Assembleur_P_PolyMAC_CDO.cpp

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#include <Neumann_sortie_libre.h>
#include <Assembleur_P_PolyMAC_CDO.h>
#include <Domaine_Cl_PolyMAC_family.h>
#include <Champ_Face_PolyMAC_CDO.h>
#include <Matrice_Diagonale.h>
#include <Matrice_Morse_Sym.h>
#include <Matrice_Bloc_Sym.h>
#include <Static_Int_Lists.h>
#include <Domaine_PolyMAC_CDO.h>
#include <TRUSTTab_parts.h>
#include <Operateur_Grad.h>
#include <Matrix_tools.h>
#include <Milieu_base.h>
#include <Array_tools.h>
#include <Dirichlet.h>
#include <Debog.h>
#include <Perf_counters.h>
 
Implemente_instanciable(Assembleur_P_PolyMAC_CDO,"Assembleur_P_PolyMAC_CDO",Assembleur_base);
 
Sortie& Assembleur_P_PolyMAC_CDO::printOn(Sortie& s) const { return s << que_suis_je() << " " << le_nom(); }
 
Entree& Assembleur_P_PolyMAC_CDO::readOn(Entree& s) { return Assembleur_base::readOn(s); }
 
int Assembleur_P_PolyMAC_CDO::assembler(Matrice& la_matrice)
{
  DoubleVect rien;
  return assembler_mat(la_matrice, rien, 1, 1);
}
 
int Assembleur_P_PolyMAC_CDO::assembler_rho_variable(Matrice& la_matrice, const Champ_Don_base& rho)
{
  abort();
  return 0;
}
 
int Assembleur_P_PolyMAC_CDO::assembler_mat(Matrice& la_matrice, const DoubleVect& diag, int incr_pression, int resoudre_en_u)
{
  set_resoudre_increment_pression(incr_pression);
  set_resoudre_en_u(resoudre_en_u);
  Cerr << "Assemblage de la matrice de pression ... ";
  statistics().begin_count(STD_COUNTERS::matrix_assembly,statistics().get_last_opened_counter_level()+1);
  la_matrice.typer("Matrice_Morse");
  Matrice_Morse& mat = ref_cast(Matrice_Morse, la_matrice.valeur());
 
  const Domaine_PolyMAC_CDO& domaine = ref_cast(Domaine_PolyMAC_CDO, le_dom_PolyMAC_CDO.valeur());
  const IntTab& e_f = domaine.elem_faces(), &f_e = domaine.face_voisins();
  const DoubleVect& fs = domaine.face_surfaces(), &pf = mon_equation->milieu().porosite_face(), &pe = mon_equation->milieu().porosite_elem(), &ve = domaine.volumes();
  const Champ_Face_PolyMAC_CDO& ch = ref_cast(Champ_Face_PolyMAC_CDO, mon_equation->inconnue());
  int i, j, k, e, f, fb, n_f, ne = domaine.nb_elem(), ne_tot = domaine.nb_elem_tot(), nf = domaine.nb_faces(), nf_tot = domaine.nb_faces_tot(), na_tot =
                                                                                                                          dimension < 3 ? domaine.domaine().nb_som_tot() : domaine.domaine().nb_aretes_tot(), infoo=-1;
  domaine.init_m2(), ch.fcl();
 
  DoubleTrav W(e_f.dimension(1), e_f.dimension(1)), W0(e_f.dimension(1), e_f.dimension(1));
 
 
  //in the absence of pressure BCs, we add P(0) = 0 on process 0
  has_P_ref = 0;
  for (int n_bord = 0; n_bord < le_dom_PolyMAC_CDO->nb_front_Cl(); n_bord++)
    if (sub_type(Neumann_sortie_libre, le_dom_Cl_PolyMAC_CDO->les_conditions_limites(n_bord).valeur()))
      has_P_ref = 1;
 
