SpECTRE Documentation Coverage Report
Current view: top level - Evolution/Executables/GeneralizedHarmonic - EvolveGhBinaryBlackHole.hpp Hit Total Coverage
Commit: 3ffcbc8ecf43797401b60bcca17d6040ee06f013 Lines: 0 65 0.0 %
Date: 2026-03-03 02:01:44
Legend: Lines: hit not hit

          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 <optional>
       8             : #include <vector>
       9             : 
      10             : #include "ControlSystem/Actions/InitializeMeasurements.hpp"
      11             : #include "ControlSystem/Actions/LimitTimeStep.hpp"
      12             : #include "ControlSystem/CleanFunctionsOfTime.hpp"
      13             : #include "ControlSystem/Component.hpp"
      14             : #include "ControlSystem/ControlErrors/Size/Factory.hpp"
      15             : #include "ControlSystem/ControlErrors/Size/State.hpp"
      16             : #include "ControlSystem/Measurements/BothHorizons.hpp"
      17             : #include "ControlSystem/Metafunctions.hpp"
      18             : #include "ControlSystem/Systems/Expansion.hpp"
      19             : #include "ControlSystem/Systems/Rotation.hpp"
      20             : #include "ControlSystem/Systems/Shape.hpp"
      21             : #include "ControlSystem/Systems/Size.hpp"
      22             : #include "ControlSystem/Systems/Skew.hpp"
      23             : #include "ControlSystem/Systems/Translation.hpp"
      24             : #include "ControlSystem/Trigger.hpp"
      25             : #include "DataStructures/DataBox/PrefixHelpers.hpp"
      26             : #include "DataStructures/DataBox/Tag.hpp"
      27             : #include "DataStructures/LinkedMessageId.hpp"
      28             : #include "DataStructures/Tensor/EagerMath/RaiseOrLowerIndex.hpp"
      29             : #include "Domain/Creators/BinaryCompactObject.hpp"
      30             : #include "Domain/Creators/CylindricalBinaryCompactObject.hpp"
      31             : #include "Domain/Structure/ObjectLabel.hpp"
      32             : #include "Domain/Tags.hpp"
      33             : #include "Domain/TagsCharacteristicSpeeds.hpp"
      34             : #include "Evolution/Actions/RunEventsAndDenseTriggers.hpp"
      35             : #include "Evolution/Actions/RunEventsAndTriggers.hpp"
      36             : #include "Evolution/BoundaryCorrection.hpp"
      37             : #include "Evolution/ComputeTags.hpp"
      38             : #include "Evolution/DiscontinuousGalerkin/Actions/ApplyBoundaryCorrections.hpp"
      39             : #include "Evolution/DiscontinuousGalerkin/Actions/ComputeTimeDerivative.hpp"
      40             : #include "Evolution/DiscontinuousGalerkin/CleanMortarHistory.hpp"
      41             : #include "Evolution/DiscontinuousGalerkin/DgElementArray.hpp"
      42             : #include "Evolution/DiscontinuousGalerkin/Initialization/Mortars.hpp"
      43             : #include "Evolution/Executables/GeneralizedHarmonic/Deadlock.hpp"
      44             : #include "Evolution/Initialization/DgDomain.hpp"
      45             : #include "Evolution/Initialization/Evolution.hpp"
      46             : #include "Evolution/Initialization/NonconservativeSystem.hpp"
      47             : #include "Evolution/Systems/Cce/Callbacks/DumpBondiSachsOnWorldtube.hpp"
      48             : #include "Evolution/Systems/GeneralizedHarmonic/Actions/SetInitialData.hpp"
      49             : #include "Evolution/Systems/GeneralizedHarmonic/BoundaryConditions/Bjorhus.hpp"
      50             : #include "Evolution/Systems/GeneralizedHarmonic/BoundaryConditions/DemandOutgoingCharSpeeds.hpp"
      51             : #include "Evolution/Systems/GeneralizedHarmonic/BoundaryConditions/DirichletMinkowski.hpp"
      52             : #include "Evolution/Systems/GeneralizedHarmonic/BoundaryConditions/Factory.hpp"
      53             : #include "Evolution/Systems/GeneralizedHarmonic/BoundaryCorrections/Factory.hpp"
      54             : #include "Evolution/Systems/GeneralizedHarmonic/Characteristics.hpp"
      55             : #include "Evolution/Systems/GeneralizedHarmonic/Equations.hpp"
      56             : #include "Evolution/Systems/GeneralizedHarmonic/GaugeSourceFunctions/Factory.hpp"
      57             : #include "Evolution/Systems/GeneralizedHarmonic/GaugeSourceFunctions/Gauges.hpp"
      58             : #include "Evolution/Systems/GeneralizedHarmonic/GaugeSourceFunctions/SetPiAndPhiFromConstraints.hpp"
      59             : #include "Evolution/Systems/GeneralizedHarmonic/GaugeSourceFunctions/Tags/GaugeCondition.hpp"
      60             : #include "Evolution/Systems/GeneralizedHarmonic/Initialize.hpp"
      61             : #include "Evolution/Systems/GeneralizedHarmonic/System.hpp"
      62             : #include "Evolution/Systems/GeneralizedHarmonic/Tags.hpp"
      63             : #include "Evolution/Tags/Filter.hpp"
      64             : #include "Evolution/Triggers/SeparationLessThan.hpp"
      65             : #include "Evolution/TypeTraits.hpp"
      66             : #include "IO/Importers/Actions/RegisterWithElementDataReader.hpp"
      67             : #include "IO/Importers/ElementDataReader.hpp"
      68             : #include "IO/Observer/Actions/ObserverRegistration.hpp"
      69             : #include "IO/Observer/Actions/RegisterEvents.hpp"
      70             : #include "IO/Observer/Helpers.hpp"
      71             : #include "IO/Observer/ObserverComponent.hpp"
      72             : #include "IO/Observer/Tags.hpp"
      73             : #include "NumericalAlgorithms/DiscontinuousGalerkin/Tags.hpp"
      74             : #include "NumericalAlgorithms/LinearOperators/ExponentialFilter.hpp"
      75             : #include "Options/Options.hpp"
      76             : #include "Options/ParseOptions.hpp"
      77             : #include "Options/Protocols/FactoryCreation.hpp"
      78             : #include "Options/String.hpp"
      79             : #include "Parallel/Algorithms/AlgorithmSingleton.hpp"
      80             : #include "Parallel/ArrayCollection/DgElementCollection.hpp"
