SpECTRE Documentation Coverage Report
Current view: top level - PointwiseFunctions/AnalyticSolutions/Xcts - TovStar.hpp Hit Total Coverage
Commit: f8ea4a52db6a7b766b531a9ef6054857b7453f1d Lines: 1 22 4.5 %
Date: 2024-05-03 17:20:07
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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 <limits>
       7             : #include <ostream>
       8             : 
       9             : #include "DataStructures/CachedTempBuffer.hpp"
      10             : #include "DataStructures/DataBox/Prefixes.hpp"
      11             : #include "DataStructures/DataVector.hpp"
      12             : #include "DataStructures/Tensor/Tensor.hpp"
      13             : #include "Elliptic/Systems/Xcts/Tags.hpp"
      14             : #include "NumericalAlgorithms/LinearOperators/PartialDerivatives.hpp"
      15             : #include "Options/String.hpp"
      16             : #include "PointwiseFunctions/AnalyticSolutions/RelativisticEuler/TovStar.hpp"
      17             : #include "PointwiseFunctions/AnalyticSolutions/Xcts/CommonVariables.hpp"
      18             : #include "PointwiseFunctions/GeneralRelativity/Tags.hpp"
      19             : #include "PointwiseFunctions/GeneralRelativity/Tags/Conformal.hpp"
      20             : #include "PointwiseFunctions/InitialDataUtilities/AnalyticSolution.hpp"
      21             : #include "Utilities/Gsl.hpp"
      22             : #include "Utilities/Serialization/CharmPupable.hpp"
      23             : #include "Utilities/TMPL.hpp"
      24             : #include "Utilities/TaggedTuple.hpp"
      25             : 
      26             : /// \cond
      27             : namespace PUP {
      28             : class er;
      29             : }  // namespace PUP
      30             : /// \endcond
      31             : 
      32             : namespace Xcts::Solutions {
      33             : namespace tov_detail {
      34             : 
      35             : using TovCoordinates = RelativisticEuler::Solutions::TovCoordinates;
      36             : 
      37             : template <typename DataType>
      38             : using TovVariablesCache = cached_temp_buffer_from_typelist<tmpl::push_back<
      39             :     common_tags<DataType>,
      40             :     ::Tags::deriv<gr::Tags::Lapse<DataType>, tmpl::size_t<3>, Frame::Inertial>,
      41             :     gr::Tags::Conformal<gr::Tags::EnergyDensity<DataType>, 0>,
      42             :     gr::Tags::Conformal<gr::Tags::StressTrace<DataType>, 0>,
      43             :     gr::Tags::Conformal<gr::Tags::MomentumDensity<DataType, 3>, 0>>>;
      44             : 
      45             : template <typename DataType>
      46             : struct TovVariables : CommonVariables<DataType, TovVariablesCache<DataType>> {
      47             :   static constexpr size_t Dim = 3;
      48             :   static constexpr int ConformalMatterScale = 0;
      49             :   using Cache = TovVariablesCache<DataType>;
      50             :   using Base = CommonVariables<DataType, TovVariablesCache<DataType>>;
      51             :   using Base::operator();
      52             : 
      53             :   const tnsr::I<DataType, 3>& x;
      54             :   const DataType& radius;
      55             :   const RelativisticEuler::Solutions::TovStar& tov_star;
      56             : 
      57             :   TovVariables(
      58             :       std::optional<std::reference_wrapper<const Mesh<Dim>>> local_mesh,
      59             :       std::optional<std::reference_wrapper<const InverseJacobian<
      60             :           DataType, Dim, Frame::ElementLogical, Frame::Inertial>>>
      61             :           local_inv_jacobian,
      62             :       const tnsr::I<DataType, 3>& local_x, const DataType& local_radius,
      63             :       const RelativisticEuler::Solutions::TovStar& local_tov_star)
      64             :       : Base(std::move(local_mesh), std::move(local_inv_jacobian)),
      65             :         x(local_x),
      66             :         radius(local_radius),
      67             :         tov_star(local_tov_star) {}
      68             : 
      69             :   void operator()(gsl::not_null<tnsr::ii<DataType, 3>*> conformal_metric,
      70             :                   gsl::not_null<Cache*> cache,
      71             :                   Tags::ConformalMetric<DataType, 3, Frame::Inertial> /*meta*/)
      72             :       const override;
      73             :   void operator()(
      74             :       gsl::not_null<tnsr::II<DataType, 3>*> inv_conformal_metric,
      75             :       gsl::not_null<Cache*> cache,
      76             :       Tags::InverseConformalMetric<DataType, 3, Frame::Inertial> /*meta*/)
      77             :       const override;
      78             :   void operator()(
      79             :       gsl::not_null<tnsr::ijj<DataType, 3>*> deriv_conformal_metric,
      80             :       gsl::not_null<Cache*> cache,
