removed.
Do we want
LinearSolverTraits as template parameter?
So far it is only used to extract
dim for AMG.
The traits are currently not passed to the
I did not notice any difference between setting setDefaultValuesIsotropic(dim)
and not setting anything.