      81             : #include "Parallel/ArrayCollection/SimpleActionOnElement.hpp"
      82             : #include "Parallel/GlobalCache.hpp"
      83             : #include "Parallel/Invoke.hpp"
      84             : #include "Parallel/Local.hpp"
      85             : #include "Parallel/MemoryMonitor/MemoryMonitor.hpp"
      86             : #include "Parallel/Phase.hpp"
      87             : #include "Parallel/PhaseControl/CheckpointAndExitAfterWallclock.hpp"
      88             : #include "Parallel/PhaseControl/ExecutePhaseChange.hpp"
      89             : #include "Parallel/PhaseControl/Factory.hpp"
      90             : #include "Parallel/PhaseControl/VisitAndReturn.hpp"
      91             : #include "Parallel/PhaseDependentActionList.hpp"
      92             : #include "Parallel/Protocols/RegistrationMetavariables.hpp"
      93             : #include "Parallel/Reduction.hpp"
      94             : #include "ParallelAlgorithms/Actions/AddComputeTags.hpp"
      95             : #include "ParallelAlgorithms/Actions/FilterAction.hpp"
      96             : #include "ParallelAlgorithms/Actions/FunctionsOfTimeAreReady.hpp"
      97             : #include "ParallelAlgorithms/Actions/InitializeItems.hpp"
      98             : #include "ParallelAlgorithms/Actions/MemoryMonitor/ContributeMemoryData.hpp"
      99             : #include "ParallelAlgorithms/Actions/MutateApply.hpp"
     100             : #include "ParallelAlgorithms/Actions/TerminatePhase.hpp"
     101             : #include "ParallelAlgorithms/Amr/Actions/CollectDataFromChildren.hpp"
     102             : #include "ParallelAlgorithms/Amr/Actions/Component.hpp"
     103             : #include "ParallelAlgorithms/Amr/Actions/CreateChild.hpp"
     104             : #include "ParallelAlgorithms/Amr/Actions/Initialize.hpp"
     105             : #include "ParallelAlgorithms/Amr/Actions/SendAmrDiagnostics.hpp"
     106             : #include "ParallelAlgorithms/Amr/Criteria/Constraints.hpp"
     107             : #include "ParallelAlgorithms/Amr/Criteria/Criterion.hpp"
     108             : #include "ParallelAlgorithms/Amr/Criteria/Factory.hpp"
     109             : #include "ParallelAlgorithms/Amr/Events/ObserveAmrCriteria.hpp"
     110             : #include "ParallelAlgorithms/Amr/Events/ObserveAmrStats.hpp"
     111             : #include "ParallelAlgorithms/Amr/Events/RefineMesh.hpp"
     112             : #include "ParallelAlgorithms/Amr/Projectors/CopyFromCreatorOrLeaveAsIs.hpp"
     113             : #include "ParallelAlgorithms/Amr/Projectors/DefaultInitialize.hpp"
     114             : #include "ParallelAlgorithms/Amr/Projectors/Tensors.hpp"
     115             : #include "ParallelAlgorithms/Amr/Projectors/Variables.hpp"
     116             : #include "ParallelAlgorithms/Amr/Protocols/AmrMetavariables.hpp"
     117             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/ErrorOnFailedApparentHorizon.hpp"
     118             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/FailedHorizonFind.hpp"
     119             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/FindApparentHorizon.hpp"
     120             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/IgnoreFailedApparentHorizon.hpp"
     121             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/ObserveCenters.hpp"
     122             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/ObserveFieldsOnHorizon.hpp"
     123             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/ObserveTimeSeriesOnHorizon.hpp"
     124             : #include "ParallelAlgorithms/ApparentHorizonFinder/Callbacks/SendDependencyToObserverWriter.hpp"
     125             : #include "ParallelAlgorithms/ApparentHorizonFinder/Component.hpp"
     126             : #include "ParallelAlgorithms/ApparentHorizonFinder/ComputeExcisionBoundaryVolumeQuantities.hpp"
     127             : #include "ParallelAlgorithms/ApparentHorizonFinder/ComputeExcisionBoundaryVolumeQuantities.tpp"
     128             : #include "ParallelAlgorithms/ApparentHorizonFinder/ComputeHorizonVolumeQuantities.hpp"
     129             : #include "ParallelAlgorithms/ApparentHorizonFinder/ComputeHorizonVolumeQuantities.tpp"
     130             : #include "ParallelAlgorithms/ApparentHorizonFinder/Criteria/Criterion.hpp"
     131             : #include "ParallelAlgorithms/ApparentHorizonFinder/Criteria/Factory.hpp"
     132             : #include "ParallelAlgorithms/ApparentHorizonFinder/Destination.hpp"
     133             : #include "ParallelAlgorithms/ApparentHorizonFinder/Events/FindApparentHorizon.hpp"
     134             : #include "ParallelAlgorithms/ApparentHorizonFinder/Events/FindCommonHorizon.hpp"
     135             : #include "ParallelAlgorithms/ApparentHorizonFinder/HorizonAliases.hpp"
     136             : #include "ParallelAlgorithms/ApparentHorizonFinder/InterpolationTarget.hpp"
     137             : #include "ParallelAlgorithms/ApparentHorizonFinder/Protocols/HorizonMetavars.hpp"
     138             : #include "ParallelAlgorithms/ApparentHorizonFinder/Tags.hpp"
     139             : #include "ParallelAlgorithms/Events/Completion.hpp"
     140             : #include "ParallelAlgorithms/Events/Factory.hpp"
     141             : #include "ParallelAlgorithms/Events/MonitorMemory.hpp"
     142             : #include "ParallelAlgorithms/Events/ObserveTimeStepVolume.hpp"
     143             : #include "ParallelAlgorithms/EventsAndDenseTriggers/DenseTrigger.hpp"
     144             : #include "ParallelAlgorithms/EventsAndDenseTriggers/DenseTriggers/Factory.hpp"
     145             : #include "ParallelAlgorithms/EventsAndTriggers/Actions/RunEventsOnFailure.hpp"
     146             : #include "ParallelAlgorithms/EventsAndTriggers/Event.hpp"
     147             : #include "ParallelAlgorithms/EventsAndTriggers/EventsAndTriggers.hpp"
     148             : #include "ParallelAlgorithms/EventsAndTriggers/LogicalTriggers.hpp"
     149             : #include "ParallelAlgorithms/EventsAndTriggers/Trigger.hpp"
     150             : #include "ParallelAlgorithms/Interpolation/Actions/CleanUpInterpolator.hpp"
