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/DataVector.hpp"
       9             : #include "DataStructures/Tensor/Tensor.hpp"
      10             : #include "Domain/Creators/Tags/Domain.hpp"
      11             : #include "Domain/Tags.hpp"
      12             : #include "Evolution/Initialization/InitialData.hpp"
      13             : #include "Evolution/Initialization/Tags.hpp"
      14             : #include "Evolution/Systems/CurvedScalarWave/BackgroundSpacetime.hpp"
      15             : #include "Evolution/Systems/CurvedScalarWave/System.hpp"
      16             : #include "Parallel/AlgorithmExecution.hpp"
      17             : #include "Parallel/GlobalCache.hpp"
      18             : #include "PointwiseFunctions/AnalyticData/Tags.hpp"
      19             : 
      20             : /// \cond
      21             : namespace Tags {
      22             : struct Time;
      23             : }  // namespace Tags
      24             : /// \endcond
      25             : 
      26           0 : namespace CurvedScalarWave::Actions {
      27             : 
      28             : /// \ingroup ActionsGroup
      29             : /// \brief Action that initializes or updates items related to the
      30             : /// spacetime background of the CurvedScalarWave system
      31             : ///
      32             : /// If `SkipForStaticBlocks` is `true`, then this action does nothing if the
      33             : /// block of the domain is time independent. This is a performance optimization
      34             : /// to avoid updating the background spacetime in blocks that are time
      35             : /// independent. Note that this assumes that the background spacetime is also
      36             : /// time independent.
      37             : ///
      38             : /// DataBox changes:
      39             : /// - Adds:
      40             : ///   * `CurvedScalarWave::System::spacetime_tag_list`
      41             : /// - Removes: nothing
      42             : /// - Modifies: nothing
      43             : template <typename System, bool SkipForStaticDomains>
      44           1 : struct CalculateGrVars {
      45           0 :   static constexpr size_t Dim = System::volume_dim;
      46           0 :   using simple_tags = db::AddSimpleTags<typename System::spacetime_tag_list>;
      47           0 :   using compute_tags = db::AddComputeTags<>;
      48             : 
      49             :   template <typename DbTagsList, typename... InboxTags, typename Metavariables,
      50             :             typename ActionList, typename ParallelComponent>
      51           0 :   static Parallel::iterable_action_return_t apply(
      52             :       db::DataBox<DbTagsList>& box,
      53             :       const tuples::TaggedTuple<InboxTags...>& /*inboxes*/,
      54             :       const Parallel::GlobalCache<Metavariables>& /*cache*/,
      55             :       const ElementId<Dim>& element_id, ActionList /*meta*/,
      56             :       const ParallelComponent* const /*meta*/) {
      57             :     if constexpr (SkipForStaticDomains) {
      58             :       const auto& domain = db::get<domain::Tags::Domain<Dim>>(box);
      59             :       const auto& block = domain.blocks()[element_id.block_id()];
      60             :       if (not block.is_time_dependent()) {
      61             :         return {Parallel::AlgorithmExecution::Continue, std::nullopt};
      62             :       }
      63             :     }
      64             :     auto initial_data = evolution::Initialization::initial_data(
      65             :         db::get<CurvedScalarWave::Tags::BackgroundSpacetime<
      66             :             typename Metavariables::background_spacetime>>(box),
      67             :         db::get<domain::Tags::Coordinates<Dim, Frame::Inertial>>(box),
      68             :         db::get<::Tags::Time>(box), typename System::spacetime_tag_list{});
      69             :     tmpl::for_each<typename System::spacetime_tag_list>(
      70             :         [&box, &initial_data](auto spacetime_tag_v) {
      71             :           using spacetime_tag = tmpl::type_from<decltype(spacetime_tag_v)>;
      72             :           db::mutate<spacetime_tag>(
      73             :               [&initial_data](const auto spacetime_tag_ptr) {
      74             :                 *spacetime_tag_ptr =
      75             :                     std::move(get<spacetime_tag>(initial_data));
      76             :               },
      77             :               make_not_null(&box));
      78             :         });
      79             : 
      80             :     return {Parallel::AlgorithmExecution::Continue, std::nullopt};
      81             :   }
      82             : };
      83             : }  // namespace CurvedScalarWave::Actions