  /* 1. pressure matrix stencil and rec stencil: only on the first pass */
  if (!stencil_done)
    {
      Stencil stencil_M(0, 2), stencil_R(0, 2);
 
      for (e = 0; e < ne_tot; e++)
        {
          for (i = 0, j = domaine.m2d(e), n_f = domaine.m2d(e + 1) - domaine.m2d(e); i < n_f; i++, j++)
            {
              for (k = domaine.w2i(j), f = e_f(e, i); f < nf && k < domaine.w2i(j + 1); k++)
                {
                  fb = e_f(e, domaine.w2j(k));
                  stencil_M.append_line(ne_tot + f, ne_tot + fb);
                  if (e == f_e(f, 0))
                    stencil_R.append_line(f, ne_tot + fb);
                }
              if (ch.fcl()(f, 0) != 1 && e < ne)
                stencil_M.append_line(e, ne_tot + f);
              if (ch.fcl()(f, 0) != 1 && f < nf)
                stencil_M.append_line(ne_tot + f, e);
              if (e == f_e(f, 0) && f < nf)
                stencil_R.append_line(f, e);
            }
          if (e < ne)
            stencil_M.append_line(e, e);
          // if (!has_P_ref && !Process::me() && e < ne) stencil_M.append_line(0, e);
        }
 
      tableau_trier_retirer_doublons(stencil_M), tableau_trier_retirer_doublons(stencil_R);
      Matrix_tools::allocate_morse_matrix(ne_tot + nf_tot, ne_tot + nf_tot, stencil_M, mat);
      Matrix_tools::allocate_morse_matrix(nf_tot + na_tot, ne_tot + nf_tot, stencil_R, rec);
      tab1.ref_array(mat.get_set_tab1()), tab2.ref_array(mat.get_set_tab2());
      stencil_done = 1;
    }
  else //otherwise, reuse existing
    {
      mat.get_set_tab1().ref_array(tab1);
      mat.get_set_tab2().ref_array(tab2);
      mat.get_set_coeff().resize(tab2.size_array());
      mat.set_nb_columns(ne_tot + nf_tot);
      rec.get_set_coeff() = 0;
    }
 
  /* 2. fill the coefficients */
  for (e = 0; e < ne_tot; e++)
    {
      n_f = domaine.m2d(e + 1) - domaine.m2d(e), W0.resize(n_f, n_f), W.resize(n_f, n_f);
      for (i = 0, j = domaine.m2d(e), W0 = 0; i < n_f; i++, j++)
        for (k = domaine.w2i(j); k < domaine.w2i(j + 1); k++)
          W0(i, domaine.w2j(k)) = domaine.w2c(k);
      if (!diag.size())
        W = W0; //no diagonal correction -> take W as is
      else //diagonal correction -> re-invert m2 + diag
        {
          //matrix m2 + diagonal correction
          for (i = 0, j = domaine.m2d(e), W = 0; i < n_f; i++, j++)
            for (k = domaine.m2i(j); k < domaine.m2i(j + 1); k++)
              W(i, domaine.m2j(k)) = domaine.m2c(k);
          for (i = 0; i < n_f; i++)
            f = e_f(e, i), W(i, i) += diag(f) * domaine.volumes_entrelaces_dir()(f, e != f_e(f, 0)) / domaine.volumes_entrelaces(f) / ve(e);
          //Cholesky inversion (Lapack) + zeroing small coefficients + manual fill of lower triangular part
          char uplo = 'U';
          F77NAME(dpotrf)(&uplo, &n_f, W.addr(), &n_f, &infoo);
          F77NAME(dpotri)(&uplo, &n_f, W.addr(), &n_f, &infoo);
          for (i = 0; i < n_f; i++)
            for (j = i + 1; j < n_f; j++)
              W(i, j) = W(j, i);
          for (i = 0; i < n_f; i++)
            for (j = 0; j < n_f; j++)
              if (W0(i, j) == 0)
                W(i, j) = 0;
        }
 