     151             : #include "ParallelAlgorithms/Interpolation/Actions/ElementInitInterpPoints.hpp"
     152             : #include "ParallelAlgorithms/Interpolation/Actions/InitializeInterpolationTarget.hpp"
     153             : #include "ParallelAlgorithms/Interpolation/Actions/InterpolationTargetReceiveVars.hpp"
     154             : #include "ParallelAlgorithms/Interpolation/Actions/InterpolatorReceivePoints.hpp"
     155             : #include "ParallelAlgorithms/Interpolation/Actions/InterpolatorReceiveVolumeData.hpp"
     156             : #include "ParallelAlgorithms/Interpolation/Actions/InterpolatorRegisterElement.hpp"
     157             : #include "ParallelAlgorithms/Interpolation/Actions/TryToInterpolate.hpp"
     158             : #include "ParallelAlgorithms/Interpolation/Callbacks/ObserveSurfaceData.hpp"
     159             : #include "ParallelAlgorithms/Interpolation/Callbacks/ObserveTimeSeriesOnSurface.hpp"
     160             : #include "ParallelAlgorithms/Interpolation/Events/Interpolate.hpp"
     161             : #include "ParallelAlgorithms/Interpolation/Events/InterpolateWithoutInterpComponent.hpp"
     162             : #include "ParallelAlgorithms/Interpolation/InterpolationTarget.hpp"
     163             : #include "ParallelAlgorithms/Interpolation/Interpolator.hpp"
     164             : #include "ParallelAlgorithms/Interpolation/Protocols/InterpolationTargetTag.hpp"
     165             : #include "ParallelAlgorithms/Interpolation/Tags.hpp"
     166             : #include "ParallelAlgorithms/Interpolation/Targets/Sphere.hpp"
     167             : #include "PointwiseFunctions/GeneralRelativity/Christoffel.hpp"
     168             : #include "PointwiseFunctions/GeneralRelativity/DerivativeSpatialMetric.hpp"
     169             : #include "PointwiseFunctions/GeneralRelativity/DetAndInverseSpatialMetric.hpp"
     170             : #include "PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic/ConstraintGammas.hpp"
     171             : #include "PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic/DerivSpatialMetric.hpp"
     172             : #include "PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic/ExtrinsicCurvature.hpp"
     173             : #include "PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic/SpatialDerivOfLapse.hpp"
     174             : #include "PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic/SpatialDerivOfShift.hpp"
     175             : #include "PointwiseFunctions/GeneralRelativity/Psi4Real.hpp"
     176             : #include "PointwiseFunctions/GeneralRelativity/Ricci.hpp"
     177             : #include "PointwiseFunctions/GeneralRelativity/Surfaces/Tags.hpp"
     178             : #include "PointwiseFunctions/GeneralRelativity/Tags.hpp"
     179             : #include "PointwiseFunctions/GeneralRelativity/WeylElectric.hpp"
     180             : #include "PointwiseFunctions/GeneralRelativity/WeylTypeD1.hpp"
     181             : #include "PointwiseFunctions/InitialDataUtilities/InitialData.hpp"
     182             : #include "Time/Actions/SelfStartActions.hpp"
     183             : #include "Time/AdvanceTime.hpp"
     184             : #include "Time/ChangeSlabSize/Action.hpp"
     185             : #include "Time/ChangeSlabSize/Tags.hpp"
     186             : #include "Time/ChangeTimeStepperOrder.hpp"
     187             : #include "Time/CleanHistory.hpp"
     188             : #include "Time/RecordTimeStepperData.hpp"
     189             : #include "Time/StepChoosers/Factory.hpp"
     190             : #include "Time/StepChoosers/StepChooser.hpp"
     191             : #include "Time/Tags/StepperErrors.hpp"
     192             : #include "Time/Tags/Time.hpp"
     193             : #include "Time/Tags/TimeStepId.hpp"
     194             : #include "Time/TimeSequence.hpp"
     195             : #include "Time/TimeSteppers/Factory.hpp"
     196             : #include "Time/TimeSteppers/LtsTimeStepper.hpp"
     197             : #include "Time/TimeSteppers/TimeStepper.hpp"
     198             : #include "Time/Triggers/TimeTriggers.hpp"
     199             : #include "Time/UpdateU.hpp"
     200             : #include "Utilities/Algorithm.hpp"
     201             : #include "Utilities/ErrorHandling/Error.hpp"
     202             : #include "Utilities/Functional.hpp"
     203             : #include "Utilities/GetOutput.hpp"
     204             : #include "Utilities/NoSuchType.hpp"
     205             : #include "Utilities/ProtocolHelpers.hpp"
     206             : #include "Utilities/TMPL.hpp"
     207             : 
     208             : // Check if SpEC is linked and therefore we can load SpEC initial data
     209             : #ifdef HAS_SPEC_EXPORTER
     210             : #include "PointwiseFunctions/AnalyticData/GeneralRelativity/SpecInitialData.hpp"
     211             : using SpecInitialData = gr::AnalyticData::SpecInitialData;
     212             : #else
     213           0 : using SpecInitialData = NoSuchType;
     214             : #endif
     215             : 
     216             : /// \cond
     217             : namespace Frame {
     218             : 
     219             : struct Inertial;
     220             : }  // namespace Frame
     221             : namespace PUP {
     222             : class er;
     223             : }  // namespace PUP
     224             : namespace Parallel {
     225             : template <typename Metavariables>
     226             : class CProxy_GlobalCache;
     227             : }  // namespace Parallel
     228             : /// \endcond
     229             : 
     230             : // Note: this executable does not use GeneralizedHarmonicBase.hpp, because
     231             : // using it would require a number of changes in GeneralizedHarmonicBase.hpp
     232             : // that would apply only when evolving binary black holes. This would
     233             : // require adding a number of compile-time switches, an outcome we would prefer
     234             : // to avoid.
