Eval_Puiss_Th_VEF_Face.h

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#ifndef Eval_Puiss_Th_VEF_Face_included
#define Eval_Puiss_Th_VEF_Face_included
 
#include <Evaluateur_Source_VEF_Face.h>
#include <Champ_Uniforme.h>
#include <TRUST_Ref.h>
 
#include <TRUSTTab.h>
class Eval_Puiss_Th_VEF_Face: public Evaluateur_Source_VEF_Face
{
public:
  void completer() override;
  void associer_champs(const Champ_Don_base& );
  void mettre_a_jour() override { }
 
protected:
  OBS_PTR(Champ_Don_base) la_puissance;
  DoubleTab tab_puissance;
  DoubleVect tab_volumes;
  mutable int nb_faces_elem = 0;
};
 
// ToDo simplify coding, better on GPU and lisibility !
/*
bool unif = puissance.dimension(0)==1;
int elem0 = unif ? 0 : face_voisins(num_face, 0);
int elem1 = unif ? 0 : face_voisins(num_face, 1);
for (int i = 0; i < size; i++)
   source[i] = ((puissance(elem0, 0) * volumes(elem0) + puissance(elem1, 0) * volumes(elem1)) / (nb_faces_elem)) * porosite_surf[num_face];
*/
 
// Device compatible ligthweight class (only views and device functions)
// When the object if copied to the device no parent stuff is copied
class Eval_Puiss_Th_VEF_Face_View: public Eval_Puiss_Th_VEF_Face
{
public:
  virtual bool has_view() const override { return true; }
  void set(const Eval_Puiss_Th_VEF_Face_View& eval) const
  {
    nb_faces_elem = eval.nb_faces_elem;
    puissance_ = eval.tab_puissance.view_ro();
    volumes_ = eval.tab_volumes.view_ro();
    face_voisins_ = eval.face_voisins.view_ro();
    volumes_entrelaces_ = eval.volumes_entrelaces.view_ro();
    volumes_entrelaces_Cl_ = eval.volumes_entrelaces_Cl.view_ro();
    porosite_surf_ = eval.porosite_surf.view_ro();
  };
  KOKKOS_INLINE_FUNCTION
  void calculer_terme_source_standard_view(int num_face, DoubleArrView source) const
  {
    const int size = (int)source.size();
    if (size > 1) Process::Kokkos_exit("Eval_Puiss_Th_VEF_Face::calculer_terme_source_standard not available for multi-inco !");
    if (puissance_.extent(0)==1)
      for (int i = 0; i < size; i++)
        source(i) = puissance_(0, 0) * volumes_entrelaces_(num_face) * porosite_surf_(num_face);
    else
      {
        int elem0 = face_voisins_(num_face, 0);
        int elem1 = face_voisins_(num_face, 1);
        for (int i = 0; i < size; i++)
          {
            source(i) = ((puissance_(elem0, 0) * volumes_(elem0) + puissance_(elem1, 0) * volumes_(elem1)) /
                         (nb_faces_elem)) * porosite_surf_(num_face);
          }
      }
  }
  KOKKOS_INLINE_FUNCTION
  void calculer_terme_source_non_standard_view(int num_face, DoubleArrView source) const
  {
    const int size = (int)source.size();
    if (size > 1) Process::Kokkos_exit("Eval_Puiss_Th_VEF_Face::calculer_terme_source_non_standard not available for multi-inco !");
 
    if (puissance_.extent(0)==1)
      for (int i = 0; i < size; i++)
        source[i] = puissance_(0, 0) * volumes_entrelaces_Cl_[num_face]; // ToDo porosite_surf missing ?
    else
      {
        int elem0 = face_voisins_(num_face, 0);
        int elem1 = face_voisins_(num_face, 1);
        if (elem1 != -1)
          for (int i = 0; i < size; i++)
            source[i] = ((puissance_(elem0, 0) * volumes_(elem0) + puissance_(elem1, 0) * volumes_(elem1)) / (nb_faces_elem)) * porosite_surf_[num_face];
        else
          for (int i = 0; i < size; i++)
            source[i] = ((puissance_(elem0, 0) * volumes_(elem0)) / (nb_faces_elem)) * porosite_surf_[num_face];
      }
  }
private:
  // Views
  mutable CDoubleTabView puissance_;
  mutable CDoubleArrView volumes_;
  mutable CIntTabView face_voisins_;
  mutable CDoubleArrView volumes_entrelaces_;
  mutable CDoubleArrView volumes_entrelaces_Cl_;
  mutable CDoubleArrView porosite_surf_;
};
#endif /* Eval_Puiss_Th_VEF_Face_included */