SpECTRE Documentation Coverage Report
Current view: top level - Evolution/Executables/GrMhd/ValenciaDivClean - EvolveValenciaDivClean.hpp Hit Total Coverage
Commit: ecb8a275e1aebab77dcce48a5e098ed4e486ab4b Lines: 0 75 0.0 %
Date: 2026-08-22 01:05:40
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          Line data    Source code
       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <cstdint>
       7             : #include <vector>
       8             : 
       9             : #include "Domain/Creators/Factory3D.hpp"
      10             : #include "Domain/Tags.hpp"
      11             : #include "Evolution/Actions/RunEventsAndDenseTriggers.hpp"
      12             : #include "Evolution/Actions/RunEventsAndTriggers.hpp"
      13             : #include "Evolution/BoundaryCorrection.hpp"
      14             : #include "Evolution/ComputeTags.hpp"
      15             : #include "Evolution/Conservative/UpdateConservatives.hpp"
      16             : #include "Evolution/Conservative/UpdatePrimitives.hpp"
      17             : #include "Evolution/DgSubcell/Actions/Initialize.hpp"
      18             : #include "Evolution/DgSubcell/Actions/Labels.hpp"
      19             : #include "Evolution/DgSubcell/Actions/ReconstructionCommunication.hpp"
      20             : #include "Evolution/DgSubcell/Actions/SelectNumericalMethod.hpp"
      21             : #include "Evolution/DgSubcell/Actions/TakeTimeStep.hpp"
      22             : #include "Evolution/DgSubcell/Actions/TciAndRollback.hpp"
      23             : #include "Evolution/DgSubcell/Actions/TciAndSwitchToDg.hpp"
      24             : #include "Evolution/DgSubcell/BackgroundGrVars.hpp"
      25             : #include "Evolution/DgSubcell/CartesianFluxDivergence.hpp"
      26             : #include "Evolution/DgSubcell/CellCenteredFlux.hpp"
      27             : #include "Evolution/DgSubcell/ComputeBoundaryTerms.hpp"
      28             : #include "Evolution/DgSubcell/CorrectPackagedData.hpp"
      29             : #include "Evolution/DgSubcell/GetTciDecision.hpp"
      30             : #include "Evolution/DgSubcell/GhostZoneInverseJacobian.hpp"
      31             : #include "Evolution/DgSubcell/NeighborReconstructedFaceSolution.hpp"
      32             : #include "Evolution/DgSubcell/NeighborTciDecision.hpp"
      33             : #include "Evolution/DgSubcell/PerssonTci.hpp"
      34             : #include "Evolution/DgSubcell/PrepareNeighborData.hpp"
      35             : #include "Evolution/DgSubcell/SetInterpolators.hpp"
      36             : #include "Evolution/DgSubcell/SubcellEqualRateRegion.hpp"
      37             : #include "Evolution/DgSubcell/Tags/MethodOrder.hpp"
      38             : #include "Evolution/DgSubcell/Tags/ObserverCoordinates.hpp"
      39             : #include "Evolution/DgSubcell/Tags/ObserverMesh.hpp"
      40             : #include "Evolution/DgSubcell/Tags/TciStatus.hpp"
      41             : #include "Evolution/DgSubcell/TwoMeshRdmpTci.hpp"
      42             : #include "Evolution/DiscontinuousGalerkin/Actions/ApplyBoundaryCorrections.hpp"
      43             : #include "Evolution/DiscontinuousGalerkin/Actions/ComputeTimeDerivative.hpp"
      44             : #include "Evolution/DiscontinuousGalerkin/BackgroundGrVars.hpp"
      45             : #include "Evolution/DiscontinuousGalerkin/CleanMortarHistory.hpp"
      46             : #include "Evolution/DiscontinuousGalerkin/DgElementArray.hpp"
      47             : #include "Evolution/DiscontinuousGalerkin/EqualRateLts/ChangeFixedLtsRatio.hpp"
      48             : #include "Evolution/DiscontinuousGalerkin/EqualRateLts/FixedLtsRatio.hpp"
      49             : #include "Evolution/DiscontinuousGalerkin/EqualRateLts/NonconformingEqualRateRegions.hpp"
      50             : #include "Evolution/DiscontinuousGalerkin/Initialization/Mortars.hpp"
      51             : #include "Evolution/DiscontinuousGalerkin/Initialization/QuadratureTag.hpp"
      52             : #include "Evolution/DiscontinuousGalerkin/Initialization/SetupEqualRateRegions.hpp"
      53             : #include "Evolution/DiscontinuousGalerkin/Initialization/SpectralFilters.hpp"
      54             : #include "Evolution/Initialization/ConservativeSystem.hpp"
      55             : #include "Evolution/Initialization/DgDomain.hpp"
      56             : #include "Evolution/Initialization/Evolution.hpp"
      57             : #include "Evolution/Initialization/SetVariables.hpp"
      58             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/AllSolutions.hpp"
      59             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/BoundaryConditions/Factory.hpp"
      60             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/BoundaryCorrections/Factory.hpp"
      61             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/ComovingMagneticFieldMagnitude.hpp"
      62             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/FiniteDifference/Factory.hpp"
      63             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/FiniteDifference/RegisterDerivedWithCharm.hpp"
      64             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/FiniteDifference/Tag.hpp"
      65             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/FixConservatives.hpp"
      66             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Flattener.hpp"
      67             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Fluxes.hpp"
      68             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/KastaunEtAl.hpp"
      69             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/NewmanHamlin.hpp"
