Allocate or assign background general relativity quantities needed for evolution systems run on a curved spacetime without solving Einstein equations (e.g. ValenciaDivclean, ForceFree).
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template<typename System, typename Metavariables>
struct evolution::dg::BackgroundGrVars< System, Metavariables >
Allocate or assign background general relativity quantities needed for evolution systems run on a curved spacetime without solving Einstein equations (e.g. ValenciaDivclean, ForceFree).
- Warning
- This mutator assumes that the GR analytic data or solution specifying background spacetime metric is time-independent.