Iterateur_Source_VEF_Face.h

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#ifndef Iterateur_Source_VEF_Face_included
#define Iterateur_Source_VEF_Face_included
 
#include <Evaluateur_Source_VEF_Face.h>
#include <Iterateur_Source_base.h>
#include <Champ_Uniforme.h>
#include <TRUSTSingle.h>
#include <Milieu_base.h>
#include <Domaine_Cl_VEF.h>
#include <Dirichlet.h>
#include <Domaine_VEF.h>
 
template<typename _TYPE_>
class Iterateur_Source_VEF_Face: public Iterateur_Source_base
{
  inline unsigned taille_memoire() const override { throw; }
 
  inline int duplique() const override
  {
    Iterateur_Source_VEF_Face* xxx = new  Iterateur_Source_VEF_Face(*this);
    if(!xxx) Process::exit("Not enough memory !");
    return xxx->numero();
  }
 
public:
  Iterateur_Source_VEF_Face() : nb_faces_(-1), nb_faces_elem_(-1), premiere_face_std_(-1) { }
  Iterateur_Source_VEF_Face(const Iterateur_Source_VEF_Face<_TYPE_>& iter) : Iterateur_Source_base(iter), evaluateur_source_face_(iter.evaluateur_source_face_),
    nb_faces_(iter.nb_faces_), nb_faces_elem_(iter.nb_faces_elem_), premiere_face_std_(iter.premiere_face_std_) { }
 
  DoubleTab& ajouter(DoubleTab&) const override;
 
  void completer_() override
  {
    nb_faces_ = ref_cast(Domaine_VEF,le_dom.valeur()).nb_faces();
    nb_faces_elem_ = le_dom->domaine().nb_faces_elem();
    premiere_face_std_ = ref_cast(Domaine_VEF,le_dom.valeur()).premiere_face_std();
  }
 
  inline Evaluateur_Source_VEF_Face& evaluateur() override { return static_cast<Evaluateur_Source_VEF_Face&> (evaluateur_source_face_); }
  inline const Evaluateur_Source_VEF_Face& evaluateur() const { return static_cast<const Evaluateur_Source_VEF_Face&> (evaluateur_source_face_); }
 
protected:
  int initialiser(double tps) override;
  void remplir_volumes_cl_dirichlet();
 
  inline const int& faces_doubles(int num_face) const { return ref_cast(Domaine_VEF,le_dom.valeur()).faces_doubles()[num_face]; }
  inline double volumes_entrelaces_Cl(int& num_face) const { return volumes_cl_dirichlet_[num_face]; }
  inline double volumes_entrelaces(int& num_face) const { return ref_cast(Domaine_VEF,le_dom.valeur()).volumes_entrelaces()[num_face]; }
  inline int face_voisins(int num_face, int dir) const { return ref_cast(Domaine_VEF,le_dom.valeur()).face_voisins(num_face, dir); }
  inline int elem_faces(int num_elem, int i) const { return ref_cast(Domaine_VEF,le_dom.valeur()).elem_faces(num_elem, i); }
 
private:
  _TYPE_ evaluateur_source_face_;
  int nb_faces_, nb_faces_elem_, premiere_face_std_;
  mutable DoubleTab tab_coef_;
  DoubleVect volumes_cl_dirichlet_;
 
  public_for_cuda
  template <typename Type_Double>  DoubleTab& ajouter_faces_standard(const int, DoubleTab& ) const;
  template <typename Type_Double> DoubleTab& ajouter_faces_non_standard(const int, DoubleTab& ) const;
};
 
template<typename _TYPE_>
inline int Iterateur_Source_VEF_Face<_TYPE_>::initialiser(double tps)
{
  remplir_volumes_cl_dirichlet();
  evaluateur().changer_volumes_entrelaces_Cl(volumes_cl_dirichlet_);
  return 1;
}
 
template<typename _TYPE_>
DoubleTab& Iterateur_Source_VEF_Face<_TYPE_>::ajouter(DoubleTab& resu) const
{
  ((_TYPE_&) (evaluateur_source_face_)).mettre_a_jour();
 