      70             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/PalenzuelaEtAl.hpp"
      71             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/QuadrupoleFormula.hpp"
      72             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/SetVariablesNeededFixingToFalse.hpp"
      73             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/FixConservativesAndComputePrims.hpp"
      74             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/NeighborPackagedData.hpp"
      75             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/PrimitiveGhostData.hpp"
      76             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/PrimsAfterRollback.hpp"
      77             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/ResizeAndComputePrimitives.hpp"
      78             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/SetInitialRdmpData.hpp"
      79             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/SwapGrTags.hpp"
      80             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/TciOnDgGrid.hpp"
      81             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/TciOnFdGrid.hpp"
      82             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Subcell/TimeDerivative.hpp"
      83             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/System.hpp"
      84             : #include "Evolution/Systems/GrMhd/ValenciaDivClean/Tags.hpp"
      85             : #include "Evolution/VariableFixing/Actions.hpp"
      86             : #include "Evolution/VariableFixing/FixToAtmosphere.hpp"
      87             : #include "Evolution/VariableFixing/ParameterizedDeleptonization.hpp"
      88             : #include "Evolution/VariableFixing/Tags.hpp"
      89             : #include "IO/Observer/Actions/RegisterEvents.hpp"
      90             : #include "IO/Observer/Helpers.hpp"
      91             : #include "IO/Observer/ObserverComponent.hpp"
      92             : #include "NumericalAlgorithms/DiscontinuousGalerkin/Formulation.hpp"
      93             : #include "NumericalAlgorithms/DiscontinuousGalerkin/Tags.hpp"
      94             : #include "NumericalAlgorithms/LinearOperators/Divergence.hpp"
      95             : #include "NumericalAlgorithms/LinearOperators/Filters/Factory.hpp"
      96             : #include "Options/Protocols/FactoryCreation.hpp"
      97             : #include "Options/String.hpp"
      98             : #include "Parallel/Algorithms/AlgorithmSingleton.hpp"
      99             : #include "Parallel/Local.hpp"
     100             : #include "Parallel/Phase.hpp"
     101             : #include "Parallel/PhaseControl/CheckpointAndExitAfterWallclock.hpp"
     102             : #include "Parallel/PhaseControl/ExecutePhaseChange.hpp"
     103             : #include "Parallel/PhaseControl/Factory.hpp"
     104             : #include "Parallel/PhaseControl/VisitAndReturn.hpp"
     105             : #include "Parallel/PhaseDependentActionList.hpp"
     106             : #include "Parallel/Protocols/RegistrationMetavariables.hpp"
     107             : #include "ParallelAlgorithms/Actions/AddComputeTags.hpp"
     108             : #include "ParallelAlgorithms/Actions/AddSimpleTags.hpp"
     109             : #include "ParallelAlgorithms/Actions/InitializeItems.hpp"
     110             : #include "ParallelAlgorithms/Actions/MutateApply.hpp"
     111             : #include "ParallelAlgorithms/Actions/SpectralFilter.hpp"
     112             : #include "ParallelAlgorithms/Actions/TerminatePhase.hpp"
     113             : #include "ParallelAlgorithms/Events/ChangeFixedLtsRatio.hpp"
     114             : #include "ParallelAlgorithms/Events/Completion.hpp"
     115             : #include "ParallelAlgorithms/Events/Factory.hpp"
     116             : #include "ParallelAlgorithms/Events/ObserveNorms.hpp"
     117             : #include "ParallelAlgorithms/Events/Tags.hpp"
     118             : #include "ParallelAlgorithms/EventsAndDenseTriggers/DenseTrigger.hpp"
     119             : #include "ParallelAlgorithms/EventsAndDenseTriggers/DenseTriggers/Factory.hpp"
     120             : #include "ParallelAlgorithms/EventsAndTriggers/Actions/RunEventsOnFailure.hpp"
     121             : #include "ParallelAlgorithms/EventsAndTriggers/Event.hpp"
     122             : #include "ParallelAlgorithms/EventsAndTriggers/EventsAndTriggers.hpp"
     123             : #include "ParallelAlgorithms/EventsAndTriggers/LogicalTriggers.hpp"
     124             : #include "ParallelAlgorithms/EventsAndTriggers/Trigger.hpp"
     125             : #include "ParallelAlgorithms/Interpolation/Actions/ElementInitInterpPoints.hpp"
     126             : #include "ParallelAlgorithms/Interpolation/Actions/InitializeInterpolationTarget.hpp"
     127             : #include "ParallelAlgorithms/Interpolation/Callbacks/ObserveTimeSeriesOnSurface.hpp"
     128             : #include "ParallelAlgorithms/Interpolation/Events/InterpolateWithoutInterpComponent.hpp"
     129             : #include "ParallelAlgorithms/Interpolation/InterpolationTarget.hpp"
     130             : #include "ParallelAlgorithms/Interpolation/Protocols/InterpolationTargetTag.hpp"
     131             : #include "ParallelAlgorithms/Interpolation/Tags.hpp"
     132             : #include "ParallelAlgorithms/Interpolation/Targets/KerrHorizon.hpp"
     133             : #include "ParallelAlgorithms/Interpolation/Targets/SpecifiedPoints.hpp"
     134             : #include "PointwiseFunctions/AnalyticData/AnalyticData.hpp"
     135             : #include "PointwiseFunctions/AnalyticData/GrMhd/BlastWave.hpp"
