evolution::dg::subcell::Tags::CellCenteredFlux< TagsList, Dim, Fr > Struct Template Reference

Holds the cell-centered fluxes on the subcell mesh. More...

#include <CellCenteredFlux.hpp>

Public Types
using	type

Detailed Description

template<typename TagsList, size_t Dim, typename Fr = Frame::Inertial>
struct evolution::dg::subcell::Tags::CellCenteredFlux< TagsList, Dim, Fr >

Holds the cell-centered fluxes on the subcell mesh.

These are only needed when using high-order FD methods and when we are actively doing FD. If either of these conditions isn't met, the value is std::nullopt.

The cell-centered fluxes are stored in the DataBox so they can be computed and sent to neighbor elements without having to be recomputed after receiving neighbor data. This means we maintain a single-send algorithm despite going to high-order, with no additional FLOP overhead. We do, however, have the memory overhead of the cell-centered fluxes.

Note

The TagsList is a list of the variables, not the fluxes. They are wrapped in the Tags::Flux prefix.

Member Typedef Documentation

type

template<typename TagsList, size_t Dim, typename Fr = Frame::Inertial>

using evolution::dg::subcell::Tags::CellCenteredFlux< TagsList, Dim, Fr >::type

Initial value:

 std::optional<Variables<
      db::wrap_tags_in<::Tags::Flux, TagsList, tmpl::size_t<Dim>, Fr>>>

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

• src/Evolution/DgSubcell/Tags/CellCenteredFlux.hpp