  assert(resu.nb_dim() < 3);
  int ncomp = resu.line_size();
  int nb_faces_tot = ref_cast(Domaine_VEF,le_dom.valeur()).nb_faces_tot();
  DoubleVect& bilan = so_base->bilan();
  if (bilan.size_array()!=ncomp) bilan.resize(ncomp);
  bilan = 0;
  if (tab_coef_.size_array()!=nb_faces_tot) tab_coef_.resize(nb_faces_tot, RESIZE_OPTIONS::NOCOPY_NOINIT);
  tab_coef_ = 1;
  if (equation_divisee_par_rho())
    {
      const Milieu_base& milieu = la_zcl->equation().milieu();
      const Champ_base& rho = milieu.masse_volumique();
      if (sub_type(Champ_Uniforme, rho))
        tab_coef_ = rho.valeurs()(0, 0);
      else
        {
          const DoubleTab& val_rho = rho.valeurs();
          const IntTab& face_vois = le_dom->face_voisins();
          const DoubleVect& volumes = ref_cast(Domaine_VEF,le_dom.valeur()).volumes();
          tab_coef_ = 0.;
          ToDo_Kokkos("critical");
          for (int fac = 0; fac < nb_faces_tot; fac++)
            {
              int elem1 = face_vois(fac, 0);
              int elem2 = face_vois(fac, 1);
              double vol = 0;
              if (elem1 != -1)
                {
                  tab_coef_(fac) += val_rho(elem1) * volumes(elem1);
                  vol += volumes(elem1);
                }
              if (elem2 != -1)
                {
                  tab_coef_(fac) += val_rho(elem2) * volumes(elem2);
                  vol += volumes(elem2);
                }
              tab_coef_(fac) /= vol;
            }
        }
    }
  if (ncomp == 1)
    {
      ajouter_faces_non_standard<SingleDouble>(ncomp,resu);
      ajouter_faces_standard<SingleDouble>(ncomp,resu);
    }
  else
    {
      ajouter_faces_non_standard<ArrOfDouble>(ncomp,resu);
      ajouter_faces_standard<ArrOfDouble>(ncomp,resu);
    }
  return resu;
}
 
template<typename _TYPE_>
void Iterateur_Source_VEF_Face<_TYPE_>::remplir_volumes_cl_dirichlet()
{
  Domaine_VEF& zvef = ref_cast(Domaine_VEF,le_dom.valeur());
  Domaine_Cl_VEF& zclvef = ref_cast(Domaine_Cl_VEF,la_zcl.valeur());
  zvef.creer_tableau_faces(volumes_cl_dirichlet_);
  DoubleVect& marq = volumes_cl_dirichlet_;
  for (int f = 0; f < zvef.premiere_face_std(); f++)
    marq[f] = zclvef.volumes_entrelaces_Cl()[f];
  for (int f = zvef.premiere_face_std(); f < zvef.nb_faces(); f++)
    marq[f] = volumes_entrelaces(f);
  for (int num_cl = 0; num_cl < zvef.nb_front_Cl() * 0; num_cl++)
    {
      const Cond_lim& la_cl = zclvef.les_conditions_limites(num_cl);
      const Front_VF& le_bord = ref_cast(Front_VF, la_cl->frontiere_dis());
      int nf = le_bord.nb_faces();
      if (sub_type(Dirichlet, la_cl.valeur()))
        for (int ind_face = 0; ind_face < nf; ind_face++)
          {
            int num_face = le_bord.num_face(ind_face);
            if (volumes_entrelaces_Cl(num_face) == 0)
              marq[num_face] = 1;
          }
    }
  marq.echange_espace_virtuel();
}
 
