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/TMPL.hpp"
      29              : 
      30              : /// \cond
      31              : namespace Frame {
      32              : struct Inertial;
      33              : }  // namespace Frame
      34              : 
      35              : namespace domain {
      36              : namespace Tags {
      37              : template <size_t VolumeDim, typename Frame>
      38              : struct Coordinates;
      39              : template <size_t VolumeDim>
      40              : struct Mesh;
      41              : }  // namespace Tags
      42              : }  // namespace domain
      43              : 
      44              : namespace tuples {
      45              : template <class... Tags>
      46              : class TaggedTuple;
      47              : }  // namespace tuples
      48              : /// \endcond
      49              : 
      50            0 : namespace Initialization {
      51            0 : namespace Actions {
      52              : /// \ingroup InitializationGroup
      53              : /// \brief Allocate variables needed for evolution of conservative systems
      54              : ///
      55              : /// Uses:
      56              : /// - DataBox:
      57              : ///   * `Tags::Mesh<Dim>`
      58              : ///
      59              : /// DataBox changes:
      60              : /// - Adds:
      61              : ///   * System::variables_tag
      62              : ///   * db::add_tag_prefix<Tags::Flux, System::variables_tag>
      63              : ///   * db::add_tag_prefix<Tags::Source, System::variables_tag>
      64              : ///
      65              : /// - Removes: nothing
      66              : /// - Modifies: nothing
      67              : template <typename System>
      68            1 : struct ConservativeSystem {
      69              :  private:
      70            0 :   static constexpr size_t dim = System::volume_dim;
      71              : 
      72            0 :   using variables_tag = typename System::variables_tag;
      73              : 
      74              :   template <typename LocalSystem,
      75              :             bool = LocalSystem::has_primitive_and_conservative_vars>
      76            0 :   struct simple_tags_impl {
      77            0 :     using type = tmpl::list<variables_tag>;
      78              :   };
      79              : 
      80              :   template <typename LocalSystem>
      81            0 :   struct simple_tags_impl<LocalSystem, true> {
      82            0 :     using type =
      83              :         tmpl::list<variables_tag, typename System::primitive_variables_tag>;
      84              :   };
      85              : 
      86              :  public:
      87            0 :   using simple_tags = typename simple_tags_impl<System>::type;
      88              : 
      89            0 :   using compute_tags = db::AddComputeTags<>;
      90              : 
      91              :   template <typename DbTagsList, typename... InboxTags, typename Metavariables,
      92              :             typename ArrayIndex, typename ActionList,
      93              :             typename ParallelComponent>
      94            0 :   static Parallel::iterable_action_return_t apply(
      95              :       db::DataBox<DbTagsList>& box,
      96              :       const tuples::TaggedTuple<InboxTags...>& /*inboxes*/,
      97              :       const Parallel::GlobalCache<Metavariables>& /*cache*/,
      98              :       const ArrayIndex& /*array_index*/, ActionList /*meta*/,
      99              :       const ParallelComponent* const /*meta*/) {
     100              :     const size_t num_grid_points =
     101              :         db::get<domain::Tags::Mesh<dim>>(box).number_of_grid_points();
     102              :     typename variables_tag::type vars(num_grid_points);
     103              : 
     104              :     if constexpr (System::has_primitive_and_conservative_vars) {
     105              :       using PrimitiveVars = typename System::primitive_variables_tag::type;
     106              : 
     107              :       PrimitiveVars primitive_vars{
     108              :           db::get<domain::Tags::Mesh<dim>>(box).number_of_grid_points()};
     109              :       Initialization::mutate_assign<simple_tags>(
     110              :           make_not_null(&box), std::move(vars), std::move(primitive_vars));
     111              :     } else {
     112              :       Initialization::mutate_assign<simple_tags>(make_not_null(&box),
     113              :                                                  std::move(vars));
     114              :     }
     115              :     return {Parallel::AlgorithmExecution::Continue, std::nullopt};
     116              :   }
     117              : };
     118              : }  // namespace Actions
     119              : }  // namespace Initialization