     136             : #include "PointwiseFunctions/AnalyticData/GrMhd/BondiHoyleAccretion.hpp"
     137             : #include "PointwiseFunctions/AnalyticData/GrMhd/CcsnCollapse.hpp"
     138             : #include "PointwiseFunctions/AnalyticData/GrMhd/KhInstability.hpp"
     139             : #include "PointwiseFunctions/AnalyticData/GrMhd/MagneticFieldLoop.hpp"
     140             : #include "PointwiseFunctions/AnalyticData/GrMhd/MagneticRotor.hpp"
     141             : #include "PointwiseFunctions/AnalyticData/GrMhd/MagnetizedFmDisk.hpp"
     142             : #include "PointwiseFunctions/AnalyticData/GrMhd/MagnetizedTovStar.hpp"
     143             : #include "PointwiseFunctions/AnalyticData/GrMhd/OrszagTangVortex.hpp"
     144             : #include "PointwiseFunctions/AnalyticData/GrMhd/PolarMagnetizedFmDisk.hpp"
     145             : #include "PointwiseFunctions/AnalyticData/GrMhd/RiemannProblem.hpp"
     146             : #include "PointwiseFunctions/AnalyticData/GrMhd/SlabJet.hpp"
     147             : #include "PointwiseFunctions/AnalyticData/Tags.hpp"
     148             : #include "PointwiseFunctions/AnalyticSolutions/AnalyticSolution.hpp"
     149             : #include "PointwiseFunctions/AnalyticSolutions/GrMhd/AlfvenWave.hpp"
     150             : #include "PointwiseFunctions/AnalyticSolutions/GrMhd/BondiMichel.hpp"
     151             : #include "PointwiseFunctions/AnalyticSolutions/GrMhd/KomissarovShock.hpp"
     152             : #include "PointwiseFunctions/AnalyticSolutions/GrMhd/SmoothFlow.hpp"
     153             : #include "PointwiseFunctions/AnalyticSolutions/RelativisticEuler/FishboneMoncriefDisk.hpp"
     154             : #include "PointwiseFunctions/AnalyticSolutions/RelativisticEuler/RotatingStar.hpp"
     155             : #include "PointwiseFunctions/AnalyticSolutions/RelativisticEuler/TovStar.hpp"
     156             : #include "PointwiseFunctions/AnalyticSolutions/Tags.hpp"
     157             : #include "PointwiseFunctions/GeneralRelativity/Surfaces/Tags.hpp"
     158             : #include "PointwiseFunctions/Hydro/EquationsOfState/Factory.hpp"
     159             : #include "PointwiseFunctions/Hydro/EquationsOfState/RegisterDerivedWithCharm.hpp"
     160             : #include "PointwiseFunctions/Hydro/InversePlasmaBeta.hpp"
     161             : #include "PointwiseFunctions/Hydro/MassFlux.hpp"
     162             : #include "PointwiseFunctions/Hydro/QuadrupoleFormula.hpp"
     163             : #include "PointwiseFunctions/Hydro/SpecificEntropy.hpp"
     164             : #include "PointwiseFunctions/Hydro/Tags.hpp"
     165             : #include "PointwiseFunctions/Hydro/TransportVelocity.hpp"
     166             : #include "Time/Actions/SelfStartActions.hpp"
     167             : #include "Time/AdvanceTime.hpp"
     168             : #include "Time/ChangeSlabSize/Action.hpp"
     169             : #include "Time/ChangeStepSize.hpp"
     170             : #include "Time/ChangeTimeStepperOrder.hpp"
     171             : #include "Time/CleanHistory.hpp"
     172             : #include "Time/RecordTimeStepperData.hpp"
     173             : #include "Time/StepChoosers/Factory.hpp"
     174             : #include "Time/StepChoosers/StepChooser.hpp"
     175             : #include "Time/Tags/Time.hpp"
     176             : #include "Time/Tags/TimeStepId.hpp"
     177             : #include "Time/TimeSequence.hpp"
     178             : #include "Time/TimeSteppers/Factory.hpp"
     179             : #include "Time/TimeSteppers/TimeStepper.hpp"
     180             : #include "Time/Triggers/TimeTriggers.hpp"
     181             : #include "Time/UpdateU.hpp"
     182             : #include "Utilities/Functional.hpp"
     183             : #include "Utilities/ProtocolHelpers.hpp"
     184             : #include "Utilities/TMPL.hpp"
     185             : 
     186             : /// \cond
     187             : namespace Frame {
     188             : struct Inertial;
     189             : }  // namespace Frame
     190             : namespace PUP {
     191             : class er;
     192             : }  // namespace PUP
     193             : namespace Parallel {
     194             : template <typename Metavariables>
     195             : class CProxy_GlobalCache;
     196             : }  // namespace Parallel
     197             : /// \endcond
     198             : 
     199             : template <typename InterpolationTargetTags, bool UseParametrizedDeleptonization>
     200             : struct EvolutionMetavars;
     201             : 
     202             : template <typename... InterpolationTargetTags,
     203             :           bool UseParametrizedDeleptonization>
     204           0 : struct EvolutionMetavars<tmpl::list<InterpolationTargetTags...>,
     205             :                          UseParametrizedDeleptonization> {
     206             :   // The use_dg_subcell flag controls whether to use unlimited DG (false)
     207             :   // or a DG-FD hybrid scheme (true).
     208           0 :   static constexpr bool use_parametrized_deleptonization =
     209             :       UseParametrizedDeleptonization;
     210           0 :   static constexpr bool use_dg_subcell = true;
     211           0 :   static constexpr size_t volume_dim = 3;
     212           0 :   using initial_data_list =
     213             :       grmhd::ValenciaDivClean::InitialData::initial_data_list;
     214             : 
     215             :   // Boolean verifying if parameterized deleptonization will be active.  This
     216             :   // will only be active for CCSN evolution.
