Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <cstddef>
       7             : 
       8             : #include "DataStructures/Tensor/TypeAliases.hpp"
       9             : #include "Evolution/Systems/GeneralizedHarmonic/ConstraintDamping/Tags.hpp"
      10             : #include "Evolution/Systems/GeneralizedHarmonic/Tags.hpp"
      11             : #include "ParallelAlgorithms/Interpolation/Protocols/ComputeVarsToInterpolate.hpp"
      12             : #include "PointwiseFunctions/GeneralRelativity/Tags.hpp"
      13             : #include "Utilities/ProtocolHelpers.hpp"
      14             : #include "Utilities/TMPL.hpp"
      15             : 
      16             : /// \cond
      17             : class DataVector;
      18             : template <size_t Dim>
      19             : class Mesh;
      20             : template <typename VariablesTags>
      21             : class Variables;
      22             : namespace gsl {
      23             : template <typename T>
      24             : class not_null;
      25             : }  // namespace gsl
      26             : /// \endcond
      27             : 
      28           0 : namespace ah {
      29             : 
      30             : /// Given the generalized harmonic variables in the volume, computes
      31             : /// the quantities that will be interpolated onto an excision boundary.
      32             : ///
      33             : /// This is meant to be the primary `compute_vars_to_interpolate`
      34             : /// for the computation of the characteristic speeds on the
      35             : /// excision boundary.
      36             : ///
      37             : /// SrcTagList and DestTagList have limited flexibility, and their
      38             : /// restrictions are static_asserted inside the apply functions.  The
      39             : /// lack of complete flexibility is intentional, because most
      40             : /// computations (e.g. for observers) should be done only on the
      41             : /// horizon surface (i.e. after interpolation) as opposed to in the
      42             : /// volume; only those computations that require data in the volume
      43             : /// (e.g. volume numerical derivatives) should be done here.
      44             : ///
      45             : /// For the dual-frame case, numerical derivatives of Jacobians are
      46             : /// taken in order to avoid Hessians.
      47             : ///
      48             : /// SrcTagList is usually `interpolator_source_vars` in the
      49             : /// Metavariables, and the allowed and required tags in SrcTagList are
      50             : /// given by the type aliases `allowed_src_tags` and `required_src_tags`
      51             : /// below.
      52             : ///
      53             : /// DestTagList is usually `vars_to_interpolate_to_target` in the
      54             : /// `InterpolationTarget` that uses `ComputeExcisionBoundaryVolumeQuantities`.
      55             : /// The allowed and required tags in DestTagList are given by
      56             : /// the type aliases `allowed_dest_tags` and `required_dest_tags` below.
      57           1 : struct ComputeExcisionBoundaryVolumeQuantities
      58             :     : tt::ConformsTo<intrp::protocols::ComputeVarsToInterpolate> {
      59             :   /// Single-frame case
      60             :   template <typename SrcTagList, typename DestTagList>
      61           1 :   static void apply(const gsl::not_null<Variables<DestTagList>*> target_vars,
      62             :                     const Variables<SrcTagList>& src_vars, const Mesh<3>& mesh);
      63             :   /// Dual-frame case
      64             :   template <typename SrcTagList, typename DestTagList, typename TargetFrame>
      65           1 :   static void apply(
      66             :       const gsl::not_null<Variables<DestTagList>*> target_vars,
      67             :       const Variables<SrcTagList>& src_vars, const Mesh<3>& mesh,
      68             :       const Jacobian<DataVector, 3, TargetFrame, Frame::Inertial>&
      69             :           jac_target_to_inertial,
      70             :       const InverseJacobian<DataVector, 3, TargetFrame, Frame::Inertial>&
      71             :           invjac_target_to_inertial,
      72             :       const Jacobian<DataVector, 3, Frame::ElementLogical, TargetFrame>&
      73             :           jac_logical_to_target,
      74             :       const InverseJacobian<DataVector, 3, Frame::ElementLogical, TargetFrame>&
      75             :           invjac_logical_to_target,
      76             :       const tnsr::I<DataVector, 3, Frame::Inertial>& inertial_mesh_velocity,
      77             :       const tnsr::I<DataVector, 3, TargetFrame>&
      78             :           grid_to_target_frame_mesh_velocity);
      79             : 
      80           0 :   using allowed_src_tags =
      81             :       tmpl::list<gr::Tags::SpacetimeMetric<DataVector, 3>,
      82             :                  gh::Tags::Pi<DataVector, 3>, gh::Tags::Phi<DataVector, 3>,
      83             :                  ::Tags::deriv<gh::Tags::Phi<DataVector, 3>, tmpl::size_t<3>,
      84             :                                Frame::Inertial>>;
      85             : 
      86           0 :   using required_src_tags =
      87             :       tmpl::list<gr::Tags::SpacetimeMetric<DataVector, 3>>;
      88             : 
      89             :   template <typename TargetFrame>
      90           0 :   using allowed_dest_tags_target_frame =
      91             :       tmpl::list<gr::Tags::SpatialMetric<DataVector, 3, TargetFrame>,
      92             :                  gr::Tags::SpacetimeMetric<DataVector, 3, TargetFrame>,
      93             :                  gr::Tags::Lapse<DataVector>,
      94             :                  gr::Tags::Shift<DataVector, 3, TargetFrame>,
      95             :                  gr::Tags::ShiftyQuantity<DataVector, 3, TargetFrame>>;
      96             : 
      97             :   template <typename TargetFrame>
      98           0 :   using allowed_dest_tags = tmpl::remove_duplicates<
      99             :       tmpl::append<allowed_dest_tags_target_frame<TargetFrame>,
     100             :                    allowed_dest_tags_target_frame<Frame::Inertial>>>;
     101             : 
     102             :   template <typename TargetFrame>
     103           0 :   using required_dest_tags = tmpl::list<>;
     104             : };
     105             : 
     106             : }  // namespace ah