TRUSTChamp_Divers_generique.h

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#ifndef TRUSTChamp_Divers_generique_included
#define TRUSTChamp_Divers_generique_included
 
#include <Champ_Don_base.h>
 
enum class Champ_Divers_Type { INUTILE , UNIFORME , CANAL };
 
template <Champ_Divers_Type _TYPE_>
class TRUSTChamp_Divers_generique : public Champ_Don_base
{
public:
  Champ_base& affecter(const Champ_base& ch)
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME), IS_CANAL = (_TYPE_ == Champ_Divers_Type::CANAL);
    if (IS_UNIFORME) return Champ_Don_base::affecter(ch);
    if (IS_CANAL) Champ_base::affecter_erreur();
 
    return *this;
  }
 
  DoubleVect& valeur_a(const DoubleVect&, DoubleVect& tab_valeurs) const override
  {
    assert (_TYPE_ != Champ_Divers_Type::CANAL);
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME);
    if (IS_UNIFORME)
      {
        for (int j = 0; j < nb_comp(); j++) tab_valeurs(j) = valeurs_(0, j);
        return tab_valeurs;
      }
    else
      return not_implemented_champ_<DoubleVect&>(__func__); /* Useless case: method overridden for CANAL */
  }
 
  double valeur_a_compo(const DoubleVect& x, int ncomp) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME), IS_CANAL = (_TYPE_ == Champ_Divers_Type::CANAL);
    if (IS_UNIFORME) return valeurs_(0,ncomp);
    else if (IS_CANAL) return Champ_Don_base::valeur_a_compo(x,ncomp);
    else return not_implemented_champ_<double>(__func__); /* INUTILE */
  }
 
  DoubleVect& valeur_a_elem(const DoubleVect& positions, DoubleVect& tab_valeurs, int) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME), IS_CANAL = (_TYPE_ == Champ_Divers_Type::CANAL);
    if (IS_UNIFORME)
      {
        for (int j = 0; j < nb_comp(); j++) tab_valeurs(j) = valeurs_(0, j);
        return tab_valeurs;
      }
 
    else if (IS_CANAL) return valeur_a(positions, tab_valeurs); // from VTABLE
 
    else return not_implemented_champ_<DoubleVect&>(__func__); /* INUTILE */
  }
 
  double valeur_a_elem_compo(const DoubleVect&, int, int ncomp) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME);
    return IS_UNIFORME ? valeurs_(0,ncomp) : not_implemented_champ_<double>(__func__); /* method overridden for CANAL */
  }
 
  DoubleTab& valeur_aux(const DoubleTab& , DoubleTab& tab_valeurs) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME);
    if (IS_UNIFORME)
      {
        int size = tab_valeurs.dimension_tot(0); // GF dimension_tot so that the line is valid for P1B fields
        int nb_comp = tab_valeurs.line_size();
        bool kernelOnDevice = tab_valeurs.checkDataOnDevice();
        if (kernelOnDevice)
          {
#ifdef KOKKOS
            CDoubleTabView valeurs = valeurs_.view_ro();
            DoubleTabView tab_valeurs_v = tab_valeurs.view_rw();
            Kokkos::parallel_for(start_gpu_timer(__KERNEL_NAME__), Kokkos::MDRangePolicy<Kokkos::Rank<2>>({0, 0}, {size, nb_comp }),
                                 KOKKOS_LAMBDA(const int i, const int j)
            {
              tab_valeurs_v(i, j) = valeurs(0, j);
            });
            end_gpu_timer(__KERNEL_NAME__, kernelOnDevice);
#endif
          }
        else
          {
            for (int i = 0; i < size; i++)
              for (int j = 0; j < nb_comp; j++)
                tab_valeurs(i, j) = valeurs_(0, j);
          }
        return tab_valeurs;
      }
    else
      return not_implemented_champ_<DoubleTab&>(__func__); // see derived classes ...
  }
 
  DoubleVect& valeur_aux_compo(const DoubleTab&, DoubleVect& tab_valeurs, int ncomp) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME);
    if (IS_UNIFORME) return tab_valeurs = valeurs_(0, ncomp);
    else return not_implemented_champ_<DoubleVect&>(__func__); // BOOM
  }
 
  DoubleTab& valeur_aux_elems(const DoubleTab& positions, const IntVect&, DoubleTab& tab_valeurs) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME);
    if (IS_UNIFORME)
      {
        int size = tab_valeurs.dimension(0);
        int nb_comp = tab_valeurs.line_size();
        bool kernelOnDevice = tab_valeurs.checkDataOnDevice();
        if (kernelOnDevice)
          {
#ifdef KOKKOS
            CDoubleTabView valeurs = valeurs_.view_ro();
            DoubleTabView tab_valeurs_v = tab_valeurs.view_rw();
            Kokkos::parallel_for(start_gpu_timer(__KERNEL_NAME__), Kokkos::MDRangePolicy<Kokkos::Rank<2>>({0, 0}, {size, nb_comp}),
                                 KOKKOS_LAMBDA(const int i, const int j)
            {
              tab_valeurs_v(i, j) = valeurs(0, j);
            });
            end_gpu_timer(__KERNEL_NAME__, kernelOnDevice);
#endif
          }
        else
          {
            for (int i = 0; i < size; i++)
              for (int j = 0; j < nb_comp; j++)
                tab_valeurs(i, j) = valeurs_(0, j);
          }
        return tab_valeurs;
      }
 
    else return valeur_aux(positions, tab_valeurs); // from VTABLE
  }
 
  DoubleVect& valeur_aux_elems_compo(const DoubleTab& positions, const IntVect&, DoubleVect& tab_valeurs, int ncomp) const override
  {
    static constexpr bool IS_UNIFORME = (_TYPE_ == Champ_Divers_Type::UNIFORME);
    if (IS_UNIFORME) return tab_valeurs = valeurs_(0, ncomp);
 
    else return valeur_aux_compo(positions, tab_valeurs, ncomp); // from VTABLE
  }
};
 
#endif /* TRUSTChamp_Divers_generique_included */