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SpECTRE
v2025.08.19
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Given initial boundary data for \(J\) and \(\partial_r J\), computes the initial hypersurface quantities \(J\) and gauge values. More...
#include <InitializeFirstHypersurface.hpp>
Public Types | |
| using | const_global_cache_tags = tmpl::list< Tags::LMax, Tags::NumberOfRadialPoints > |
Static Public Member Functions | |
| template<typename DbTags , typename... InboxTags, typename Metavariables , typename ArrayIndex , typename ActionList , typename ParallelComponent > | |
| static Parallel::iterable_action_return_t | apply (db::DataBox< DbTags > &box, const tuples::TaggedTuple< InboxTags... > &, Parallel::GlobalCache< Metavariables > &cache, const ArrayIndex &, const ActionList, const ParallelComponent *const) |
Given initial boundary data for \(J\) and \(\partial_r J\), computes the initial hypersurface quantities \(J\) and gauge values.
This action is to be called after boundary data has been received, but before the time-stepping evolution loop. So, it should be either late in an initialization phase or early (before a Actions::Goto loop or similar) in the Evolve phase.
Internally, this dispatches to the call function of Tags::InitializeJ, which designates a hypersurface initial data generator chosen by input file options, InitializeGauge, and InitializeScriPlusValue<Tags::InertialRetardedTime> to perform the computations. Refer to the documentation for those mutators for mathematical details.