     235             : struct EvolutionMetavars {
     236             :   struct BondiSachs;
     237             : 
     238             :   static constexpr size_t volume_dim = 3;
     239           0 :   static constexpr bool use_damped_harmonic_rollon = false;
     240           0 :   using system = gh::System<volume_dim>;
     241           0 :   using temporal_id = Tags::TimeStepId;
     242           0 :   using TimeStepperBase = LtsTimeStepper;
     243             : 
     244             :   static constexpr bool local_time_stepping =
     245             :       TimeStepperBase::local_time_stepping;
     246             :   static constexpr bool use_dg_element_collection = false;
     247             : 
     248           0 :   using initialize_initial_data_dependent_quantities_actions =
     249             :       tmpl::list<gh::gauges::SetPiAndPhiFromConstraints<
     250             :                      gh::Solutions::all_solutions<volume_dim>, volume_dim>,
     251             :                  Parallel::Actions::TerminatePhase>;
     252             : 
     253             :   // NOLINTNEXTLINE(google-runtime-references)
     254           0 :   void pup(PUP::er& /*p*/) {}
     255             : 
     256             :   template <::domain::ObjectLabel Horizon, typename Frame>
     257           0 :   struct Ah : tt::ConformsTo<ah::protocols::HorizonMetavars> {
     258           0 :     static constexpr size_t index = 10 + static_cast<size_t>(Horizon);
     259             : 
     260           0 :     using time_tag = ah::Tags::ObservationTime<index>;
     261             : 
     262           0 :     using frame = Frame;
     263             : 
     264           0 :     using horizon_find_callbacks = tmpl::append<
     265             :         tmpl::conditional_t<
     266             :             Horizon == ::domain::ObjectLabel::C,
     267             :             tmpl::list<ah::callbacks::SendDependencyToObserverWriter<Ah, true>>,
     268             :             tmpl::list<>>,
     269             :         tmpl::list<ah::callbacks::ObserveFieldsOnHorizon<
     270             :                        ::ah::surface_tags_for_observing, Ah>,
     271             :                    ah::callbacks::ObserveTimeSeriesOnHorizon<
     272             :                        ::ah::tags_for_observing<Frame>, Ah>>>;
     273           0 :     using horizon_find_failure_callbacks = tmpl::append<
     274             :         // Only ignore errors for AhC
     275             :         tmpl::list<ah::callbacks::FailedHorizonFind<
     276             :             Ah, Horizon == ::domain::ObjectLabel::C>>,
     277             :         tmpl::conditional_t<
     278             :             Horizon == ::domain::ObjectLabel::C,
     279             :             tmpl::list<
     280             :                 ah::callbacks::SendDependencyToObserverWriter<Ah, false>>,
     281             :             tmpl::list<>>>;
     282             : 
     283           0 :     using compute_tags_on_element =
     284             :         tmpl::list<ah::Tags::ObservationTimeCompute<index>>;
     285             : 
     286           0 :     static constexpr ah::Destination destination = ah::Destination::Observation;
     287             : 
     288           0 :     static std::string name() {
     289             :       return "ObservationAh" + ::domain::name(Horizon);
     290             :     }
     291             :   };
     292             : 
     293           0 :   using AhA = Ah<::domain::ObjectLabel::A, ::Frame::Distorted>;
     294           0 :   using AhB = Ah<::domain::ObjectLabel::B, ::Frame::Distorted>;
     295           0 :   using AhC = Ah<::domain::ObjectLabel::C, ::Frame::Inertial>;
     296             : 
     297             :   template <::domain::ObjectLabel Excision>
     298           0 :   struct ExcisionBoundary
     299             :       : tt::ConformsTo<intrp::protocols::InterpolationTargetTag> {
     300           0 :     using temporal_id = ::Tags::Time;
     301           0 :     using tags_to_observe =
     302             :         tmpl::list<gr::Tags::Lapse<DataVector>,
     303             :                    gr::Tags::Shift<DataVector, 3, Frame::Grid>>;
     304           0 :     using compute_vars_to_interpolate =
     305             :         ah::ComputeExcisionBoundaryVolumeQuantities;
     306           0 :     using vars_to_interpolate_to_target = tags_to_observe;
     307           0 :     using compute_items_on_source = tmpl::list<>;
     308           0 :     using compute_items_on_target = tmpl::list<>;
     309           0 :     using compute_target_points =
     310             :         intrp::TargetPoints::Sphere<ExcisionBoundary<Excision>, ::Frame::Grid>;
     311           0 :     using post_interpolation_callbacks =
     312             :         tmpl::list<intrp::callbacks::ObserveSurfaceData<
     313             :             tags_to_observe, ExcisionBoundary<Excision>, ::Frame::Grid>>;
     314             :     // run_callbacks
     315             :     template <typename metavariables>
     316           0 :     using interpolating_component = typename metavariables::gh_dg_element_array;
     317           0 :     static std::string name() {
     318             :       return "ObservationExcisionBoundary" + ::domain::name(Excision);
     319             :     }
     320             :   };
     321             : 
     322           0 :   using ExcisionBoundaryA = ExcisionBoundary<::domain::ObjectLabel::A>;
     323           0 :   using ExcisionBoundaryB = ExcisionBoundary<::domain::ObjectLabel::B>;
     324           0 :   using both_horizons = control_system::measurements::BothHorizons;
     325           0 :   using control_systems =
     326             :       tmpl::list<control_system::Systems::Rotation<3, both_horizons>,
     327             :                  control_system::Systems::Expansion<2, both_horizons>,
     328             :                  control_system::Systems::Translation<2, both_horizons, 2>,
     329             :                  control_system::Systems::Skew<2, both_horizons>,
     330             :                  control_system::Systems::Shape<::domain::ObjectLabel::A, 2,
     331             :                                                 both_horizons>,
     332             :                  control_system::Systems::Shape<::domain::ObjectLabel::B, 2,
     333             :                                                 both_horizons>,
     334             :                  control_system::Systems::Size<::domain::ObjectLabel::A, 2>,
     335             :                  control_system::Systems::Size<::domain::ObjectLabel::B, 2>>;
     336             : 
     337           0 :   static constexpr bool use_control_systems =
     338             :       tmpl::size<control_systems>::value > 0;
     339             : 
     340           0 :   using source_vars_no_deriv =
     341             :       tmpl::list<gr::Tags::SpacetimeMetric<DataVector, volume_dim>,
     342             :                  gh::Tags::Pi<DataVector, volume_dim>,
     343             :                  gh::Tags::Phi<DataVector, volume_dim>>;
     344             : 
     345           0 :   struct BondiSachs : tt::ConformsTo<intrp::protocols::InterpolationTargetTag> {