     217           0 :   using parameterized_deleptonization =
     218             :       tmpl::conditional_t<UseParametrizedDeleptonization,
     219             :                           VariableFixing::Actions::FixVariables<
     220             :                               VariableFixing::ParameterizedDeleptonization>,
     221             :                           tmpl::list<>>;
     222           0 :   using eos_base = EquationsOfState::EquationOfState<true, 3>;
     223           0 :   using equation_of_state_type = typename std::unique_ptr<eos_base>;
     224           0 :   using initial_data_tag = evolution::initial_data::Tags::InitialData;
     225           0 :   using system = grmhd::ValenciaDivClean::System;
     226           0 :   using temporal_id = Tags::TimeStepId;
     227             : 
     228           0 :   static constexpr bool use_dg_element_collection = false;
     229             : 
     230           0 :   using analytic_variables_tags =
     231             :       typename system::primitive_variables_tag::tags_list;
     232           0 :   using equation_of_state_tag = hydro::Tags::GrmhdEquationOfState;
     233             : 
     234           0 :   using interpolator_source_vars =
     235             :       tmpl::remove_duplicates<tmpl::flatten<tmpl::list<
     236             :           typename InterpolationTargetTags::vars_to_interpolate_to_target...>>>;
     237             : 
     238           0 :   using ordered_list_of_primitive_recovery_schemes = tmpl::list<
     239             :       grmhd::ValenciaDivClean::PrimitiveRecoverySchemes::KastaunEtAl,
     240             :       grmhd::ValenciaDivClean::PrimitiveRecoverySchemes::NewmanHamlin,
     241             :       grmhd::ValenciaDivClean::PrimitiveRecoverySchemes::PalenzuelaEtAl>;
     242             : 
     243           0 :   using interpolation_target_tags = tmpl::list<InterpolationTargetTags...>;
     244             : 
     245           0 :   using analytic_compute = evolution::Tags::AnalyticSolutionsCompute<
     246             :       volume_dim, analytic_variables_tags, use_dg_subcell, initial_data_list>;
     247           0 :   using error_compute = Tags::ErrorsCompute<analytic_variables_tags>;
     248           0 :   using error_tags = db::wrap_tags_in<Tags::Error, analytic_variables_tags>;
     249           0 :   using observe_fields = tmpl::push_back<
     250             :       tmpl::append<
     251             :           typename system::variables_tag::tags_list,
     252             :           typename system::primitive_variables_tag::tags_list,
     253             :           typename system::flux_spacetime_variables_tag::tags_list,
     254             :           tmpl::list<
     255             :               grmhd::ValenciaDivClean::Tags::
     256             :                   ComovingMagneticFieldMagnitudeCompute,
     257             :               ::Tags::DivVectorCompute<
     258             :                   hydro::Tags::MagneticField<DataVector, volume_dim>,
     259             :                   ::Events::Tags::ObserverMesh<volume_dim>,
     260             :                   ::Events::Tags::ObserverInverseJacobian<
     261             :                       volume_dim, Frame::ElementLogical, Frame::Inertial>>>,
     262             :           error_tags,
     263             :           tmpl::conditional_t<
     264             :               use_dg_subcell,
     265             :               tmpl::list<
     266             :                   evolution::dg::subcell::Tags::TciStatusCompute<volume_dim>,
     267             :                   evolution::dg::subcell::Tags::MethodOrderCompute<volume_dim>>,
     268             :               tmpl::list<>>>,
     269             :       tmpl::conditional_t<
     270             :           use_dg_subcell,
     271             :           evolution::dg::subcell::Tags::ObserverCoordinatesCompute<
     272             :               volume_dim, Frame::ElementLogical>,
     273             :           ::Events::Tags::ObserverCoordinatesCompute<volume_dim,
     274             :                                                      Frame::ElementLogical>>,
     275             :       tmpl::conditional_t<
     276             :           use_dg_subcell,
     277             :           evolution::dg::subcell::Tags::ObserverCoordinatesCompute<volume_dim,
     278             :                                                                    Frame::Grid>,
     279             :           ::Events::Tags::ObserverCoordinatesCompute<volume_dim, Frame::Grid>>,
     280             :       tmpl::conditional_t<
     281             :           use_dg_subcell,
     282             :           evolution::dg::subcell::Tags::ObserverCoordinatesCompute<
     283             :               volume_dim, Frame::Inertial>,
     284             :           ::Events::Tags::ObserverCoordinatesCompute<volume_dim,
     285             :                                                      Frame::Inertial>>,
     286             :       grmhd::ValenciaDivClean::Tags::QuadrupoleMomentCompute<
     287             :           DataVector, volume_dim,
     288             :           ::Events::Tags::ObserverCoordinates<volume_dim, Frame::Inertial>>,
     289             :       grmhd::ValenciaDivClean::Tags::QuadrupoleMomentDerivativeCompute<
     290             :           DataVector, volume_dim,
     291             :           ::Events::Tags::ObserverCoordinates<volume_dim, Frame::Inertial>,
     292             :           hydro::Tags::SpatialVelocity<DataVector, volume_dim,
     293             :                                        Frame::Inertial>>,
     294             :       hydro::Tags::TransportVelocityCompute<DataVector, volume_dim,
     295             :                                             Frame::Inertial>,
     296             :       grmhd::ValenciaDivClean::Tags::QuadrupoleMomentDerivativeCompute<
     297             :           DataVector, volume_dim,
     298             :           ::Events::Tags::ObserverCoordinates<volume_dim, Frame::Inertial>,
     299             :           hydro::Tags::TransportVelocity<DataVector, volume_dim,
     300             :                                          Frame::Inertial>>,
     301             :       hydro::Tags::InversePlasmaBetaCompute<DataVector>,
     302             :       hydro::Tags::SpecificEntropyCompute<DataVector>>;
     303           0 :   using non_tensor_compute_tags = tmpl::list<
     304             :       tmpl::conditional_t<
     305             :           use_dg_subcell,
     306             :           tmpl::list<
     307             :               evolution::dg::subcell::Tags::ObserverMeshCompute<volume_dim>,
     308             :               evolution::dg::subcell::Tags::ObserverInverseJacobianCompute<
     309             :                   volume_dim, Frame::ElementLogical, Frame::Inertial>,
     310             :               evolution::dg::subcell::Tags::
     311             :                   ObserverJacobianAndDetInvJacobianCompute<
     312             :                       volume_dim, Frame::ElementLogical, Frame::Inertial>>,
     313             :           tmpl::list<::Events::Tags::ObserverMeshCompute<volume_dim>,
     314             :                      ::Events::Tags::ObserverInverseJacobianCompute<
     315             :                          volume_dim, Frame::ElementLogical, Frame::Inertial>,
     316             :                      ::Events::Tags::ObserverJacobianCompute<
     317             :                          volume_dim, Frame::ElementLogical, Frame::Inertial>,
     318             :                      ::Events::Tags::ObserverDetInvJacobianCompute<
     319             :                          Frame::ElementLogical, Frame::Inertial>>>,
     320             :       analytic_compute, error_compute>;