template<typename _TYPE_> template<typename Type_Double>
DoubleTab& Iterateur_Source_VEF_Face<_TYPE_>::ajouter_faces_non_standard(const int ncomp, DoubleTab& tab_resu) const
{
  DoubleVect& tab_bilan = so_base->bilan();
  for (int num_cl = 0; num_cl < le_dom->nb_front_Cl(); num_cl++)
    {
      const Cond_lim& la_cl = la_zcl->les_conditions_limites(num_cl);
      const Front_VF& le_bord = ref_cast(Front_VF, la_cl->frontiere_dis());
      int nf = le_bord.nb_faces_tot();
      bool Dirichlet = sub_type(Dirichlet, la_cl.valeur());
      if (evaluateur().has_view())
        {
          const int nb_faces = nb_faces_, nb_faces_elem = nb_faces_elem_; // Remember *never* use an attribute in Kernel else crash !
          _TYPE_ evaluateur_source_face;
          evaluateur_source_face.set(evaluateur_source_face_);
          CIntArrView faces_doubles = ref_cast(Domaine_VEF,le_dom.valeur()).faces_doubles().view_ro();
          CIntTabView elem_faces = ref_cast(Domaine_VEF,le_dom.valeur()).elem_faces().view_ro();
          CIntTabView face_voisins = ref_cast(Domaine_VEF,le_dom.valeur()).face_voisins().view_ro();
          CDoubleArrView volumes_entrelaces_Cl = volumes_cl_dirichlet_.view_ro();
          CIntArrView le_bord_num_face = le_bord.num_face().view_ro();
          CDoubleArrView coef = static_cast<const ArrOfDouble&>(tab_coef_).view_ro();
          DoubleArrView bilan = tab_bilan.view_rw();
          DoubleTabView resu = tab_resu.view_rw();
          Kokkos::View<double**, DoubleTabView::array_layout> source_view("source", nf, ncomp);
          Kokkos::parallel_for(start_gpu_timer(__KERNEL_NAME__), range_1D(0, nf), KOKKOS_LAMBDA(const int ind_face)
          {
            int num_face = le_bord_num_face(ind_face);
            auto source = Kokkos::subview(source_view, ind_face, Kokkos::ALL());
            evaluateur_source_face.calculer_terme_source_non_standard_view(num_face, source);
            if (volumes_entrelaces_Cl(num_face) == 0)
              {
                int faces_dirichlet = 0;
                for (int i = 0; i < nb_faces_elem; i++)
                  {
                    int face_voisine = elem_faces(face_voisins(num_face, 0), i);
                    if (volumes_entrelaces_Cl(face_voisine) == 0)
                      faces_dirichlet += 1;
                  }
                for (int i = 0; i < nb_faces_elem; i++)
                  {
                    int face_voisine = elem_faces(face_voisins(num_face, 0), i);
                    if (volumes_entrelaces_Cl(face_voisine) != 0)
                      for (int k = 0; k < ncomp; k++)
                        {
                          Kokkos::atomic_add(&resu(face_voisine, k), + source(k) / (nb_faces_elem - faces_dirichlet));
                          if (face_voisine < nb_faces)
                            {
                              double contribution = (faces_doubles(face_voisine) == 1) ? 0.5 : 1;
                              Kokkos::atomic_add(&bilan(k), + contribution * coef(face_voisine) * source(k) /
                                                 (nb_faces_elem - faces_dirichlet));
                            }
                        }
                  }
              }
            else
              {
                for (int k = 0; k < ncomp; k++)
                  {
                    resu(num_face, k) += source(k);
                    if (num_face < nb_faces && !Dirichlet)
                      {
                        double contribution = (faces_doubles(num_face) == 1) ? 0.5 : 1;
                        Kokkos::atomic_add(&bilan(k), + contribution * coef(num_face) * source(k));
                      }
                  }
              }
          });
          end_gpu_timer(__KERNEL_NAME__);
        }
      else
        {
          Type_Double source(ncomp);
          ToDo_Kokkos("critical");
          for (int ind_face = 0; ind_face < nf; ind_face++)
            {
              int num_face = le_bord.num_face(ind_face);
              evaluateur_source_face_.calculer_terme_source_non_standard(num_face, source);
              if (volumes_entrelaces_Cl(num_face) == 0)
                {
                  int faces_dirichlet = 0;
                  for (int i = 0; i < nb_faces_elem_; i++)
                    {
                      int face_voisine = elem_faces(face_voisins(num_face, 0), i);
                      if (volumes_entrelaces_Cl(face_voisine) == 0)
                        faces_dirichlet += 1;
                    }
                  for (int i = 0; i < nb_faces_elem_; i++)
                    {
                      int face_voisine = elem_faces(face_voisins(num_face, 0), i);
                      if (volumes_entrelaces_Cl(face_voisine) != 0)
                        for (int k = 0; k < ncomp; k++)
                          {
                            tab_resu(face_voisine, k) += source(k) / (nb_faces_elem_ - faces_dirichlet);
                            if (face_voisine < nb_faces_)
                              {
                                double contribution = (faces_doubles(face_voisine) == 1) ? 0.5 : 1;
                                tab_bilan(k) += contribution * tab_coef_(face_voisine) * source(k) /
                                                (nb_faces_elem_ - faces_dirichlet);
                              }
                          }
                    }
                }
              else
                {
                  for (int k = 0; k < ncomp; k++)
                    {
                      tab_resu(num_face, k) += source(k);
                      if (num_face < nb_faces_ && !Dirichlet)
                        {
                          double contribution = (faces_doubles(num_face) == 1) ? 0.5 : 1;
                          tab_bilan(k) += contribution * tab_coef_(num_face) * source(k);
                        }
                    }
                }
            }
        }
    }
  if (evaluateur().has_view())
    {
      const int premiere_face_std = premiere_face_std_; // Remember *never* use an attribute in Kernel else crash !
      const int premiere_face_int = ref_cast(Domaine_VEF, le_dom.valeur()).premiere_face_int();
      _TYPE_ evaluateur_source_face;
      evaluateur_source_face.set(evaluateur_source_face_);
      CIntArrView faces_doubles = ref_cast(Domaine_VEF,le_dom.valeur()).faces_doubles().view_ro();
      CDoubleArrView coef = static_cast<const ArrOfDouble&>(tab_coef_).view_ro();
      DoubleArrView bilan = tab_bilan.view_rw();
      DoubleTabView resu = tab_resu.view_rw();
      Kokkos::View<double**, DoubleTabView::array_layout> source_view("source", premiere_face_std-premiere_face_int, ncomp);
      Kokkos::parallel_for(start_gpu_timer(__KERNEL_NAME__), range_1D(premiere_face_int, premiere_face_std), KOKKOS_LAMBDA(const int num_face)
      {
        auto source = Kokkos::subview(source_view, num_face-premiere_face_int, Kokkos::ALL());
        evaluateur_source_face.calculer_terme_source_non_standard_view(num_face, source);
        for (int k = 0; k < ncomp; k++)
          {
            resu(num_face, k) += source(k);
            double contribution = (faces_doubles(num_face) == 1) ? 0.5 : 1;
            Kokkos::atomic_add(&bilan(k), contribution * coef(num_face) * source(k));
          }
      });
      end_gpu_timer(__KERNEL_NAME__);
    }
  else
    {
      ToDo_Kokkos("critical");
      Type_Double source(ncomp);
      const int premiere_face_int = ref_cast(Domaine_VEF, le_dom.valeur()).premiere_face_int();
      for (int num_face = premiere_face_int; num_face < premiere_face_std_; num_face++)
        {
          evaluateur_source_face_.calculer_terme_source_non_standard(num_face, source);
          for (int k = 0; k < ncomp; k++)
            {
              tab_resu(num_face, k) += source(k);
              double contribution = (faces_doubles(num_face) == 1) ? 0.5 : 1;
              tab_bilan(k) += contribution * tab_coef_(num_face) * source(k);
            }
        }
    }
  return tab_resu;
}
 