      81             :       ::Tags::deriv<Tags::ConformalMetric<DataType, 3, Frame::Inertial>,
      82             :                     tmpl::size_t<3>, Frame::Inertial> /*meta*/) const override;
      83             :   void operator()(
      84             :       gsl::not_null<tnsr::ii<DataType, 3>*> extrinsic_curvature,
      85             :       gsl::not_null<Cache*> cache,
      86             :       gr::Tags::ExtrinsicCurvature<DataType, 3> /*meta*/) const override;
      87             :   void operator()(
      88             :       gsl::not_null<Scalar<DataType>*> trace_extrinsic_curvature,
      89             :       gsl::not_null<Cache*> cache,
      90             :       gr::Tags::TraceExtrinsicCurvature<DataType> /*meta*/) const override;
      91             :   void operator()(
      92             :       gsl::not_null<tnsr::i<DataType, 3>*> deriv_trace_extrinsic_curvature,
      93             :       gsl::not_null<Cache*> cache,
      94             :       ::Tags::deriv<gr::Tags::TraceExtrinsicCurvature<DataType>,
      95             :                     tmpl::size_t<3>, Frame::Inertial> /*meta*/) const override;
      96             :   void operator()(
      97             :       gsl::not_null<Scalar<DataType>*> dt_trace_extrinsic_curvature,
      98             :       gsl::not_null<Cache*> cache,
      99             :       ::Tags::dt<gr::Tags::TraceExtrinsicCurvature<DataType>> /*meta*/)
     100             :       const override;
     101             :   void operator()(gsl::not_null<Scalar<DataType>*> conformal_factor,
     102             :                   gsl::not_null<Cache*> cache,
     103             :                   Tags::ConformalFactor<DataType> /*meta*/) const override;
     104             :   void operator()(
     105             :       gsl::not_null<Scalar<DataType>*> conformal_factor_minus_one,
     106             :       gsl::not_null<Cache*> cache,
     107             :       Tags::ConformalFactorMinusOne<DataType> /*meta*/) const override;
     108             :   void operator()(
     109             :       gsl::not_null<tnsr::i<DataType, 3>*> deriv_conformal_factor,
     110             :       gsl::not_null<Cache*> cache,
     111             :       ::Tags::deriv<Xcts::Tags::ConformalFactorMinusOne<DataType>,
     112             :                     tmpl::size_t<3>, Frame::Inertial> /*meta*/) const override;
     113             :   void operator()(gsl::not_null<Scalar<DataType>*> lapse,
     114             :                   gsl::not_null<Cache*> cache,
     115             :                   gr::Tags::Lapse<DataType> /*meta*/) const override;
     116             :   void operator()(gsl::not_null<tnsr::i<DataType, 3>*> deriv_lapse,
     117             :                   gsl::not_null<Cache*> cache,
     118             :                   ::Tags::deriv<gr::Tags::Lapse<DataType>, tmpl::size_t<3>,
     119             :                                 Frame::Inertial> /*meta*/) const;
     120             :   void operator()(
     121             :       gsl::not_null<Scalar<DataType>*> lapse_times_conformal_factor,
     122             :       gsl::not_null<Cache*> cache,
     123             :       Tags::LapseTimesConformalFactor<DataType> /*meta*/) const override;
     124             :   void operator()(
     125             :       gsl::not_null<Scalar<DataType>*> lapse_times_conformal_factor_minus_one,
     126             :       gsl::not_null<Cache*> cache,
     127             :       Tags::LapseTimesConformalFactorMinusOne<DataType> /*meta*/)
     128             :       const override;
     129             :   void operator()(
     130             :       gsl::not_null<tnsr::i<DataType, 3>*> deriv_lapse_times_conformal_factor,
     131             :       gsl::not_null<Cache*> cache,
     132             :       ::Tags::deriv<Tags::LapseTimesConformalFactorMinusOne<DataType>,
     133             :                     tmpl::size_t<3>, Frame::Inertial> /*meta*/) const override;
     134             :   void operator()(gsl::not_null<tnsr::I<DataType, 3>*> shift_background,
     135             :                   gsl::not_null<Cache*> cache,
     136             :                   Tags::ShiftBackground<DataType, 3, Frame::Inertial> /*meta*/)
     137             :       const override;
     138             :   void operator()(gsl::not_null<tnsr::II<DataType, 3, Frame::Inertial>*>
     139             :                       longitudinal_shift_background_minus_dt_conformal_metric,
     140             :                   gsl::not_null<Cache*> cache,
     141             :                   Tags::LongitudinalShiftBackgroundMinusDtConformalMetric<
     142             :                       DataType, 3, Frame::Inertial> /*meta*/) const override;
     143             :   void operator()(
     144             :       gsl::not_null<tnsr::I<DataType, 3>*> shift_excess,
     145             :       gsl::not_null<Cache*> cache,
