Probleme_FTD_IJK_tools.cpp

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#include <Probleme_FTD_IJK_tools.h>
#include <Probleme_FTD_IJK_base.h>
 
void copy_field_values(IJK_Field_double& field, const IJK_Field_double& field_to_copy)
{
  const int ni = field.ni(), nj = field.nj(), nk = field.nk();
 
  const int ni_to_copy = field_to_copy.ni(), nj_to_copy = field_to_copy.nj(), nk_to_copy = field_to_copy.nk();
 
  const bool bool_dim = (ni == ni_to_copy && nj == nj_to_copy && nk == nk_to_copy);
 
  if (!bool_dim)
    Process::exit();
 
  for (int k = 0; k < nk; k++)
    for (int j = 0; j < nj; j++)
      for (int i = 0; i < ni; i++)
        field(i,j,k) = field_to_copy(i,j,k);
 
  field.echange_espace_virtuel(field.ghost());
}
 
//  PRODUITS DE CHAMPS
IJK_Field_double scalar_product(const Probleme_FTD_IJK_base& pb, const IJK_Field_vector3_double& V1, const IJK_Field_vector3_double& V2)
{
  /*
   * * ATTENTION : valide pour un maillage cartesien, de maille cubiques uniquement !
   */
  IJK_Field_double resu;
  resu.allocate(pb.domaine_ijk(), Domaine_IJK::ELEM, 3);
 
  const int nk = V1[0].nk();
  if (nk != V2[0].nk())
    Cerr << "scalar product of fields with different dimensions (nk)" << finl;
 
  const int nj = V1[0].nj();
  if (nj != V2[0].nj())
    Cerr << "scalar product of fields with different dimensions (nj)" << finl;
 
  const int ni = V1[0].ni();
  if (ni != V2[0].ni())
    Cerr << "scalar product of fields with different dimensions (ni)" << finl;
 
  for (int k = 0; k < nk; ++k)
    for (int j = 0; j < nj; ++j)
      for (int i = 0; i < ni; ++i)
        {
          resu(i, j, k) = 0.25 * ((V1[0](i, j, k) + V1[0](i + 1, j, k)) * (V2[0](i, j, k) + V2[0](i + 1, j, k)) +
                                  (V1[1](i, j, k) + V1[1](i, j + 1, k)) * (V2[1](i, j, k) + V2[1](i, j + 1, k))
                                  + (V1[2](i, j, k) + V1[2](i, j, k + 1)) * (V2[2](i, j, k) + V2[2](i, j, k + 1)));
        }
  // Communication avec tous les process ?
  return resu;
}
 
IJK_Field_vector3_double scalar_times_vector(const Probleme_FTD_IJK_base& pb, const IJK_Field_double& Sca, const IJK_Field_vector3_double& Vec)
{
  /*
   * Produit d'un champ scalaire (Sca) par un champ de vecteur (Vec).
   * Le champ scalaire est aux centre des elements, le champ de vecteur est aux faces
   * Le resultat reste localise au meme endroit que le champ de vecteur passe en entree.
   * ATTENTION : valide pour un maillage cartesien, de maille cubiques uniquement !
   */
 
  IJK_Field_vector3_double resu;
  allocate_velocity(resu, pb.domaine_ijk(), 3); // j'ai besoin de mettre des cellules ghost ? non, je ne pense pas
 
  const int nk = Vec[0].nk();
  if (nk != Sca.nk())
    Cerr << "scalar fields has different dimension from vector field  (nk)" << finl;
 
  const int nj = Vec[0].nj();
  if (nj != Sca.nj())
    Cerr << "scalar fields has different dimension from vector field  (nj)" << finl;
 
  const int ni = Vec[0].ni();
  if (ni != Sca.ni())
    Cerr << "scalar fields has different dimension from vector field  (ni)" << finl;
 
  for (int k = 0; k < nk; ++k)
    for (int j = 0; j < nj; ++j)
      for (int i = 0; i < ni; ++i)
        {
          resu[0](i, j, k) = 0.5 * (Sca(i - 1, j, k) + Sca(i, j, k)) * Vec[0](i, j, k);
          resu[1](i, j, k) = 0.5 * (Sca(i, j - 1, k) + Sca(i, j, k)) * Vec[1](i, j, k);
          resu[2](i, j, k) = 0.5 * (Sca(i, j, k - 1) + Sca(i, j, k)) * Vec[2](i, j, k);
        }
  // Communication avec tous les process ?
  return resu;
}
 