     346           0 :     static std::string name() { return "BondiSachsInterpolation"; }
     347           0 :     using temporal_id = ::Tags::Time;
     348           0 :     using vars_to_interpolate_to_target = source_vars_no_deriv;
     349           0 :     using compute_target_points =
     350             :         intrp::TargetPoints::Sphere<BondiSachs, ::Frame::Inertial>;
     351           0 :     using post_interpolation_callbacks =
     352             :         tmpl::list<intrp::callbacks::DumpBondiSachsOnWorldtube<BondiSachs>>;
     353           0 :     using compute_items_on_target = tmpl::list<>;
     354             :     template <typename metavariables>
     355           0 :     using interpolating_component = typename metavariables::gh_dg_element_array;
     356             :   };
     357             : 
     358           0 :   using interpolation_target_tags = tmpl::push_back<
     359             :       control_system::metafunctions::interpolation_target_tags<control_systems>,
     360             :       BondiSachs, ExcisionBoundaryA, ExcisionBoundaryB>;
     361             : 
     362           0 :   using observe_fields = tmpl::append<
     363             :       tmpl::list<
     364             :           gr::Tags::SpacetimeMetric<DataVector, volume_dim>,
     365             :           gh::Tags::Pi<DataVector, volume_dim>,
     366             :           gh::Tags::Phi<DataVector, volume_dim>,
     367             :           gh::Tags::GaugeH<DataVector, volume_dim>,
     368             :           gh::Tags::SpacetimeDerivGaugeH<DataVector, volume_dim>,
     369             :           gr::Tags::Lapse<DataVector>, gr::Tags::Shift<DataVector, volume_dim>,
     370             :           gr::Tags::SpatialMetric<DataVector, volume_dim>,
     371             :           gr::Tags::DetSpatialMetric<DataVector>,
     372             :           gr::Tags::InverseSpatialMetric<DataVector, volume_dim>,
     373             :           gr::Tags::SqrtDetSpatialMetricCompute<DataVector, volume_dim,
     374             :                                                 ::Frame::Inertial>,
     375             :           gr::Tags::SpacetimeNormalOneFormCompute<DataVector, volume_dim,
     376             :                                                   ::Frame::Inertial>,
     377             :           gr::Tags::SpacetimeNormalVectorCompute<DataVector, volume_dim,
     378             :                                                  ::Frame::Inertial>,
     379             :           gr::Tags::InverseSpacetimeMetricCompute<DataVector, volume_dim,
     380             :                                                   ::Frame::Inertial>,
     381             :           gh::Tags::DerivLapseCompute<volume_dim, Frame::Inertial>,
     382             :           gh::Tags::DerivShiftCompute<volume_dim, Frame::Inertial>,
     383             :           gh::Tags::DerivSpatialMetricCompute<volume_dim, Frame::Inertial>,
     384             :           gr::Tags::DerivInverseSpatialMetricCompute<volume_dim,
     385             :                                                      Frame::Inertial>,
     386             :           gh::Tags::GaugeConstraintCompute<volume_dim, ::Frame::Inertial>,
     387             :           gh::Tags::TwoIndexConstraintCompute<volume_dim, ::Frame::Inertial>,
     388             :           gh::Tags::ThreeIndexConstraintCompute<volume_dim, ::Frame::Inertial>,
     389             :           gh::Tags::DerivSpatialMetricCompute<volume_dim, ::Frame::Inertial>,
     390             :           gr::Tags::SpatialChristoffelFirstKindCompute<DataVector, volume_dim,
     391             :                                                        ::Frame::Inertial>,
     392             :           gr::Tags::SpatialChristoffelSecondKindCompute<DataVector, volume_dim,
     393             :                                                         ::Frame::Inertial>,
     394             :           ::Tags::DerivTensorCompute<
     395             :               gr::Tags::SpatialChristoffelSecondKind<DataVector, volume_dim>,
     396             :               ::domain::Tags::InverseJacobian<volume_dim, Frame::ElementLogical,
     397             :                                               Frame::Inertial>,
     398             :               ::domain::Tags::Mesh<volume_dim>>,
     399             :           gr::Tags::SpatialRicciCompute<DataVector, volume_dim,
     400             :                                         ::Frame::Inertial>,
     401             :           gr::Tags::SpatialRicciScalarCompute<DataVector, volume_dim,
     402             :                                               ::Frame::Inertial>,
     403             :           // observe norms of tensors
     404             :           ::Tags::PointwiseL2NormCompute<
     405             :               gr::Tags::Shift<DataVector, volume_dim>>,
     406             :           ::Tags::PointwiseL2NormCompute<
     407             :               gr::Tags::SpatialMetric<DataVector, volume_dim>>,
     408             :           ::Tags::PointwiseL2NormCompute<
     409             :               gr::Tags::SpacetimeMetric<DataVector, volume_dim>>,
     410             :           ::Tags::PointwiseL2NormCompute<gh::Tags::Pi<DataVector, volume_dim>>,
     411             :           ::Tags::PointwiseL2NormCompute<gh::Tags::Phi<DataVector, volume_dim>>,
     412             :           ::Tags::PointwiseL2NormCompute<
     413             :               gh::Tags::GaugeH<DataVector, volume_dim>>,
     414             :           ::Tags::PointwiseL2NormCompute<
     415             :               gh::Tags::SpacetimeDerivGaugeH<DataVector, volume_dim>>,
     416             :           // following tags added to observe constraints
     417             :           ::Tags::PointwiseL2NormCompute<
     418             :               gh::Tags::GaugeConstraint<DataVector, volume_dim>>,
     419             :           ::Tags::PointwiseL2NormCompute<
     420             :               gh::Tags::TwoIndexConstraint<DataVector, volume_dim>>,
     421             :           ::Tags::PointwiseL2NormCompute<
     422             :               gh::Tags::ThreeIndexConstraint<DataVector, volume_dim>>,
     423             :           ::domain::Tags::Coordinates<volume_dim, Frame::Grid>,
     424             :           ::domain::Tags::Coordinates<volume_dim, Frame::Inertial>>,
     425             :       // The 4-index constraint is only implemented in 3d
     426             :       tmpl::conditional_t<
     427             :           volume_dim == 3,
     428             :           tmpl::list<
     429             :               gh::Tags::FourIndexConstraintCompute<3, ::Frame::Inertial>,
     430             :               gh::Tags::FConstraintCompute<3, ::Frame::Inertial>,
     431             :               ::Tags::PointwiseL2NormCompute<
     432             :                   gh::Tags::FConstraint<DataVector, 3>>,
     433             :               ::Tags::PointwiseL2NormCompute<
     434             :                   gh::Tags::FourIndexConstraint<DataVector, 3>>,
     435             :               gh::Tags::ConstraintEnergyCompute<3, ::Frame::Inertial>,
