Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <array>
       7             : #include <cmath>
       8             : #include <cstddef>
       9             : #include <optional>
      10             : #include <string>
      11             : 
      12             : #include "ControlSystem/Component.hpp"
      13             : #include "ControlSystem/ControlErrors/Shape.hpp"
      14             : #include "ControlSystem/Measurements/BothHorizons.hpp"
      15             : #include "ControlSystem/Measurements/SingleHorizon.hpp"
      16             : #include "ControlSystem/Protocols/ControlError.hpp"
      17             : #include "ControlSystem/Protocols/ControlSystem.hpp"
      18             : #include "ControlSystem/Protocols/Measurement.hpp"
      19             : #include "ControlSystem/Tags/QueueTags.hpp"
      20             : #include "ControlSystem/Tags/SystemTags.hpp"
      21             : #include "ControlSystem/UpdateControlSystem.hpp"
      22             : #include "DataStructures/DataBox/DataBox.hpp"
      23             : #include "DataStructures/DataBox/Tag.hpp"
      24             : #include "DataStructures/LinkedMessageQueue.hpp"
      25             : #include "Domain/Structure/ObjectLabel.hpp"
      26             : #include "NumericalAlgorithms/SphericalHarmonics/SpherepackIterator.hpp"
      27             : #include "NumericalAlgorithms/SphericalHarmonics/Strahlkorper.hpp"
      28             : #include "NumericalAlgorithms/SphericalHarmonics/Tags.hpp"
      29             : #include "Parallel/GlobalCache.hpp"
      30             : #include "Parallel/Printf/Printf.hpp"
      31             : #include "ParallelAlgorithms/Actions/UpdateMessageQueue.hpp"
      32             : #include "Utilities/GetOutput.hpp"
      33             : #include "Utilities/ProtocolHelpers.hpp"
      34             : #include "Utilities/TMPL.hpp"
      35             : 
      36             : /// \cond
      37             : namespace Frame {
      38             : struct Distorted;
      39             : }  // namespace Frame
      40             : /// \endcond
      41             : 
      42             : namespace control_system::Systems {
      43             : /*!
      44             :  * \brief Controls the \link domain::CoordinateMaps::TimeDependent::Shape Shape
      45             :  * \endlink map
      46             :  *
      47             :  * \details Controls the functions \f$ \lambda_{lm}(t) \f$ in the \link
      48             :  * domain::CoordinateMaps::TimeDependent::Shape Shape \endlink map to match the
      49             :  * shape of the excision sphere to the shape of the horizon.
      50             :  *
      51             :  * Requirements:
      52             :  * - This control system requires that there be at least one excision surface in
      53             :  *   the simulation
      54             :  * - Currently this control system can only be used with the \link
      55             :  *   control_system::measurements::BothHorizons BothHorizons \endlink
      56             :  * measurement
      57             :  * - Currently this control system can only be used with the \link
      58             :  *   control_system::ControlErrors::Shape Shape \endlink control error
      59             :  */
      60             : template <::domain::ObjectLabel Horizon, size_t DerivOrder,
      61             :           typename Measurement>
      62           1 : struct Shape : tt::ConformsTo<protocols::ControlSystem> {
      63           0 :   static constexpr size_t deriv_order = DerivOrder;
      64             : 
      65           0 :   static std::string name() { return "Shape"s + ::domain::name(Horizon); }
      66             : 
      67           0 :   static std::optional<std::string> component_name(
      68             :       const size_t i, const size_t num_components) {
      69             :     // num_components = 2 * (l_max + 1)**2 if l_max == m_max which it is for the
      70             :     // shape map. This is why we can divide by 2 and take the sqrt without
      71             :     // worrying about odd numbers or non-perfect squares
      72             :     const size_t l_max = -1 + sqrt(num_components / 2);
      73             :     ylm::SpherepackIterator iter(l_max, l_max);
      74             :     const auto compact_index = iter.compact_index(i);
      75             :     if (compact_index.has_value()) {
      76             :       iter.set(compact_index.value());
      77             :       const int m = iter.coefficient_array() ==
      78             :                             ylm::SpherepackIterator::CoefficientArray::a
      79             :                         ? static_cast<int>(iter.m())
      80             :                         : -static_cast<int>(iter.m());
      81             :       return {"l"s + get_output(iter.l()) + "m"s + get_output(m)};
      82             :     } else {
      83             :       return std::nullopt;
      84             :     }
      85             :   }
      86             : 
      87           0 :   using measurement = Measurement;
      88             :   static_assert(
