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             : #include <optional>
       8             : #include <tuple>
       9             : #include <type_traits>
      10             : #include <utility>
      11             : 
      12             : #include "DataStructures/DataBox/DataBox.hpp"
      13             : #include "DataStructures/DataBox/PrefixHelpers.hpp"
      14             : #include "DataStructures/DataBox/Prefixes.hpp"
      15             : #include "Domain/CoordinateMaps/Tags.hpp"
      16             : #include "Domain/FunctionsOfTime/Tags.hpp"
      17             : #include "Domain/Tags.hpp"
      18             : #include "Domain/TagsTimeDependent.hpp"
      19             : #include "Evolution/Initialization/InitialData.hpp"
      20             : #include "NumericalAlgorithms/LinearOperators/Divergence.tpp"  // Needs to be included somewhere and here seems most natural.
      21             : #include "Parallel/AlgorithmExecution.hpp"
      22             : #include "Parallel/GlobalCache.hpp"
      23             : #include "ParallelAlgorithms/Initialization/MutateAssign.hpp"
      24             : #include "PointwiseFunctions/AnalyticData/Tags.hpp"
      25             : #include "Utilities/ErrorHandling/Error.hpp"
      26             : #include "Utilities/Gsl.hpp"
      27             : #include "Utilities/NoSuchType.hpp"
      28             : #include "Utilities/Requires.hpp"
      29             : #include "Utilities/TMPL.hpp"
      30             : 
      31             : /// \cond
      32             : namespace Frame {
      33             : struct Inertial;
      34             : }  // namespace Frame
      35             : 
      36             : namespace domain {
      37             : namespace Tags {
      38             : template <size_t VolumeDim, typename Frame>
      39             : struct Coordinates;
      40             : template <size_t VolumeDim>
      41             : struct Mesh;
      42             : }  // namespace Tags
      43             : }  // namespace domain
      44             : // IWYU pragma: no_forward_declare db::DataBox
      45             : 
      46             : namespace tuples {
      47             : template <class... Tags>
      48             : class TaggedTuple;
      49             : }  // namespace tuples
      50             : /// \endcond
      51             : 
      52           0 : namespace Initialization {
      53           0 : namespace Actions {
      54             : /// \ingroup InitializationGroup
      55             : /// \brief Allocate variables needed for evolution of conservative systems
      56             : ///
      57             : /// Uses:
      58             : /// - DataBox:
      59             : ///   * `Tags::Mesh<Dim>`
      60             : ///
      61             : /// DataBox changes:
      62             : /// - Adds:
      63             : ///   * System::variables_tag
      64             : ///   * db::add_tag_prefix<Tags::Flux, System::variables_tag>
      65             : ///   * db::add_tag_prefix<Tags::Source, System::variables_tag>
      66             : ///
      67             : /// - Removes: nothing
      68             : /// - Modifies: nothing
      69             : template <typename System>
      70           1 : struct ConservativeSystem {
      71             :  private:
      72           0 :   static constexpr size_t dim = System::volume_dim;
      73             : 
      74           0 :   using variables_tag = typename System::variables_tag;
      75             : 
      76             :   template <typename LocalSystem,
      77             :             bool = LocalSystem::has_primitive_and_conservative_vars>
      78           0 :   struct simple_tags_impl {
      79           0 :     using type = tmpl::list<variables_tag>;
      80             :   };
      81             : 
      82             :   template <typename LocalSystem>
      83           0 :   struct simple_tags_impl<LocalSystem, true> {
      84           0 :     using type =
      85             :         tmpl::list<variables_tag, typename System::primitive_variables_tag>;
      86             :   };
      87             : 
      88             :  public:
      89           0 :   using simple_tags = typename simple_tags_impl<System>::type;
      90             : 
      91           0 :   using compute_tags = db::AddComputeTags<>;
      92             : 
      93             :   template <typename DbTagsList, typename... InboxTags, typename Metavariables,
      94             :             typename ArrayIndex, typename ActionList,
      95             :             typename ParallelComponent>
      96           0 :   static Parallel::iterable_action_return_t apply(
      97             :       db::DataBox<DbTagsList>& box,
      98             :       const tuples::TaggedTuple<InboxTags...>& /*inboxes*/,
      99             :       const Parallel::GlobalCache<Metavariables>& /*cache*/,
     100             :       const ArrayIndex& /*array_index*/, ActionList /*meta*/,
     101             :       const ParallelComponent* const /*meta*/) {
     102             :     const size_t num_grid_points =
     103             :         db::get<domain::Tags::Mesh<dim>>(box).number_of_grid_points();
     104             :     typename variables_tag::type vars(num_grid_points);
     105             : 
     106             :     if constexpr (System::has_primitive_and_conservative_vars) {
     107             :       using PrimitiveVars = typename System::primitive_variables_tag::type;
     108             : 
     109             :       PrimitiveVars primitive_vars{
     110             :           db::get<domain::Tags::Mesh<dim>>(box).number_of_grid_points()};
     111             :       Initialization::mutate_assign<simple_tags>(
     112             :           make_not_null(&box), std::move(vars), std::move(primitive_vars));
     113             :     } else {
     114             :       Initialization::mutate_assign<simple_tags>(make_not_null(&box),
     115             :                                                  std::move(vars));
     116             :     }
     117             :     return {Parallel::AlgorithmExecution::Continue, std::nullopt};
     118             :   }
     119             : };
     120             : }  // namespace Actions
     121             : }  // namespace Initialization