      //filling the matrix in (dPe, dPf)
      //on Neumann BCs, replace the equation on dPf by dPf = 0 and remove dPf from other equations (for symmetry)
      double mee, mef, mff, rfe, rff; //to add to m[e][e], m[e][f] / m[f][e], m[f][f'], r[f][e], r[f][f']
      for (i = 0, mee = 0; i < n_f; mee += mef, i++)
        {
          for (f = e_f(e, i), mef = 0, rfe = 0, j = 0; f < nf && j < n_f; mef += mff, rfe += rff, j++, mff = 0, rff = 0)
            {
              fb = e_f(e, j), mff = fs(f) * fs(fb) * pe(e) * W(i, j) / ve(e), rff = e == f_e(f, 0) ? fs(fb) * pe(e) * W(i, j) / (ve(e) * pf(f)) : 0;
              if (mff && ch.fcl()(f, 0) != 1 && ch.fcl()(fb, 0) != 1)
                mat(ne_tot + f, ne_tot + fb) += mff;
              else if (ch.fcl()(f, 0) == 1 && f == fb)
                mat(ne_tot + f, ne_tot + fb) += 1;
              if (rff)
                rec(f, ne_tot + fb) += rff;
            }
          if (ch.fcl()(f, 0) != 1 && e < ne)
            mat(e, ne_tot + f) -= mef;
          if (ch.fcl()(f, 0) != 1 && f < nf)
            mat(ne_tot + f, e) -= mef;
          if (e == f_e(f, 0) && f < nf)
            rec(f, e) -= rfe;
        }
      if (e < ne)
        mat(e, e) += mee;
    }
 
  if (!has_P_ref && !Process::me())
    mat(0, 0) *= 2;
  // {
  //   double coeff = mat(0, 0) / ne;
  //   for (e = 0; e < ne; e++) mat(0, e) += coeff;
  // }
  Cerr << statistics().get_time_since_last_open(STD_COUNTERS::matrix_assembly) << " s" << finl;
  statistics().end_count(STD_COUNTERS::matrix_assembly);
  return 1;
}
 
/*! @brief Assemble the pressure matrix for a quasi-compressible fluid; laplacian(P) is replaced by div(grad(P)/rho).
 *
 * @param (DoubleTab& tab_rho) mass density. Default values:
 * @return (int) always returns 1
 * @throws PolyMAC_CDO boundary effects:
 */
int Assembleur_P_PolyMAC_CDO::assembler_QC(const DoubleTab& tab_rho, Matrice& matrice)
{
  Cerr << "Assemblage de la matrice de pression pour Quasi Compressible en cours..." << finl;
  assembler(matrice);
  set_resoudre_increment_pression(1);
  set_resoudre_en_u(0);
  abort();
  Matrice_Bloc& matrice_bloc = ref_cast(Matrice_Bloc, matrice.valeur());
  Matrice_Morse_Sym& la_matrice = ref_cast(Matrice_Morse_Sym, matrice_bloc.get_bloc(0, 0).valeur());
  if ((la_matrice.get_est_definie() != 1) && (1))
    {
      Cerr << "Pas de pression imposee  --> P(0)=0" << finl;
      if (je_suis_maitre())
        la_matrice(0, 0) *= 2;
      la_matrice.set_est_definie(1);
    }
 
  Cerr << "Fin de l'assemblage de la matrice de pression" << finl;
  return 1;
}
 
int Assembleur_P_PolyMAC_CDO::modifier_secmem(DoubleTab& secmem)
{
  Debog::verifier("secmem dans modifier secmem", secmem);
 
  const Domaine_PolyMAC_CDO& le_dom = le_dom_PolyMAC_CDO.valeur();
  const Domaine_Cl_PolyMAC_family& le_dom_cl = le_dom_Cl_PolyMAC_CDO.valeur();
  int nb_cond_lim = le_dom_cl.nb_cond_lim();
  const IntTab& face_voisins = le_dom.face_voisins();
 