     321             : 
     322           0 :   struct factory_creation
     323             :       : tt::ConformsTo<Options::protocols::FactoryCreation> {
     324           0 :     using factory_classes = tmpl::map<
     325             :         tmpl::pair<DenseTrigger, DenseTriggers::standard_dense_triggers>,
     326             :         tmpl::pair<DomainCreator<volume_dim>, domain_creators<volume_dim>>,
     327             :         tmpl::pair<
     328             :             Event,
     329             :             tmpl::flatten<tmpl::list<
     330             :                 Events::Completion,
     331             :                 dg::Events::field_observations<volume_dim, observe_fields,
     332             :                                                non_tensor_compute_tags>,
     333             :                 Events::time_events<system>,
     334             :                 intrp::Events::InterpolateWithoutInterpComponent<
     335             :                     3, InterpolationTargetTags, interpolator_source_vars>...,
     336             :                 dg::Events::ChangeFixedLtsRatio<volume_dim>>>>,
     337             :         tmpl::pair<evolution::BoundaryCorrection,
     338             :                    grmhd::ValenciaDivClean::BoundaryCorrections::
     339             :                        standard_boundary_corrections>,
     340             :         tmpl::pair<evolution::initial_data::InitialData, initial_data_list>,
     341             :         tmpl::pair<
     342             :             grmhd::ValenciaDivClean::BoundaryConditions::BoundaryCondition,
     343             :             grmhd::ValenciaDivClean::BoundaryConditions::
     344             :                 standard_boundary_conditions>,
     345             :         tmpl::pair<
     346             :             grmhd::AnalyticData::InitialMagneticFields::InitialMagneticField,
     347             :             grmhd::AnalyticData::InitialMagneticFields::
     348             :                 initial_magnetic_fields>,
     349             :         tmpl::pair<PhaseChange, PhaseControl::factory_creatable_classes>,
     350             :         tmpl::pair<StepChooser<StepChooserUse::LtsStep>,
     351             :                    StepChoosers::standard_step_choosers<system>>,
     352             :         tmpl::pair<StepChooser<StepChooserUse::Slab>,
     353             :                    tmpl::push_back<
     354             :                        StepChoosers::standard_slab_choosers<system>,
     355             :                        evolution::dg::StepChoosers::FixedLtsRatio<volume_dim>>>,
     356             :         tmpl::pair<TimeSequence<double>,
     357             :                    TimeSequences::all_time_sequences<double>>,
     358             :         tmpl::pair<TimeSequence<std::uint64_t>,
     359             :                    TimeSequences::all_time_sequences<std::uint64_t>>,
     360             :         tmpl::pair<TimeStepper, TimeSteppers::time_steppers>,
     361             :         tmpl::pair<Trigger, tmpl::append<Triggers::logical_triggers,
     362             :                                          Triggers::time_triggers>>,
     363             :         tmpl::pair<Filters::Filter<volume_dim,
     364             :                                    typename system::variables_tag::tags_list>,
     365             :                    Filters::all_filters<
     366             :                        volume_dim, typename system::variables_tag::tags_list>>>;
     367             :   };
     368             : 
     369           0 :   using observed_reduction_data_tags = observers::collect_reduction_data_tags<
     370             :       tmpl::at<typename factory_creation::factory_classes, Event>>;
     371             : 
     372           0 :   struct SubcellOptions {
     373           0 :     using evolved_vars_tags = typename system::variables_tag::tags_list;
     374           0 :     using prim_tags = typename system::primitive_variables_tag::tags_list;
     375           0 :     using recons_prim_tags = tmpl::push_back<
     376             :         prim_tags,
     377             :         hydro::Tags::LorentzFactorTimesSpatialVelocity<DataVector, 3>>;
     378           0 :     using fluxes_tags =
     379             :         db::wrap_tags_in<Tags::Flux, evolved_vars_tags,
     380             :                          tmpl::size_t<volume_dim>, Frame::Inertial>;
     381             : 
     382           0 :     static constexpr bool subcell_enabled = use_dg_subcell;
     383           0 :     static constexpr bool subcell_enabled_at_external_boundary = true;
     384             : 
     385             :     // We send `ghost_zone_size` cell-centered grid points for variable
     386             :     // reconstruction, of which we need `ghost_zone_size-1` for reconstruction
     387             :     // to the internal side of the element face, and `ghost_zone_size` for
     388             :     // reconstruction to the external side of the element face.
     389             :     template <typename DbTagsList>
     390           0 :     static constexpr size_t ghost_zone_size(
     391             :         const db::DataBox<DbTagsList>& box) {
     392             :       return db::get<grmhd::ValenciaDivClean::fd::Tags::Reconstructor>(box)
     393             :           .ghost_zone_size();
     394             :     }
     395             : 
     396           0 :     using DgComputeSubcellNeighborPackagedData =
     397             :         grmhd::ValenciaDivClean::subcell::NeighborPackagedData;
     398             : 
     399           0 :     using GhostVariables =
     400             :         grmhd::ValenciaDivClean::subcell::PrimitiveGhostVariables;
     401             :   };
     402             : 
     403           0 :   using events_and_dense_triggers_dg_postprocessors = tmpl::list<
     404             :       evolution::dg::ApplyLtsDenseBoundaryCorrections<EvolutionMetavars>,
     405             :       AlwaysReadyPostprocessor<system::primitive_from_conservative<
     406             :           ordered_list_of_primitive_recovery_schemes>>>;
     407             : 
     408           0 :   using events_and_dense_triggers_subcell_postprocessors =
     409             :       tmpl::list<AlwaysReadyPostprocessor<
     410             :           grmhd::ValenciaDivClean::subcell::FixConservativesAndComputePrims<
     411             :               ordered_list_of_primitive_recovery_schemes>>>;
     412             : 
     413           0 :   using dg_step_actions = tmpl::flatten<tmpl::list<
     414             :       Actions::MutateApply<
     415             :           evolution::dg::BackgroundGrVars<system, EvolutionMetavars>>,
     416             :       evolution::dg::Actions::ComputeTimeDerivative<
     417             :           volume_dim, system, AllStepChoosers, use_dg_element_collection>,
     418             :       evolution::dg::Actions::ApplyBoundaryCorrectionsToTimeDerivative<
     419             :           volume_dim, use_dg_element_collection>,
     420             :       Actions::MutateApply<RecordTimeStepperData<system>>,
     421             :       evolution::Actions::RunEventsAndDenseTriggers<
     422             :           events_and_dense_triggers_dg_postprocessors>,
     423             :       Actions::MutateApply<UpdateU<system>>,
     424             :       evolution::dg::Actions::ApplyLtsBoundaryCorrections<
     425             :           volume_dim, use_dg_element_collection>,
     426             :       Actions::MutateApply<ChangeTimeStepperOrder<system>>,
     427             :       tmpl::conditional_t<
     428             :           use_dg_subcell,
     429             :           // Note: The primitive variables are computed as part of the TCI.