     436             :               gh::Tags::ExtrinsicCurvatureCompute<3, ::Frame::Inertial>,
     437             :               ::Tags::DerivTensorCompute<
     438             :                   gr::Tags::ExtrinsicCurvature<DataVector, 3>,
     439             :                   ::domain::Tags::InverseJacobian<
     440             :                       volume_dim, Frame::ElementLogical, Frame::Inertial>,
     441             :                   ::domain::Tags::Mesh<volume_dim>>,
     442             :               gr::Tags::WeylElectricCompute<DataVector, 3, Frame::Inertial>,
     443             :               gr::Tags::WeylElectricScalarCompute<DataVector, 3,
     444             :                                                   Frame::Inertial>,
     445             :               gr::Tags::WeylTypeD1Compute<DataVector, 3, Frame::Inertial>,
     446             :               gr::Tags::WeylTypeD1ScalarCompute<DataVector, 3, Frame::Inertial>,
     447             :               gr::Tags::Psi4RealCompute<Frame::Inertial>>,
     448             :           tmpl::list<>>>;
     449           0 :   using non_tensor_compute_tags = tmpl::list<
     450             :       ::Events::Tags::ObserverMeshCompute<volume_dim>,
     451             :       ::Events::Tags::ObserverCoordinatesCompute<volume_dim, Frame::Inertial>,
     452             :       ::Events::Tags::ObserverInverseJacobianCompute<
     453             :           volume_dim, Frame::ElementLogical, Frame::Inertial>,
     454             :       ::Events::Tags::ObserverJacobianCompute<volume_dim, Frame::ElementLogical,
     455             :                                               Frame::Inertial>,
     456             :       ::Events::Tags::ObserverDetInvJacobianCompute<Frame::ElementLogical,
     457             :                                                     Frame::Inertial>,
     458             :       ::Events::Tags::ObserverMeshVelocityCompute<volume_dim, Frame::Inertial>,
     459             :       gh::gauges::Tags::GaugeAndDerivativeCompute<
     460             :           volume_dim, gh::Solutions::all_solutions<volume_dim>>>;
     461             : 
     462             :   struct factory_creation
     463             :       : tt::ConformsTo<Options::protocols::FactoryCreation> {
     464           0 :     using factory_classes = tmpl::map<
     465             :         tmpl::pair<ah::Criterion, ah::Criteria::standard_criteria>,
     466             :         tmpl::pair<
     467             :             amr::Criterion,
     468             :             tmpl::push_back<
     469             :                 amr::Criteria::standard_criteria<
     470             :                     volume_dim, typename system::variables_tag::tags_list>,
     471             :                 amr::Criteria::Constraints<
     472             :                     volume_dim,
     473             :                     tmpl::list<gh::Tags::ThreeIndexConstraintCompute<
     474             :                         volume_dim, Frame::Inertial>>>>>,
     475             :         tmpl::pair<
     476             :             evolution::initial_data::InitialData,
     477             :             tmpl::flatten<tmpl::list<
     478             :                 gh::NumericInitialData,
     479             :                 tmpl::conditional_t<std::is_same_v<SpecInitialData, NoSuchType>,
     480             :                                     tmpl::list<>, SpecInitialData>>>>,
     481             :         tmpl::pair<DenseTrigger,
     482             :                    tmpl::flatten<tmpl::list<
     483             :                        control_system::control_system_triggers<control_systems>,
     484             :                        DenseTriggers::standard_dense_triggers>>>,
     485             :         tmpl::pair<
     486             :             DomainCreator<volume_dim>,
     487             :             tmpl::list<::domain::creators::BinaryCompactObject<false>,
     488             :                        ::domain::creators::CylindricalBinaryCompactObject>>,
     489             :         tmpl::pair<Event,
     490             :                    tmpl::flatten<tmpl::list<
     491             :                        ah::Events::FindApparentHorizon<AhA>,
     492             :                        ah::Events::FindApparentHorizon<AhB>,
     493             :                        ah::Events::FindCommonHorizon<AhC, observe_fields,
     494             :                                                      non_tensor_compute_tags>,
     495             :                        intrp::Events::InterpolateWithoutInterpComponent<
     496             :                            3, BondiSachs, source_vars_no_deriv>,
     497             :                        intrp::Events::InterpolateWithoutInterpComponent<
     498             :                            3, ExcisionBoundaryA, ah::source_vars<3>>,
     499             :                        intrp::Events::InterpolateWithoutInterpComponent<
     500             :                            3, ExcisionBoundaryB, ah::source_vars<3>>,
     501             :                        Events::MonitorMemory<3>, Events::Completion,
     502             :                        dg::Events::field_observations<
     503             :                            volume_dim, observe_fields, non_tensor_compute_tags>,
     504             :                        control_system::metafunctions::control_system_events<
     505             :                            control_systems>,
     506             :                        control_system::CleanFunctionsOfTime,
     507             :                        Events::time_events<system>,
     508             :                        dg::Events::ObserveTimeStepVolume<system>,
     509             :                        amr::Events::RefineMesh,
     510             :                        amr::Events::ObserveAmrStats<volume_dim>,
     511             :                        amr::Events::ObserveAmrCriteria<EvolutionMetavars>>>>,
     512             :         tmpl::pair<
     513             :             evolution::BoundaryCorrection,
     514             :             gh::BoundaryCorrections::standard_boundary_corrections<volume_dim>>,
     515             :         tmpl::pair<control_system::size::State,
     516             :                    control_system::size::States::factory_creatable_states>,
     517             :         tmpl::pair<
     518             :             gh::BoundaryConditions::BoundaryCondition<volume_dim>,
     519             :             tmpl::list<
     520             :                 gh::BoundaryConditions::ConstraintPreservingBjorhus<volume_dim>,
     521             :                 gh::BoundaryConditions::DirichletMinkowski<volume_dim>,
     522             :                 gh::BoundaryConditions::DemandOutgoingCharSpeeds<volume_dim>>>,
     523             :         tmpl::pair<
     524             :             gh::gauges::GaugeCondition,
     525             :             tmpl::list<gh::gauges::DampedHarmonic, gh::gauges::Harmonic>>,
     526             :         // Restrict to monotonic time steppers in LTS to avoid control
     527             :         // systems deadlocking.
