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 <utility>  // IWYU pragma: keep  // for move
      10             : 
      11             : #include "DataStructures/DataBox/DataBox.hpp"
      12             : #include "Evolution/Initialization/InitialData.hpp"
      13             : #include "Parallel/AlgorithmExecution.hpp"
      14             : #include "Parallel/GlobalCache.hpp"
      15             : #include "ParallelAlgorithms/Initialization/MutateAssign.hpp"
      16             : #include "Utilities/TMPL.hpp"
      17             : #include "Utilities/TaggedTuple.hpp"
      18             : 
      19             : /// \cond
      20             : namespace domain {
      21             : namespace Tags {
      22             : template <size_t VolumeDim>
      23             : struct Mesh;
      24             : }  // namespace Tags
      25             : }  // namespace domain
      26             : // IWYU pragma: no_forward_declare db::DataBox
      27             : /// \endcond
      28             : 
      29             : namespace Initialization {
      30             : namespace Actions {
      31             : /// \ingroup InitializationGroup
      32             : /// \brief Allocate variables needed for evolution of nonconservative systems
      33             : ///
      34             : /// Uses:
      35             : /// - DataBox:
      36             : ///   * `Tags::Mesh<Dim>`
      37             : ///
      38             : /// DataBox changes:
      39             : /// - Adds:
      40             : ///   * System::variables_tag
      41             : ///
      42             : /// - Removes: nothing
      43             : /// - Modifies: nothing
      44             : template <typename System>
      45           1 : struct NonconservativeSystem {
      46             :   static_assert(not System::is_in_flux_conservative_form,
      47             :                 "System is in flux conservative form");
      48           0 :   static constexpr size_t dim = System::volume_dim;
      49           0 :   using variables_tag = typename System::variables_tag;
      50           0 :   using simple_tags = db::AddSimpleTags<variables_tag>;
      51           0 :   using compute_tags = db::AddComputeTags<>;
      52             : 
      53             :   template <typename DbTagsList, typename... InboxTags, typename Metavariables,
      54             :             typename ArrayIndex, typename ActionList,
      55             :             typename ParallelComponent>
      56           0 :   static Parallel::iterable_action_return_t apply(
      57             :       db::DataBox<DbTagsList>& box,
      58             :       const tuples::TaggedTuple<InboxTags...>& /*inboxes*/,
      59             :       const Parallel::GlobalCache<Metavariables>& /*cache*/,
      60             :       const ArrayIndex& /*array_index*/, ActionList /*meta*/,
      61             :       const ParallelComponent* const /*meta*/) {
      62             :     using Vars = typename variables_tag::type;
      63             :     Initialization::mutate_assign<simple_tags>(
      64             :         make_not_null(&box),
      65             :         Vars{db::get<domain::Tags::Mesh<dim>>(box).number_of_grid_points()});
      66             : 
      67             :     return {Parallel::AlgorithmExecution::Continue, std::nullopt};
      68             :   }
      69             : };
      70             : }  // namespace Actions
      71             : }  // namespace Initialization