IJK_Field_double scalar_fields_product(const Probleme_FTD_IJK_base& pb, const IJK_Field_double& S1, const IJK_Field_double& S2, int dir)
{
  /*
   * Produit d'un champ scalaire aux centres (S1) par une des composantes d'un champ de vecteur (S2).
   * Le resultat est localise au meme endroit que le champ de vecteur dont est issu S2.
   * ATTENTION : valide pour un maillage cartesien, de maille cubiques uniquement !
   */
  IJK_Field_double resu;
  resu.allocate(pb.domaine_ijk(), Domaine_IJK::ELEM, 3);
 
  const int nk = S1.nk();
  if (nk != S2.nk())
    Cerr << "scalar fields have different dimensions for the product (nk)" << finl;
 
  const int nj = S1.nj();
  if (nj != S2.nj())
    Cerr << "scalar fields have different dimensions for the product (nj)" << finl;
 
  const int ni = S1.ni();
  if (ni != S2.ni())
    Cerr << "scalar fields have different dimensions for the product (ni)" << finl;
 
  for (int k = 0; k < nk; ++k)
    for (int j = 0; j < nj; ++j)
      for (int i = 0; i < ni; ++i)
        {
          if (dir == 0)
            resu(i, j, k) = 0.5 * (S1(i - 1, j, k) + S1(i, j, k)) * S2(i, j, k);
 
          if (dir == 1)
            resu(i, j, k) = 0.5 * (S1(i, j - 1, k) + S1(i, j, k)) * S2(i, j, k);
 
          if (dir == 2)
            resu(i, j, k) = 0.5 * (S1(i, j, k - 1) + S1(i, j, k)) * S2(i, j, k);
        }
  // Communication avec tous les process ?
  return resu;
}
 
void ecrire_donnees(const Probleme_FTD_IJK_base& pb, const IJK_Field_vector3_double& f3compo, SFichier& le_fichier, const int compo, bool binary)
{
  const IJK_Field_double& f =  f3compo[compo];
 
  ArrOfDouble coord_i, coord_j, coord_k;
  build_local_coords(f, coord_i, coord_j, coord_k);
 
  const int ni = f.ni();
  const int nj = f.nj();
  const int nk = f.nk();
 
  int cnt = 0;
  for (int k = 0; k < nk; k++)
    for (int j = 0; j < nj; j++)
      for (int i = 0; i < ni; i++)
        {
          // le_fichier << coord_i[i] << Separateur::SPACE << coord_j[j] << Separateur::SPACE << coord_k[k] << f(i,j,k) << Separateur::SPACE;
          le_fichier << coord_i[i] << coord_j[j] << coord_k[k] << f(i,j,k);
          cnt++;
        }
 
  const Domaine_IJK& geom = pb.get_domaine();
  const int idx_min = f.get_domaine().get_offset_local(compo);
  if ((idx_min == 0) &&  (geom.get_periodic_flag(compo)))
    {
      double l = geom.get_domain_length(compo) + geom.get_origin(compo);
      if (compo == 0)
        {
          Cerr << "compo 0: " << l << " " << coord_i[0] << finl;
          for (int k = 0; k < nk; k++)
            for (int j = 0; j < nj; j++)
              {
                le_fichier << l << coord_j[j] << coord_k[k] << f(0,j,k);
                cnt++;
              }
        }
      if (compo == 1)
        {
          Cerr << "compo 1: " << l << " " << coord_j[0] << finl;
          for (int k = 0; k < nk; k++)
            for (int i = 0; i < ni; i++)
              {
                le_fichier << coord_i[i] << l << coord_k[k] << f(i,0,k);
                cnt++;
              }
        }
      if (compo == 2)
        {
          for (int j = 0; j < nj; j++)
            for (int i = 0; i < ni; i++)
              {
                le_fichier << coord_i[i] << coord_j[j] << l << f(i,j,0);
                cnt++;
              }
        }
    }
  le_fichier.flush();
  Cerr << "Written " << cnt << " items with (ni, nj, nk)." << ni << " " << nj << " " << nk << finl;
}
 
// Initialize field with specified string expression (must be understood by Parser class)
void dumpxyz_vector(const Probleme_FTD_IJK_base& pb, const IJK_Field_vector3_double& f3compo, const char * filename, bool binary)
{
  int np = Process::nproc();
  int rank = Process::me();
 
  Process::barrier();
  int token = 1;
  if (Process::je_suis_maitre())
    {
      // Write and send token to rank+1
      SFichier le_fichier;
      le_fichier.set_bin(1);
      le_fichier.ouvrir(filename);
      for (unsigned compo=0; compo<3; compo++)
        ecrire_donnees(pb, f3compo, le_fichier, compo, binary);
      if (np > 1)
        envoyer(token, rank, rank+1, 2345);
    }
  else
    {
      int rcv;
      recevoir(rcv, rank-1, rank, 2345);
 
      SFichier le_fichier;
      le_fichier.set_bin(1);
      le_fichier.ouvrir(filename, ios::app);  // in append mode!
      for (unsigned compo=0; compo<3; compo++)
        ecrire_donnees(pb, f3compo, le_fichier, compo, binary);
 
      if (rank != np-1)
        envoyer(token, rank, rank+1, 2345);
    }
 
  Process::barrier();
  Cerr << "Fin de l ecriture dans le fichier XYZ: " << filename << finl;
}