template<typename _TYPE_> template<typename Type_Double>
DoubleTab& Iterateur_Source_VEF_Face<_TYPE_>::ajouter_faces_standard(const int ncomp, DoubleTab& tab_resu) const
{
  DoubleVect& tab_bilan = so_base->bilan();
  if (evaluateur().has_view())
    {
      const int nb_faces = nb_faces_, premiere_face_std = premiere_face_std_; // Remember *never* use an attribute in Kernel else crash !
      _TYPE_ evaluateur_source_face;
      evaluateur_source_face.set(evaluateur_source_face_);
      CIntArrView faces_doubles = ref_cast(Domaine_VEF,le_dom.valeur()).faces_doubles().view_ro();
      CDoubleArrView coef = static_cast<const ArrOfDouble&>(tab_coef_).view_ro();
      DoubleArrView bilan = tab_bilan.view_rw();
      DoubleTabView resu = tab_resu.view_rw();
      Kokkos::View<double**, DoubleTabView::array_layout> source_view("source", nb_faces-premiere_face_std, ncomp);
      Kokkos::parallel_for(start_gpu_timer(__KERNEL_NAME__), range_1D(premiere_face_std, nb_faces), KOKKOS_LAMBDA(const int num_face)
      {
        auto source = Kokkos::subview(source_view, num_face-premiere_face_std, Kokkos::ALL());
        evaluateur_source_face.calculer_terme_source_standard_view(num_face, source);
        for (int k = 0; k < ncomp; k++)
          {
            resu(num_face, k) += source(k);
            double contribution = (faces_doubles(num_face) == 1) ? 0.5 : 1;
            Kokkos::atomic_add(&bilan(k), contribution * coef(num_face) * source(k));
          }
      });
      end_gpu_timer(__KERNEL_NAME__);
    }
  else
    {
      ToDo_Kokkos("critical");
      Type_Double source(ncomp);
      for (int num_face = premiere_face_std_; num_face < nb_faces_; num_face++)
        {
          evaluateur_source_face_.calculer_terme_source_standard(num_face, source);
          for (int k = 0; k < ncomp; k++)
            {
              tab_resu(num_face, k) += source(k);
              double contribution = (faces_doubles(num_face) == 1) ? 0.5 : 1;
              tab_bilan(k) += contribution * tab_coef_(num_face) * source(k);
            }
        }
    }
  return tab_resu;
}
 
#endif /* Iterateur_Source_VEF_Face_included */