Classes | Typedefs
elliptic::dg::Actions Namespace Reference

Actions related to elliptic discontinuous Galerkin schemes. More...

Classes

struct  ImposeInhomogeneousBoundaryConditionsOnSource
 For linear systems, impose inhomogeneous boundary conditions as contributions to the fixed sources (i.e. the RHS of the equations). More...
 
struct  InitializeDomain
 Initialize items related to the basic structure of the element. More...
 

Typedefs

template<typename System >
using initialize_operator = tmpl::list< detail::InitializeFacesAndMortars< System > >
 Initialize DataBox tags for applying the DG operator. More...
 
template<typename System , bool Linearized, typename TemporalIdTag , typename PrimalFieldsTag , typename PrimalFluxesTag , typename OperatorAppliedToFieldsTag , typename PrimalMortarFieldsTag = PrimalFieldsTag, typename PrimalMortarFluxesTag = PrimalFluxesTag>
using apply_operator = tmpl::list< detail::PrepareAndSendMortarData< System, Linearized, TemporalIdTag, PrimalFieldsTag, PrimalFluxesTag, OperatorAppliedToFieldsTag, PrimalMortarFieldsTag, PrimalMortarFluxesTag >, detail::ReceiveMortarDataAndApplyOperator< System, Linearized, TemporalIdTag, PrimalFieldsTag, PrimalFluxesTag, OperatorAppliedToFieldsTag, PrimalMortarFieldsTag, PrimalMortarFluxesTag > >
 Apply the DG operator to the PrimalFieldsTag and write the result to the OperatorAppliedToFieldsTag More...
 

Detailed Description

Actions related to elliptic discontinuous Galerkin schemes.

Typedef Documentation

◆ apply_operator

template<typename System , bool Linearized, typename TemporalIdTag , typename PrimalFieldsTag , typename PrimalFluxesTag , typename OperatorAppliedToFieldsTag , typename PrimalMortarFieldsTag = PrimalFieldsTag, typename PrimalMortarFluxesTag = PrimalFluxesTag>
using elliptic::dg::Actions::apply_operator = typedef tmpl::list<detail::PrepareAndSendMortarData< System, Linearized, TemporalIdTag, PrimalFieldsTag, PrimalFluxesTag, OperatorAppliedToFieldsTag, PrimalMortarFieldsTag, PrimalMortarFluxesTag>, detail::ReceiveMortarDataAndApplyOperator< System, Linearized, TemporalIdTag, PrimalFieldsTag, PrimalFluxesTag, OperatorAppliedToFieldsTag, PrimalMortarFieldsTag, PrimalMortarFluxesTag> >

Apply the DG operator to the PrimalFieldsTag and write the result to the OperatorAppliedToFieldsTag

Add this list to the action list of a parallel component to compute the elliptic DG operator or its linearization. The operator involves a communication between nearest-neighbor elements. See elliptic::dg for details on the elliptic DG operator. Make sure to add elliptic::dg::Actions::initialize_operator to the initialization phase of your parallel component so the required DataBox tags are set up before applying the operator.

The result of the computation is written to the OperatorAppliedToFieldsTag. Additionally, the primal fluxes are written to the PrimalFluxesTag as an intermediate result. The auxiliary fields and fluxes are discarded to avoid inflating the memory usage.

You can specify the PrimalMortarFieldsTag and the PrimalMortarFluxesTag to re-use mortar-data memory buffers from other operator applications, for example when applying the nonlinear and linearized operator. They default to the PrimalFieldsTag and the PrimalFluxesTag, meaning memory buffers corresponding to these tags are set up in the DataBox.

◆ initialize_operator

template<typename System >
using elliptic::dg::Actions::initialize_operator = typedef tmpl::list<detail::InitializeFacesAndMortars<System> >

Initialize DataBox tags for applying the DG operator.

See also
elliptic::dg::Actions::apply_operator