     146             :       Tags::ShiftExcess<DataType, 3, Frame::Inertial> /*meta*/) const override;
     147             :   void operator()(
     148             :       gsl::not_null<tnsr::iJ<DataType, 3>*> deriv_shift_excess,
     149             :       gsl::not_null<Cache*> cache,
     150             :       ::Tags::deriv<Tags::ShiftExcess<DataType, 3, Frame::Inertial>,
     151             :                     tmpl::size_t<3>, Frame::Inertial> /*meta*/) const override;
     152             :   void operator()(gsl::not_null<Scalar<DataType>*> energy_density,
     153             :                   gsl::not_null<Cache*> cache,
     154             :                   gr::Tags::Conformal<gr::Tags::EnergyDensity<DataType>,
     155             :                                       ConformalMatterScale> /*meta*/) const;
     156             :   void operator()(gsl::not_null<Scalar<DataType>*> stress_trace,
     157             :                   gsl::not_null<Cache*> cache,
     158             :                   gr::Tags::Conformal<gr::Tags::StressTrace<DataType>,
     159             :                                       ConformalMatterScale> /*meta*/) const;
     160             :   void operator()(gsl::not_null<tnsr::I<DataType, 3>*> momentum_density,
     161             :                   gsl::not_null<Cache*> cache,
     162             :                   gr::Tags::Conformal<gr::Tags::MomentumDensity<DataType, 3>,
     163             :                                       ConformalMatterScale> /*meta*/) const;
     164             : 
     165             :  private:
     166             :   template <typename Tag>
     167             :   typename Tag::type get_tov_var(Tag /*meta*/) const {
     168             :     // Possible optimization: Access the cache of the RelEuler::TovStar solution
     169             :     // so its intermediate quantities don't have to be re-computed repeatedly
     170             :     return get<Tag>(tov_star.variables(
     171             :         x, std::numeric_limits<double>::signaling_NaN(), tmpl::list<Tag>{}));
     172             :   }
     173             : };
     174             : 
     175             : }  // namespace tov_detail
     176             : 
     177             : /*!
     178             :  * \brief TOV solution to the XCTS equations
     179             :  *
     180             :  * \see RelativisticEuler::Solutions::TovStar
     181             :  * \see gr::Solutions::TovSolution
     182             :  */
     183           1 : class TovStar : public elliptic::analytic_data::AnalyticSolution {
     184             :  private:
     185           0 :   using RelEulerTovStar = RelativisticEuler::Solutions::TovStar;
     186             : 
     187             :  public:
     188           0 :   using options = RelEulerTovStar::options;
     189           0 :   static constexpr Options::String help = RelEulerTovStar::help;
     190             : 
     191           0 :   TovStar() = default;
     192           0 :   TovStar(const TovStar&) = default;
     193           0 :   TovStar& operator=(const TovStar&) = default;
     194           0 :   TovStar(TovStar&&) = default;
     195           0 :   TovStar& operator=(TovStar&&) = default;
     196           0 :   ~TovStar() = default;
     197             : 
     198           0 :   TovStar(double central_rest_mass_density,
     199             :           std::unique_ptr<EquationsOfState::EquationOfState<true, 1>>
     200             :               equation_of_state,
     201             :           const RelativisticEuler::Solutions::TovCoordinates coordinate_system)
     202             :       : tov_star(central_rest_mass_density, std::move(equation_of_state),
     203             :                  coordinate_system) {}
     204             : 
     205           0 :   const EquationsOfState::EquationOfState<true, 1>& equation_of_state() const {
     206             :     return tov_star.equation_of_state();
     207             :   }
     208             : 
     209           0 :   const RelativisticEuler::Solutions::TovSolution& radial_solution() const {
     210             :     return tov_star.radial_solution();
     211             :   }
     212             : 
     213             :   /// \cond
     214             :   explicit TovStar(CkMigrateMessage* m)
     215             :       : elliptic::analytic_data::AnalyticSolution(m) {}
     216             :   using PUP::able::register_constructor;
     217             :   WRAPPED_PUPable_decl_template(TovStar);
     218             :   std::unique_ptr<elliptic::analytic_data::AnalyticSolution> get_clone()
     219             :       const override {
     220             :     return std::make_unique<TovStar>(*this);
     221             :   }
     222             :   /// \endcond
     223             : 
     224             :   template <typename DataType>
     225           0 :   using tags = typename tov_detail::TovVariablesCache<DataType>::tags_list;