  // Modification of the right-hand side:
  int i;
  for (i = 0; i < nb_cond_lim; i++)
    {
      const Cond_lim_base& la_cl_base = le_dom_cl.les_conditions_limites(i).valeur();
      const Front_VF& la_front_dis = ref_cast(Front_VF, la_cl_base.frontiere_dis());
      const Champ_front_base& champ_front = la_cl_base.champ_front();
      int ndeb = la_front_dis.num_premiere_face();
      int nfin = ndeb + la_front_dis.nb_faces();
 
      // GF switched to pressure increment formulation
      if ((sub_type(Neumann_sortie_libre, la_cl_base)) && (!get_resoudre_increment_pression()))
        {
          double Pimp, coPolyMAC_CDO;
          const Neumann_sortie_libre& la_cl_Neumann = ref_cast(Neumann_sortie_libre, la_cl_base);
          // const Front_VF& la_front_dis = ref_cast(Front_VF,la_cl_base.frontiere_dis());
          //int ndeb = la_front_dis.num_premiere_face();
          //int nfin = ndeb + la_front_dis.nb_faces();
          for (int num_face = ndeb; num_face < nfin; num_face++)
            {
              Pimp = la_cl_Neumann.flux_impose(num_face - ndeb);
              coPolyMAC_CDO = les_coeff_pression[num_face] * Pimp;
              secmem[face_voisins(num_face, 0)] += coPolyMAC_CDO;
            }
        }
      else if (sub_type(Dirichlet, la_cl_base) && champ_front.instationnaire() && get_resoudre_en_u() )
        {
          const DoubleTab& Gpt = champ_front.derivee_en_temps();
          bool ch_unif = (Gpt.nb_dim() == 1);
          for (int num_face = ndeb; num_face < nfin; num_face++)
            {
              double Stt = 0.;
              for (int k = 0; k < dimension; k++)
                {
                  double Gpoint = ch_unif ? Gpt(k) : Gpt(num_face - ndeb, k);
                  Stt -= Gpoint * le_dom.face_normales(num_face, k);
                }
              secmem(face_voisins(num_face, 0)) += Stt;
            }
        }
    }
 
  secmem.echange_espace_virtuel();
  Debog::verifier("secmem dans modifier secmem fin", secmem);
  return 1;
}
 
int Assembleur_P_PolyMAC_CDO::modifier_solution(DoubleTab& pression)
{
  Debog::verifier("pression dans modifier solution in", pression);
  //face pressures are not considered in the min (solveur_U_P does not update them)
  DoubleTab_parts ppart(pression);
  if (!has_P_ref) pression -= mp_min_vect(ppart[0]);
  return 1;
}
 
const Domaine_dis_base& Assembleur_P_PolyMAC_CDO::domaine_dis_base() const
{
  return le_dom_PolyMAC_CDO.valeur();
}
 
const Domaine_Cl_dis_base& Assembleur_P_PolyMAC_CDO::domaine_Cl_dis_base() const
{
  return le_dom_Cl_PolyMAC_CDO.valeur();
}
 
void Assembleur_P_PolyMAC_CDO::associer_domaine_dis_base(const Domaine_dis_base& le_dom_dis)
{
  le_dom_PolyMAC_CDO = ref_cast(Domaine_PolyMAC_CDO, le_dom_dis);
}
 
void Assembleur_P_PolyMAC_CDO::associer_domaine_cl_dis_base(const Domaine_Cl_dis_base& le_dom_Cl_dis)
{
  le_dom_Cl_PolyMAC_CDO = ref_cast(Domaine_Cl_PolyMAC_family, le_dom_Cl_dis);
}
 
void Assembleur_P_PolyMAC_CDO::completer(const Equation_base& Eqn)
{
  mon_equation = Eqn;
  stencil_done = 0;
}