     430             :           evolution::dg::subcell::Actions::TciAndRollback<
     431             :               grmhd::ValenciaDivClean::subcell::TciOnDgGrid<
     432             :                   tmpl::front<ordered_list_of_primitive_recovery_schemes>>>,
     433             :           tmpl::list<>>,
     434             :       Actions::MutateApply<CleanHistory<system>>,
     435             :       Actions::MutateApply<evolution::dg::CleanMortarHistory<volume_dim>>,
     436             :       dg::Actions::SpectralFilter<volume_dim,
     437             :                                   typename system::variables_tag::tags_list>,
     438             :       tmpl::conditional_t<
     439             :           use_dg_subcell,
     440             :           tmpl::list<>,
     441             :           tmpl::list<VariableFixing::Actions::FixVariables<
     442             :               grmhd::ValenciaDivClean::Flattener<
     443             :                   ordered_list_of_primitive_recovery_schemes>>>>,
     444             :       parameterized_deleptonization,
     445             :       VariableFixing::Actions::FixVariables<
     446             :           VariableFixing::FixToAtmosphere<volume_dim>>,
     447             :       Actions::UpdateConservatives>>;
     448             : 
     449           0 :   using dg_subcell_step_actions = tmpl::flatten<tmpl::list<
     450             :       evolution::dg::subcell::Actions::SelectNumericalMethod,
     451             : 
     452             :       Actions::Label<evolution::dg::subcell::Actions::Labels::BeginDg>,
     453             :       dg_step_actions,
     454             :       Actions::Goto<evolution::dg::subcell::Actions::Labels::EndOfSolvers>,
     455             : 
     456             :       Actions::Label<evolution::dg::subcell::Actions::Labels::BeginSubcell>,
     457             :       // This is just to adjust for FixedLtsRatio, so we
     458             :       // can pass an empty list of StepChoosers.
     459             :       Actions::MutateApply<ChangeStepSize<tmpl::list<>>>,
     460             :       Actions::MutateApply<evolution::dg::subcell::BackgroundGrVars<
     461             :           system, EvolutionMetavars, false>>,
     462             :       Actions::MutateApply<evolution::dg::subcell::fd::CellCenteredFlux<
     463             :           system, grmhd::ValenciaDivClean::ComputeFluxes, volume_dim, false>>,
     464             :       evolution::dg::subcell::Actions::SendDataForReconstruction<
     465             :           volume_dim, grmhd::ValenciaDivClean::subcell::PrimitiveGhostVariables,
     466             :           use_dg_element_collection>,
     467             :       evolution::dg::subcell::Actions::ReceiveAndSendDataForReconstruction<
     468             :           volume_dim, grmhd::ValenciaDivClean::subcell::PrimitiveGhostVariables,
     469             :           use_dg_element_collection>,
     470             :       evolution::dg::subcell::Actions::ReceiveDataForReconstruction<volume_dim>,
     471             :       Actions::Label<
     472             :           evolution::dg::subcell::Actions::Labels::BeginSubcellAfterDgRollback>,
     473             :       Actions::MutateApply<evolution::dg::subcell::BackgroundGrVars<
     474             :           system, EvolutionMetavars, true>>,
     475             :       Actions::MutateApply<grmhd::ValenciaDivClean::subcell::SwapGrTags>,
     476             :       Actions::MutateApply<grmhd::ValenciaDivClean::subcell::PrimsAfterRollback<
     477             :           ordered_list_of_primitive_recovery_schemes>>,
     478             :       Actions::MutateApply<evolution::dg::subcell::fd::CellCenteredFlux<
     479             :           system, grmhd::ValenciaDivClean::ComputeFluxes, volume_dim, true>>,
     480             :       evolution::dg::subcell::fd::Actions::TakeTimeStep<
     481             :           grmhd::ValenciaDivClean::subcell::TimeDerivative>,
     482             :       Actions::MutateApply<RecordTimeStepperData<system>>,
     483             :       evolution::Actions::RunEventsAndDenseTriggers<
     484             :           events_and_dense_triggers_subcell_postprocessors>,
     485             :       Actions::MutateApply<UpdateU<system>>,
     486             :       Actions::MutateApply<CleanHistory<system>>,
     487             :       Actions::MutateApply<evolution::dg::CleanMortarHistory<volume_dim>>,
     488             :       Actions::MutateApply<
     489             :           grmhd::ValenciaDivClean::subcell::FixConservativesAndComputePrims<
     490             :               ordered_list_of_primitive_recovery_schemes>>,
     491             :       evolution::dg::subcell::Actions::TciAndSwitchToDg<
     492             :           grmhd::ValenciaDivClean::subcell::TciOnFdGrid>,
     493             :       Actions::MutateApply<grmhd::ValenciaDivClean::subcell::SwapGrTags>,
     494             :       Actions::MutateApply<
     495             :           grmhd::ValenciaDivClean::subcell::ResizeAndComputePrims<
     496             :               ordered_list_of_primitive_recovery_schemes>>,
     497             :       parameterized_deleptonization,
     498             :       VariableFixing::Actions::FixVariables<
     499             :           VariableFixing::FixToAtmosphere<volume_dim>>,
     500             :       Actions::UpdateConservatives,
     501             : 
     502             :       Actions::Label<evolution::dg::subcell::Actions::Labels::EndOfSolvers>>>;
     503             : 
     504           0 :   using step_actions =
     505             :       tmpl::conditional_t<use_dg_subcell, dg_subcell_step_actions,
     506             :                           dg_step_actions>;
     507             : 
     508           0 :   using dg_registration_list =
     509             :       tmpl::list<observers::Actions::RegisterEventsWithObservers>;
     510             : 
     511           0 :   using equal_rate_regions = tmpl::flatten<
     512             :       tmpl::list<evolution::dg::NonconformingEqualRateRegions<volume_dim>,
     513             :                  tmpl::conditional_t<
     514             :                      use_dg_subcell,
     515             :                      evolution::dg::subcell::SubcellEqualRateRegion<volume_dim>,
     516             :                      tmpl::list<>>>>;
     517             : 
     518           0 :   using initialization_actions = tmpl::flatten<tmpl::list<
     519             :       Initialization::Actions::InitializeItems<
     520             :           Initialization::TimeStepping<EvolutionMetavars, TimeStepper, false,
     521             :                                        true>,
     522             :           evolution::dg::Initialization::Domain<EvolutionMetavars>,
     523             :           evolution::dg::subcell::GhostZoneInverseJacobian<
