Sources_Multiphase_base.cpp

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#include <Sources_Multiphase_base.h>
 
#include <Probleme_base.h>
#include <Matrix_tools.h>
 
Implemente_base(Sources_Multiphase_base, "Sources_Multiphase_base", Source_base);
Sortie& Sources_Multiphase_base::printOn(Sortie& os) const { return os; }
Entree& Sources_Multiphase_base::readOn(Entree& is) { return is; }
 
/*! @brief Allocates diagonal stencils in the given matrices for field names
 *         listed in diagonal_fields (and optionally "pression" with its
 *         special index mapping).
 */
void Sources_Multiphase_base::dimensionner_blocs_diagonal(matrices_t matrices, const Probleme_base& pb, int ne, int ne_tot, int Nk,
                                                          const std::set<std::string>& diagonal_fields, bool handle_pression)
{
  for (auto &&n_m : matrices)
    {
      bool is_diag = diagonal_fields.count(n_m.first);
      bool is_pression = handle_pression && (n_m.first == "pression");
      if (!is_diag && !is_pression) continue;
 
      Matrice_Morse& mat = *n_m.second;
      Matrice_Morse mat2;
      const DoubleTab& dep = pb.get_champ(n_m.first.c_str()).valeurs();
      const int nc = dep.dimension_tot(0);
      const int M = dep.line_size();
      Stencil sten(0, 2);
 
      if (is_diag)
        for (int e = 0; e < ne; e++)
          for (int n = 0; n < Nk; n++)
            if (n < M)
              sten.append_line(Nk * e + n, M * e + n);
 
      if (is_pression)
        for (int e = 0; e < ne; e++)
          for (int n = 0, m = 0; n < Nk; n++, m += (M > 1))
            sten.append_line(Nk * e + n, M * e + m);
 
      Matrix_tools::allocate_morse_matrix(Nk * ne_tot, M * nc, sten, mat2);
      mat.nb_colonnes() ? mat += mat2 : mat = mat2;
    }
}