     528             :         tmpl::pair<LtsTimeStepper, TimeSteppers::monotonic_lts_time_steppers>,
     529             :         tmpl::pair<PhaseChange, PhaseControl::factory_creatable_classes>,
     530             :         tmpl::pair<StepChooser<StepChooserUse::LtsStep>,
     531             :                    StepChoosers::standard_step_choosers<system>>,
     532             :         tmpl::pair<
     533             :             StepChooser<StepChooserUse::Slab>,
     534             :             StepChoosers::standard_slab_choosers<system, local_time_stepping>>,
     535             :         tmpl::pair<TimeSequence<double>,
     536             :                    TimeSequences::all_time_sequences<double>>,
     537             :         tmpl::pair<TimeSequence<std::uint64_t>,
     538             :                    TimeSequences::all_time_sequences<std::uint64_t>>,
     539             :         tmpl::pair<TimeStepper, TimeSteppers::time_steppers>,
     540             :         tmpl::pair<
     541             :             Trigger,
     542             :             tmpl::append<Triggers::logical_triggers, Triggers::time_triggers,
     543             :                          tmpl::list<Triggers::SeparationLessThan<false>>>>>;
     544             :   };
     545             : 
     546             :   // A tmpl::list of tags to be added to the GlobalCache by the
     547             :   // metavariables
     548           0 :   using const_global_cache_tags =
     549             :       tmpl::list<gh::gauges::Tags::GaugeCondition,
     550             :                  gh::Tags::DampingFunctionGamma0<volume_dim, Frame::Grid>,
     551             :                  gh::Tags::DampingFunctionGamma1<volume_dim, Frame::Grid>,
     552             :                  gh::Tags::DampingFunctionGamma2<volume_dim, Frame::Grid>>;
     553             : 
     554           0 :   using dg_registration_list =
     555             :       tmpl::list<observers::Actions::RegisterEventsWithObservers>;
     556             : 
     557             :   static constexpr auto default_phase_order =
     558             :       std::array{Parallel::Phase::Initialization,
     559             :                  Parallel::Phase::RegisterWithElementDataReader,
     560             :                  Parallel::Phase::ImportInitialData,
     561             :                  Parallel::Phase::InitializeInitialDataDependentQuantities,
     562             :                  Parallel::Phase::Register,
     563             :                  Parallel::Phase::InitializeTimeStepperHistory,
     564             :                  Parallel::Phase::CheckDomain,
     565             :                  Parallel::Phase::Evolve,
     566             :                  Parallel::Phase::Exit};
     567             : 
     568           0 :   using step_actions = tmpl::list<
     569             :       evolution::dg::Actions::ComputeTimeDerivative<
     570             :           volume_dim, system, AllStepChoosers, local_time_stepping,
     571             :           use_dg_element_collection>,
     572             :       tmpl::conditional_t<
     573             :           local_time_stepping,
     574             :           tmpl::list<Actions::MutateApply<RecordTimeStepperData<system>>,
     575             :                      evolution::Actions::RunEventsAndDenseTriggers<tmpl::list<
     576             :                          ::domain::CheckFunctionsOfTimeAreReadyPostprocessor<
     577             :                              volume_dim>,
     578             :                          evolution::dg::ApplyBoundaryCorrections<
     579             :                              local_time_stepping, EvolutionMetavars, volume_dim,
     580             :                              true>>>,
     581             :                      Actions::MutateApply<UpdateU<system, local_time_stepping>>,
     582             :                      evolution::dg::Actions::ApplyLtsBoundaryCorrections<
     583             :                          volume_dim, false, use_dg_element_collection>,
     584             :                      Actions::MutateApply<ChangeTimeStepperOrder<system>>>,
     585             :           tmpl::list<
     586             :               evolution::dg::Actions::ApplyBoundaryCorrectionsToTimeDerivative<
     587             :                   volume_dim, use_dg_element_collection>,
     588             :               Actions::MutateApply<RecordTimeStepperData<system>>,
     589             :               evolution::Actions::RunEventsAndDenseTriggers<tmpl::list<
     590             :                   ::domain::CheckFunctionsOfTimeAreReadyPostprocessor<
     591             :                       volume_dim>>>,
     592             :               control_system::Actions::LimitTimeStep<control_systems>,
     593             :               Actions::MutateApply<UpdateU<system, local_time_stepping>>>>,
     594             :       Actions::MutateApply<CleanHistory<system>>,
     595             :       tmpl::conditional_t<
     596             :           local_time_stepping,
     597             :           Actions::MutateApply<evolution::dg::CleanMortarHistory<system>>,
     598             :           tmpl::list<>>,
     599             :       dg::Actions::Filter<
     600             :           Filters::Exponential<0>,
     601             :           tmpl::list<gr::Tags::SpacetimeMetric<DataVector, volume_dim>,
     602             :                      gh::Tags::Pi<DataVector, volume_dim>,
     603             :                      gh::Tags::Phi<DataVector, volume_dim>>>>;
     604             : 
     605           0 :   using initialization_actions = tmpl::list<
     606             :       Initialization::Actions::InitializeItems<
     607             :           Initialization::TimeStepping<EvolutionMetavars, TimeStepperBase>,
     608             :           evolution::dg::Initialization::Domain<EvolutionMetavars,
     609             :                                                 use_control_systems>,
     610             :           ::amr::Initialization::Initialize<volume_dim, EvolutionMetavars>,
     611             :           Initialization::TimeStepperHistory<EvolutionMetavars>>,
     612             :       Initialization::Actions::NonconservativeSystem<system>,
     613             :       Initialization::Actions::AddComputeTags<tmpl::list<::Tags::DerivCompute<
     614             :           typename system::variables_tag, ::domain::Tags::Mesh<volume_dim>,
     615             :           ::domain::Tags::InverseJacobian<volume_dim, Frame::ElementLogical,
     616             :                                           Frame::Inertial>,
     617             :           typename system::gradient_variables>>>,
     618             :       gh::Actions::InitializeGhAnd3Plus1Variables<volume_dim>,
     619             :       Initialization::Actions::AddComputeTags<
     620             :           tmpl::push_back<StepChoosers::step_chooser_compute_tags<
     621             :               EvolutionMetavars, local_time_stepping>>>,
     622             :       ::evolution::dg::Initialization::Mortars<volume_dim, system>,
     623             :       intrp::Actions::ElementInitInterpPoints<volume_dim,
     624             :                                               interpolation_target_tags>,
     625             :       evolution::Actions::InitializeRunEventsAndDenseTriggers,
     626             :       control_system::Actions::InitializeMeasurements<control_systems>,
     627             :       Parallel::Actions::TerminatePhase>;
     628             : 
     629           0 :   using gh_dg_element_array = DgElementArray<
     630             :       EvolutionMetavars,
     631             :       tmpl::flatten<tmpl::list<
     632             :           Parallel::PhaseActions<Parallel::Phase::Initialization,
     633             :                                  initialization_actions>,
     634             :           Parallel::PhaseActions<
     635             :               Parallel::Phase::RegisterWithElementDataReader,
     636             :               tmpl::list<importers::Actions::RegisterWithElementDataReader,
     637             :                          Parallel::Actions::TerminatePhase>>,
     638             :           Parallel::PhaseActions<
     639             :               Parallel::Phase::ImportInitialData,
     640             :               tmpl::list<gh::Actions::SetInitialData,
     641             :                          gh::Actions::ReceiveNumericInitialData,
     642             :                          Parallel::Actions::TerminatePhase>>,
     643             :           Parallel::PhaseActions<