      89             :       std::is_same_v<measurement, measurements::SingleHorizon<Horizon>> or
      90             :           std::is_same_v<measurement, measurements::BothHorizons>,
      91             :       "Must use either SingleHorizon or BothHorizon measurement for Shape "
      92             :       "control system.");
      93             :   static_assert(
      94             :       tt::conforms_to_v<measurement, control_system::protocols::Measurement>);
      95             : 
      96           0 :   using control_error = ControlErrors::Shape<Horizon>;
      97             :   static_assert(tt::conforms_to_v<control_error,
      98             :                                   control_system::protocols::ControlError>);
      99             : 
     100             :   // tag goes in control component
     101           0 :   struct MeasurementQueue : db::SimpleTag {
     102           0 :     using type =
     103             :         LinkedMessageQueue<double,
     104             :                            tmpl::list<QueueTags::Horizon<Frame::Distorted>>>;
     105             :   };
     106             : 
     107           0 :   using simple_tags = tmpl::list<MeasurementQueue>;
     108             : 
     109           0 :   struct process_measurement {
     110             :     template <typename Submeasurement>
     111           0 :     using argument_tags = tmpl::list<ylm::Tags::Strahlkorper<Frame::Distorted>>;
     112             : 
     113             :     template <typename Metavariables>
     114           0 :     static void apply(typename measurements::SingleHorizon<
     115             :                           Horizon>::Submeasurement submeasurement,
     116             :                       const ylm::Strahlkorper<Frame::Distorted>& strahlkorper,
     117             :                       Parallel::GlobalCache<Metavariables>& cache,
     118             :                       const LinkedMessageId<double>& measurement_id) {
     119             :       auto& control_sys_proxy = Parallel::get_parallel_component<
     120             :           ControlComponent<Metavariables, Shape>>(cache);
     121             : 
     122             :       Parallel::simple_action<::Actions::UpdateMessageQueue<
     123             :           QueueTags::Horizon<Frame::Distorted>, MeasurementQueue,
     124             :           UpdateControlSystem<Shape>>>(control_sys_proxy, measurement_id,
     125             :                                        strahlkorper);
     126             : 
     127             :       if (Parallel::get<Tags::Verbosity>(cache) >= ::Verbosity::Verbose) {
     128             :         Parallel::printf("%s, time = %.16f: Received measurement '%s'.\n",
     129             :                          name(), measurement_id.id,
     130             :                          pretty_type::name(submeasurement));
     131             :       }
     132             :     }
     133             : 
     134             :     template <::domain::ObjectLabel MeasureHorizon, typename Metavariables>
     135           0 :     static void apply(
     136             :         measurements::BothHorizons::FindHorizon<MeasureHorizon> submeasurement,
     137             :         const ylm::Strahlkorper<Frame::Distorted>& strahlkorper,
     138             :         Parallel::GlobalCache<Metavariables>& cache,
     139             :         const LinkedMessageId<double>& measurement_id) {
     140             :       // The measurement event will call this for both horizons, but we only
     141             :       // need one of the horizons. So if it is called for the wrong horizon,
     142             :       // just do nothing.
     143             :       if constexpr (MeasureHorizon == Horizon) {
     144             :         auto& control_sys_proxy = Parallel::get_parallel_component<
     145             :             ControlComponent<Metavariables, Shape>>(cache);
     146             : 
     147             :         Parallel::simple_action<::Actions::UpdateMessageQueue<
     148             :             QueueTags::Horizon<Frame::Distorted>, MeasurementQueue,
     149             :             UpdateControlSystem<Shape>>>(control_sys_proxy, measurement_id,
     150             :                                          strahlkorper);
     151             : 
     152             :         if (Parallel::get<Tags::Verbosity>(cache) >= ::Verbosity::Verbose) {
     153             :           Parallel::printf("%s, time = %.16f: Received measurement '%s'.\n",
     154             :                            name(), measurement_id.id,
     155             :                            pretty_type::name(submeasurement));
     156             :         }
     157             :       } else {
     158             :         (void)submeasurement;
     159             :         (void)strahlkorper;
     160             :         (void)cache;
     161             :         (void)measurement_id;
     162             :       }
     163             :     }
     164             :   };
     165             : };
     166             : }  // namespace control_system::Systems