     524             :               volume_dim, grmhd::ValenciaDivClean::fd::Tags::Reconstructor>>,
     525             :       Initialization::Actions::AddSimpleTags<
     526             :           evolution::dg::BackgroundGrVars<system, EvolutionMetavars>>,
     527             :       Initialization::Actions::ConservativeSystem<system>,
     528             :       Initialization::Actions::InitializeItems<
     529             :           Initialization::TimeStepperHistory<system>>,
     530             : 
     531             :       tmpl::conditional_t<
     532             :           use_dg_subcell,
     533             :           tmpl::list<
     534             :               evolution::dg::subcell::Actions::SetSubcellGrid<volume_dim,
     535             :                                                               system, false>,
     536             :               Actions::MutateApply<evolution::dg::subcell::SetInterpolators<
     537             :                   volume_dim,
     538             :                   grmhd::ValenciaDivClean::fd::Tags::Reconstructor>>,
     539             :               Initialization::Actions::AddSimpleTags<
     540             :                   evolution::dg::subcell::BackgroundGrVars<
     541             :                       system, EvolutionMetavars, false>,
     542             :                   grmhd::ValenciaDivClean::SetVariablesNeededFixingToFalse>,
     543             :               Actions::MutateApply<
     544             :                   grmhd::ValenciaDivClean::subcell::SwapGrTags>,
     545             :               parameterized_deleptonization,
     546             :               VariableFixing::Actions::FixVariables<
     547             :                   VariableFixing::FixToAtmosphere<volume_dim>>,
     548             :               Actions::UpdateConservatives,
     549             :               evolution::dg::subcell::Actions::SetAndCommunicateInitialRdmpData<
     550             :                   volume_dim,
     551             :                   grmhd::ValenciaDivClean::subcell::SetInitialRdmpData>,
     552             :               evolution::dg::subcell::Actions::ComputeAndSendTciOnInitialGrid<
     553             :                   volume_dim, system,
     554             :                   grmhd::ValenciaDivClean::subcell::TciOnFdGrid>,
     555             :               evolution::dg::subcell::Actions::SetInitialGridFromTciData<
     556             :                   volume_dim, system>,
     557             :               Actions::MutateApply<
     558             :                   grmhd::ValenciaDivClean::subcell::SwapGrTags>,
     559             :               Actions::MutateApply<
     560             :                   grmhd::ValenciaDivClean::subcell::ResizeAndComputePrims<
     561             :                       ordered_list_of_primitive_recovery_schemes>>,
     562             :               parameterized_deleptonization,
     563             :               VariableFixing::Actions::FixVariables<
     564             :                   VariableFixing::FixToAtmosphere<volume_dim>>,
     565             :               Actions::UpdateConservatives>,
     566             :           tmpl::list<evolution::Initialization::Actions::SetVariables<
     567             :                          domain::Tags::Coordinates<3, Frame::ElementLogical>>,
     568             :                      parameterized_deleptonization,
     569             :                      VariableFixing::Actions::FixVariables<
     570             :                          VariableFixing::FixToAtmosphere<volume_dim>>,
     571             :                      Actions::UpdateConservatives>>,
     572             : 
     573             :       Initialization::Actions::AddComputeTags<
     574             :           StepChoosers::step_chooser_compute_tags<EvolutionMetavars>>,
     575             :       ::evolution::dg::Initialization::Mortars<volume_dim>,
     576             :       evolution::dg::Initialization::Actions::SetupEqualRateRegions<
     577             :           EvolutionMetavars, volume_dim, equal_rate_regions>,
     578             :       evolution::Actions::InitializeRunEventsAndDenseTriggers,
     579             :       Initialization::Actions::InitializeItems<
     580             :           evolution::dg::Initialization::SpectralFilters<
     581             :               volume_dim, typename system::variables_tag::tags_list>>,
     582             :       intrp::Actions::ElementInitInterpPoints<volume_dim,
     583             :                                               interpolation_target_tags>,
     584             :       Parallel::Actions::TerminatePhase>>;
     585             : 
     586           0 :   using dg_element_array_component = DgElementArray<
     587             :       EvolutionMetavars,
     588             :       tmpl::list<Parallel::PhaseActions<Parallel::Phase::Initialization,
     589             :                                         initialization_actions>,
     590             : 
     591             :                  Parallel::PhaseActions<
     592             :                      Parallel::Phase::InitializeTimeStepperHistory,
     593             :                      SelfStart::self_start_procedure<step_actions, system>>,
     594             : 
     595             :                  Parallel::PhaseActions<
     596             :                      Parallel::Phase::Register,
     597             :                      tmpl::push_back<dg_registration_list,
     598             :                                      Parallel::Actions::TerminatePhase>>,
     599             : 
     600             :                  Parallel::PhaseActions<
     601             :                      Parallel::Phase::Restart,
     602             :                      tmpl::push_back<dg_registration_list,
     603             :                                      Parallel::Actions::TerminatePhase>>,
     604             : 
     605             :                  Parallel::PhaseActions<
     606             :                      Parallel::Phase::WriteCheckpoint,
     607             :                      tmpl::list<evolution::Actions::RunEventsAndTriggers<
     608             :                                     Triggers::WhenToCheck::AtCheckpoints>,
     609             :                                 Parallel::Actions::TerminatePhase>>,
     610             : 
     611             :                  Parallel::PhaseActions<
     612             :                      Parallel::Phase::Evolve,
     613             :                      tmpl::flatten<tmpl::list<
     614             :                          evolution::Actions::RunEventsAndTriggers<
     615             :                              Triggers::WhenToCheck::AtSteps>,
     616             :                          evolution::Actions::RunEventsAndTriggers<
