Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <memory>
       7             : #include <string>
       8             : 
       9             : #include "DataStructures/DataBox/Tag.hpp"
      10             : #include "Options/String.hpp"
      11             : #include "Utilities/PrettyType.hpp"
      12             : #include "Utilities/Serialization/Serialize.hpp"
      13             : 
      14             : /// Functionality related to solving elliptic partial differential equations
      15             : namespace elliptic {
      16             : 
      17             : namespace OptionTags {
      18             : 
      19             : template <typename BackgroundType>
      20           0 : struct Background {
      21           0 :   static constexpr Options::String help =
      22             :       "The variable-independent part of the equations that define the problem "
      23             :       "to solve (along with the boundary conditions).";
      24           0 :   using type = std::unique_ptr<BackgroundType>;
      25             : };
      26             : 
      27             : template <typename InitialGuessType>
      28           0 : struct InitialGuess {
      29           0 :   static constexpr Options::String help =
      30             :       "The initial guess for the elliptic solve. The solve converges faster if "
      31             :       "the initial guess is close to the solution and may not converge at all "
      32             :       "if the initial guess is too far away.";
      33           0 :   using type = std::unique_ptr<InitialGuessType>;
      34             : };
      35             : 
      36             : }  // namespace OptionTags
      37             : 
      38             : namespace Tags {
      39             : 
      40             : /// The variable-independent part of the elliptic equations, e.g. the
      41             : /// fixed-sources \f$f(x)\f$ in a Poisson equation \f$-\Delta u=f(x)\f$, the
      42             : /// matter-density in a TOV-solve or the conformal metric in an XCTS solve.
      43             : template <typename BackgroundType>
      44           1 : struct Background : db::SimpleTag {
      45           0 :   using type = std::unique_ptr<BackgroundType>;
      46           0 :   using option_tags = tmpl::list<OptionTags::Background<BackgroundType>>;
      47             : 
      48           0 :   static constexpr bool pass_metavariables = false;
      49           0 :   static type create_from_options(const type& value) {
      50             :     return deserialize<type>(serialize<type>(value).data());
      51             :   }
      52             : };
      53             : 
      54             : /// The initial guess for the elliptic solve.
      55             : template <typename InitialGuessType>
      56           1 : struct InitialGuess : db::SimpleTag {
      57           0 :   using type = std::unique_ptr<InitialGuessType>;
      58           0 :   using option_tags = tmpl::list<OptionTags::InitialGuess<InitialGuessType>>;
      59             : 
      60           0 :   static constexpr bool pass_metavariables = false;
      61           0 :   static type create_from_options(const type& value) {
      62             :     return deserialize<type>(serialize<type>(value).data());
      63             :   }
      64             : };
      65             : 
      66             : }  // namespace Tags
      67             : }  // namespace elliptic