SpECTRE  v2021.12.06
elliptic::Actions::InitializeBackgroundFields< System, BackgroundTag > Struct Template Reference

Initialize the variable-independent background fields for an elliptic solve. More...

#include <InitializeBackgroundFields.hpp>

Public Types

using simple_tags = tmpl::list< background_fields_tag >
 
using compute_tags = tmpl::list<>
 

Static Public Member Functions

template<typename DbTags , typename... InboxTags, typename Metavariables , size_t Dim, typename ActionList , typename ParallelComponent >
static std::tuple< db::DataBox< DbTags > && > apply (db::DataBox< DbTags > &box, const tuples::TaggedTuple< InboxTags... > &, const Parallel::GlobalCache< Metavariables > &, const ElementId< Dim > &, const ActionList, const ParallelComponent *const)
 

Detailed Description

template<typename System, typename BackgroundTag>
struct elliptic::Actions::InitializeBackgroundFields< System, BackgroundTag >

Initialize the variable-independent background fields for an elliptic solve.

Examples for background fields would be a background metric, associated curvature quantities, or matter sources such as a mass-density in the XCTS equations.

This action retrieves the System::background_fields from the BackgroundTag. It invokes the variables function with the inertial coordinates, the element's Mesh and the element's inverse Jacobian. These arguments allow computing numeric derivatives, if necessary.

Uses:

DataBox:


The documentation for this struct was generated from the following file: