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Socket.cpp

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  • FiniteVolumesDiffusion.hpp 7.50 KiB
    #ifndef FINITE_VOLUMES_DIFFUSION_HPP
    #define FINITE_VOLUMES_DIFFUSION_HPP
    
    // --- INCLUSION fichiers headers ---
    
    #include <Kokkos_Core.hpp>
    
    #include <rang.hpp>
    #include <BlockPerfectGas.hpp>
    
    #include <TinyVector.hpp>
    #include <TinyMatrix.hpp>
    #include <Mesh.hpp>
    #include <MeshData.hpp>
    #include <FiniteVolumesEulerUnknowns.hpp>
    
    // ---------------------------------
    
    // Creation classe FiniteVolumesDiffusion 
    
    template<typename MeshData> // MeshData est le type generique des donnees (geometriques) attachees a un maillage
    class FiniteVolumesDiffusion 
    {
      typedef typename MeshData::MeshType MeshType; // type du maillage
      typedef FiniteVolumesEulerUnknowns<MeshData> UnknownsType; // type des inconnues
    
      MeshData& m_mesh_data; // reference vers les donnees attachees du maillage
      const MeshType& m_mesh; // reference vers le maillage
      const typename MeshType::Connectivity& m_connectivity; // references vers la connectivite
    
      constexpr static size_t dimension = MeshType::dimension; // dimension du maillage (connue a la compilation)
    
      typedef TinyVector<dimension> Rd; // type de petits vecteurs (de dimension MeshType::dimension)
      typedef TinyMatrix<dimension> Rdd; // type de petites matrices
    
    private:
    
     // Sert a calculer les reductions (en gros calculer le min sur des
     // vecteurs en parallele)
      struct ReduceMin
      {
      private:
        const Kokkos::View<const double*> x_;
    
      public:
        typedef Kokkos::View<const double*>::non_const_value_type value_type;
    
        ReduceMin(const Kokkos::View<const double*>& x) : x_ (x) {}
    
        typedef Kokkos::View<const double*>::size_type size_type;
        
        KOKKOS_INLINE_FUNCTION void
        operator() (const size_type i, value_type& update) const
        {
          if (x_(i) < update) {
    	update = x_(i);
          }
        }
    
        KOKKOS_INLINE_FUNCTION void
        join (volatile value_type& dst,
    	  const volatile value_type& src) const
        {
          if (src < dst) {
    	dst = src;
          }
        }
    
        KOKKOS_INLINE_FUNCTION void
        init (value_type& dst) const