     226             : 
     227             :   template <typename DataType, typename... RequestedTags>
     228           0 :   tuples::TaggedTuple<RequestedTags...> variables(
     229             :       const tnsr::I<DataType, 3, Frame::Inertial>& x,
     230             :       tmpl::list<RequestedTags...> /*meta*/) const {
     231             :     return variables_impl<DataType>(x, std::nullopt, std::nullopt,
     232             :                                     tmpl::list<RequestedTags...>{});
     233             :   }
     234             : 
     235             :   template <typename... RequestedTags>
     236           0 :   tuples::TaggedTuple<RequestedTags...> variables(
     237             :       const tnsr::I<DataVector, 3, Frame::Inertial>& x, const Mesh<3>& mesh,
     238             :       const InverseJacobian<DataVector, 3, Frame::ElementLogical,
     239             :                             Frame::Inertial>& inv_jacobian,
     240             :       tmpl::list<RequestedTags...> /*meta*/) const {
     241             :     return variables_impl<DataVector>(x, mesh, inv_jacobian,
     242             :                                       tmpl::list<RequestedTags...>{});
     243             :   }
     244             : 
     245             :   // NOLINTNEXTLINE(google-runtime-references)
     246           0 :   void pup(PUP::er& p) override {
     247             :     elliptic::analytic_data::AnalyticSolution::pup(p);
     248             :     p | tov_star;
     249             :   }
     250             : 
     251             :  private:
     252             :   template <typename DataType, typename... RequestedTags>
     253           0 :   tuples::TaggedTuple<RequestedTags...> variables_impl(
     254             :       const tnsr::I<DataType, 3, Frame::Inertial>& x,
     255             :       std::optional<std::reference_wrapper<const Mesh<3>>> mesh,
     256             :       std::optional<std::reference_wrapper<const InverseJacobian<
     257             :           DataType, 3, Frame::ElementLogical, Frame::Inertial>>>
     258             :           inv_jacobian,
     259             :       tmpl::list<RequestedTags...> /*meta*/) const {
     260             :     using VarsComputer = tov_detail::TovVariables<DataType>;
     261             :     typename VarsComputer::Cache cache{get_size(*x.begin())};
     262             :     const DataType radius = get(magnitude(x));
     263             :     const VarsComputer computer{std::move(mesh), std::move(inv_jacobian), x,
     264             :                                 radius, tov_star};
     265             :     using unrequested_hydro_tags =
     266             :         tmpl::list_difference<hydro_tags<DataType>,
     267             :                               tmpl::list<RequestedTags...>>;
     268             :     using requested_hydro_tags =
     269             :         tmpl::list_difference<hydro_tags<DataType>, unrequested_hydro_tags>;
     270             :     tuples::tagged_tuple_from_typelist<requested_hydro_tags> hydro_vars;
     271             :     if constexpr (not std::is_same_v<requested_hydro_tags, tmpl::list<>>) {
     272             :       hydro_vars =
     273             :           tov_star.variables(x, std::numeric_limits<double>::signaling_NaN(),
     274             :                              requested_hydro_tags{});
     275             :     }
     276             :     const auto get_var = [&cache, &computer, &hydro_vars](auto tag_v) {
     277             :       using tag = std::decay_t<decltype(tag_v)>;
     278             :       if constexpr (tmpl::list_contains_v<hydro_tags<DataType>, tag>) {
     279             :         (void)cache;
     280             :         (void)computer;
     281             :         return get<tag>(hydro_vars);
     282             :       } else {
     283             :         (void)hydro_vars;
     284             :         return cache.get_var(computer, tag{});
     285             :       }
     286             :     };
     287             :     return {get_var(RequestedTags{})...};
     288             :   }
     289             : 
     290           0 :   friend bool operator==(const TovStar& lhs, const TovStar& rhs) {
     291             :     return lhs.tov_star == rhs.tov_star;
     292             :   }
     293             : 
     294             :   // Instead of inheriting from the RelEuler::TovStar we use an aggregate
     295             :   // pattern to avoid multiple-inheritance issues.
     296           0 :   RelativisticEuler::Solutions::TovStar tov_star{};
     297             : };
     298             : 
     299           0 : inline bool operator!=(const TovStar& lhs, const TovStar& rhs) {
     300             :   return not(lhs == rhs);
     301             : }
     302             : 
     303             : }  // namespace Xcts::Solutions

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