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1 0 : // Distributed under the MIT License. 2 : // See LICENSE.txt for details. 3 : 4 : #pragma once 5 : 6 : #include <cstddef> 7 : 8 : #include "DataStructures/VariablesTag.hpp" 9 : #include "Evolution/Particles/MonteCarlo/Tags.hpp" 10 : #include "Evolution/Systems/GeneralizedHarmonic/Tags.hpp" 11 : #include "PointwiseFunctions/GeneralRelativity/Tags.hpp" 12 : #include "PointwiseFunctions/Hydro/Tags.hpp" 13 : #include "PointwiseFunctions/Hydro/TagsDeclarations.hpp" 14 : #include "Utilities/TMPL.hpp" 15 : 16 : namespace Particles::MonteCarlo { 17 : 18 0 : struct System { 19 0 : static constexpr bool is_in_flux_conservative_form = false; 20 0 : static constexpr bool has_primitive_and_conservative_vars = false; 21 0 : static constexpr size_t volume_dim = 3; 22 : // The EoS is used within the MC code itself, even if we provide 23 : // the fluid variables as a background. 24 0 : static constexpr size_t thermodynamic_dim = 3; 25 : 26 0 : using mc_variables_tag = ::Tags::Variables< 27 : tmpl::list<Particles::MonteCarlo::Tags::PacketsOnElement>>; 28 0 : using variables_tag = ::Tags::Variables<tmpl::list<>>; // mc_variables_tag; 29 0 : using flux_variables = tmpl::list<>; 30 0 : using gradient_variables = tmpl::list<>; 31 : // GR tags needed for background metric 32 0 : using spacetime_variables_tag = ::Tags::Variables<tmpl::list< 33 : gr::Tags::Lapse<DataVector>, gr::Tags::Shift<DataVector, volume_dim>, 34 : gr::Tags::SpatialMetric<DataVector, volume_dim>, 35 : gr::Tags::InverseSpatialMetric<DataVector, volume_dim>, 36 : gr::Tags::SqrtDetSpatialMetric<DataVector>, 37 : gh::Tags::Phi<DataVector, volume_dim, Frame::Inertial>>>; 38 0 : using flux_spacetime_variables_tag = ::Tags::Variables<tmpl::list<>>; 39 : // Hydro tags needed for background fluid 40 0 : using hydro_variables_tag = ::Tags::Variables<hydro::grmhd_tags<DataVector>>; 41 0 : using primitive_variables_tag = hydro_variables_tag; 42 : 43 0 : using inverse_spatial_metric_tag = 44 : gr::Tags::InverseSpatialMetric<DataVector, 3>; 45 : }; 46 : } // namespace Particles::MonteCarlo