     617             :                              Triggers::WhenToCheck::AtSlabs>,
     618             :                          Actions::ChangeSlabSize,
     619             :                          evolution::dg::Actions::ChangeFixedLtsRatio,
     620             :                          step_actions, Actions::MutateApply<AdvanceTime<>>,
     621             :                          PhaseControl::Actions::ExecutePhaseChange>>>,
     622             :                  Parallel::PhaseActions<
     623             :                      Parallel::Phase::PostFailureCleanup,
     624             :                      tmpl::list<Actions::RunEventsOnFailure<Tags::Time>,
     625             :                                 Parallel::Actions::TerminatePhase>>>>;
     626             : 
     627           0 :   struct registration
     628             :       : tt::ConformsTo<Parallel::protocols::RegistrationMetavariables> {
     629           0 :     using element_registrars =
     630             :         tmpl::map<tmpl::pair<dg_element_array_component, dg_registration_list>>;
     631             :   };
     632             : 
     633           0 :   using component_list = tmpl::list<
     634             :       observers::Observer<EvolutionMetavars>,
     635             :       observers::ObserverWriter<EvolutionMetavars>,
     636             :       intrp::InterpolationTarget<EvolutionMetavars, InterpolationTargetTags>...,
     637             :       dg_element_array_component>;
     638             : 
     639           0 :   using const_global_cache_tags = tmpl::push_back<
     640             :       tmpl::conditional_t<
     641             :           use_dg_subcell,
     642             :           tmpl::list<
     643             :               grmhd::ValenciaDivClean::fd::Tags::Reconstructor,
     644             :               ::Tags::VariableFixer<grmhd::ValenciaDivClean::FixConservatives>,
     645             :               grmhd::ValenciaDivClean::subcell::Tags::TciOptions>,
     646             :           tmpl::list<>>,
     647             :       grmhd::ValenciaDivClean::Tags::PrimitiveFromConservativeOptions,
     648             :       equation_of_state_tag, initial_data_tag,
     649             :       grmhd::ValenciaDivClean::Tags::ConstraintDampingParameter>;
     650             : 
     651           0 :   static constexpr Options::String help{
     652             :       "Evolve the Valencia formulation of the GRMHD system with divergence "
     653             :       "cleaning.\n\n"};
     654             : 
     655           0 :   static constexpr std::array<Parallel::Phase, 5> default_phase_order{
     656             :       {Parallel::Phase::Initialization,
     657             :        Parallel::Phase::InitializeTimeStepperHistory, Parallel::Phase::Register,
     658             :        Parallel::Phase::Evolve, Parallel::Phase::Exit}};
     659             : 
     660             :   // NOLINTNEXTLINE(google-runtime-references)
     661           0 :   void pup(PUP::er& /*p*/) {}
     662             : };
     663             : 
     664           0 : struct CenterOfStar : tt::ConformsTo<intrp::protocols::InterpolationTargetTag> {
     665           0 :   struct MaxOfScalar : db::SimpleTag {
     666           0 :     using type = double;
     667             :   };
     668             : 
     669             :   template <typename TagOfScalar>
     670           0 :   struct MaxOfScalarCompute : db::ComputeTag, MaxOfScalar {
     671           0 :     using base = MaxOfScalar;
     672           0 :     using return_type = double;
     673           0 :     static void function(const gsl::not_null<double*> max_of_scalar,
     674             :                          const Scalar<DataVector>& scalar) {
     675             :       *max_of_scalar = max(get(scalar));
     676             :     };
     677           0 :     using argument_tags = tmpl::list<TagOfScalar>;
     678             :   };
     679             : 
     680           0 :   using temporal_id = ::Tags::Time;
     681           0 :   using tags_to_observe =
     682             :       tmpl::list<MaxOfScalarCompute<hydro::Tags::RestMassDensity<DataVector>>>;
     683           0 :   using vars_to_interpolate_to_target =
     684             :       tmpl::list<hydro::Tags::RestMassDensity<DataVector>>;
     685           0 :   using post_interpolation_callbacks =
     686             :       tmpl::list<intrp::callbacks::ObserveTimeSeriesOnSurface<tags_to_observe,
     687             :                                                               CenterOfStar>>;
     688           0 :   using compute_target_points =
     689             :       intrp::TargetPoints::SpecifiedPoints<CenterOfStar, 3>;
     690           0 :   using compute_items_on_target = tags_to_observe;
     691             : 
     692             :   template <typename Metavariables>
     693           0 :   using interpolating_component =
     694             :       typename Metavariables::dg_element_array_component;
     695             : };
     696             : 
     697           0 : struct KerrHorizon : tt::ConformsTo<intrp::protocols::InterpolationTargetTag> {
     698           0 :   using temporal_id = ::Tags::Time;
     699           0 :   using tags_to_observe = tmpl::list<ylm::Tags::EuclideanSurfaceIntegralVector<
     700             :       hydro::Tags::MassFlux<DataVector, 3>, ::Frame::Inertial>>;
     701           0 :   using vars_to_interpolate_to_target =
     702             :       tmpl::list<hydro::Tags::RestMassDensity<DataVector>,
     703             :                  hydro::Tags::SpatialVelocity<DataVector, 3>,
     704             :                  hydro::Tags::LorentzFactor<DataVector>,
     705             :                  gr::Tags::Lapse<DataVector>, gr::Tags::Shift<DataVector, 3>,
     706             :                  gr::Tags::SqrtDetSpatialMetric<DataVector>>;
     707           0 :   using compute_items_on_target = tmpl::push_front<
     708             :       tags_to_observe,
     709             :       ylm::Tags::EuclideanAreaElementCompute<::Frame::Inertial>,
     710             :       hydro::Tags::MassFluxCompute<DataVector, 3, ::Frame::Inertial>>;
     711           0 :   using compute_target_points =
     712             :       intrp::TargetPoints::KerrHorizon<KerrHorizon, ::Frame::Inertial>;
     713           0 :   using post_interpolation_callbacks =
     714             :       tmpl::list<intrp::callbacks::ObserveTimeSeriesOnSurface<tags_to_observe,
     715             :                                                               KerrHorizon>>;
     716             : 
     717             :   template <typename Metavariables>
     718           0 :   using interpolating_component =
     719             :       typename Metavariables::dg_element_array_component;
     720             : };

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