     644             :               Parallel::Phase::InitializeInitialDataDependentQuantities,
     645             :               initialize_initial_data_dependent_quantities_actions>,
     646             :           Parallel::PhaseActions<Parallel::Phase::Register,
     647             :                                  tmpl::list<dg_registration_list,
     648             :                                             Parallel::Actions::TerminatePhase>>,
     649             :           Parallel::PhaseActions<Parallel::Phase::Restart,
     650             :                                  tmpl::list<dg_registration_list,
     651             :                                             Parallel::Actions::TerminatePhase>>,
     652             :           Parallel::PhaseActions<
     653             :               Parallel::Phase::WriteCheckpoint,
     654             :               tmpl::list<evolution::Actions::RunEventsAndTriggers<
     655             :                              Triggers::WhenToCheck::AtCheckpoints>,
     656             :                          Parallel::Actions::TerminatePhase>>,
     657             :           Parallel::PhaseActions<
     658             :               Parallel::Phase::InitializeTimeStepperHistory,
     659             :               SelfStart::self_start_procedure<step_actions, system>>,
     660             :           Parallel::PhaseActions<Parallel::Phase::CheckDomain,
     661             :                                  tmpl::list<::amr::Actions::SendAmrDiagnostics,
     662             :                                             Parallel::Actions::TerminatePhase>>,
     663             :           Parallel::PhaseActions<
     664             :               Parallel::Phase::Evolve,
     665             :               tmpl::flatten<tmpl::list<
     666             :                   ::domain::Actions::CheckFunctionsOfTimeAreReady<volume_dim>,
     667             :                   std::conditional_t<local_time_stepping,
     668             :                                      evolution::Actions::RunEventsAndTriggers<
     669             :                                          Triggers::WhenToCheck::AtSteps>,
     670             :                                      tmpl::list<>>,
     671             :                   evolution::Actions::RunEventsAndTriggers<
     672             :                       Triggers::WhenToCheck::AtSlabs>,
     673             :                   Actions::ChangeSlabSize, step_actions,
     674             :                   Actions::MutateApply<AdvanceTime<>>,
     675             :                   PhaseControl::Actions::ExecutePhaseChange>>>,
     676             :           Parallel::PhaseActions<
     677             :               Parallel::Phase::PostFailureCleanup,
     678             :               tmpl::list<Actions::RunEventsOnFailure<::Tags::Time>,
     679             :                          Parallel::Actions::TerminatePhase>>>>>;
     680             : 
     681           0 :   using observed_reduction_data_tags = observers::collect_reduction_data_tags<
     682             :       tmpl::at<typename factory_creation::factory_classes, Event>>;
     683             : 
     684             :   struct registration
     685             :       : tt::ConformsTo<Parallel::protocols::RegistrationMetavariables> {
     686           0 :     using element_registrars =
     687             :         tmpl::map<tmpl::pair<gh_dg_element_array, dg_registration_list>>;
     688             :   };
     689             : 
     690           0 :   using control_system_horizon_metavars =
     691             :       control_system::metafunctions::horizon_metavars<control_systems>;
     692           0 :   using control_components =
     693             :       control_system::control_components<EvolutionMetavars, control_systems>;
     694             : 
     695           0 :   static void run_deadlock_analysis_simple_actions(
     696             :       Parallel::GlobalCache<EvolutionMetavars>& cache,
     697             :       const std::vector<std::string>& deadlocked_components) {
     698             :     gh::deadlock::run_deadlock_analysis_simple_actions<
     699             :         gh_dg_element_array, control_components, interpolation_target_tags,
     700             :         control_system_horizon_metavars, false>(cache, deadlocked_components);
     701             :   }
     702             : 
     703           0 :   struct amr : tt::ConformsTo<::amr::protocols::AmrMetavariables> {
     704           0 :     using element_array = gh_dg_element_array;
     705           0 :     using projectors = tmpl::list<
     706             :         Initialization::ProjectTimeStepping<volume_dim>,
     707             :         evolution::dg::Initialization::ProjectDomain<volume_dim>,
     708             :         ::amr::projectors::ProjectVariables<volume_dim,
     709             :                                             typename system::variables_tag>,
     710             :         evolution::dg::Initialization::ProjectMortars<EvolutionMetavars>,
     711             :         Initialization::ProjectTimeStepperHistory<EvolutionMetavars>,
     712             :         evolution::Actions::ProjectRunEventsAndDenseTriggers,
     713             :         ::amr::projectors::DefaultInitialize<
     714             :             Initialization::Tags::InitialTimeDelta,
     715             :             Initialization::Tags::InitialSlabSize<local_time_stepping>,
     716             :             ::domain::Tags::InitialExtents<volume_dim>,
     717             :             ::domain::Tags::InitialRefinementLevels<volume_dim>,
     718             :             evolution::dg::Tags::Quadrature,
     719             :             Tags::StepperErrors<typename system::variables_tag>,
     720             :             SelfStart::Tags::InitialValue<typename system::variables_tag>,
     721             :             SelfStart::Tags::InitialValue<Tags::TimeStep>>,
     722             :         ::amr::projectors::CopyFromCreatorOrLeaveAsIs<tmpl::push_back<
     723             :             tmpl::append<
     724             :                 typename control_system::Actions::InitializeMeasurements<
     725             :                     control_systems>::simple_tags,
     726             :                 tmpl::transform<
     727             :                     intrp::InterpolationTarget_detail::
     728             :                         get_non_sequential_target_tags<
     729             :                             interpolation_target_tags>,
     730             :                     tmpl::bind<intrp::Tags::PointInfo, tmpl::_1,
     731             :                                tmpl::pin<tmpl::size_t<volume_dim>>>>>,
     732             :             Tags::ChangeSlabSize::NumberOfExpectedMessages,
     733             :             Tags::ChangeSlabSize::NewSlabSize>>>;
     734           0 :     static constexpr bool keep_coarse_grids = false;
     735           0 :     static constexpr bool p_refine_only_in_event = true;
     736             :   };
     737             : 
     738           0 :   using component_list = tmpl::flatten<tmpl::list<
     739             :       ::amr::Component<EvolutionMetavars>,
     740             :       observers::Observer<EvolutionMetavars>,
     741             :       observers::ObserverWriter<EvolutionMetavars>,
     742             :       importers::ElementDataReader<EvolutionMetavars>,
     743             :       mem_monitor::MemoryMonitor<EvolutionMetavars>,
     744             :       ah::Component<EvolutionMetavars, AhA>,
     745             :       ah::Component<EvolutionMetavars, AhB>,
     746             :       ah::Component<EvolutionMetavars, AhC>,
     747             :       tmpl::transform<
     748             :           control_system_horizon_metavars,
     749             :           tmpl::bind<ah::Component, tmpl::pin<EvolutionMetavars>, tmpl::_1>>,
     750             :       tmpl::transform<interpolation_target_tags,
     751             :                       tmpl::bind<intrp::InterpolationTarget,
     752             :                                  tmpl::pin<EvolutionMetavars>, tmpl::_1>>,
     753             :       control_system::control_components<EvolutionMetavars, control_systems>,
     754             :       gh_dg_element_array>>;
     755             : 
     756             :   static constexpr Options::String help{
     757             :       "Evolve a binary black hole using the Generalized Harmonic "
     758             :       "formulation\n"};
     759             : };

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