SolveurSys_base.cpp

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#include <SolveurSys_base.h>
#include <EcrFicCollecte.h>
#include <Matrice_Base.h>
#include <MD_Vector_tools.h>
#include <SChaine.h>
#include <Motcle.h>
 
Implemente_base_sans_constructeur(SolveurSys_base,"SolveurSys_base",Objet_U);
// XD solveur_sys_base class_generic solveur_sys_base INHERITS_BRACE Basic class to solve the linear system.
 
SolveurSys_base::SolveurSys_base()
{
}
 
Sortie& SolveurSys_base::printOn(Sortie& s ) const
{
  return s  << que_suis_je();
}
 
Entree& SolveurSys_base::readOn(Entree& is )
{
  return is;
}
 
int SolveurSys_base::resoudre_systeme(const Matrice_Base& A,
                                      const DoubleVect& b,
                                      DoubleVect& x,
                                      int niter_max)
{
  save_matrice_secmem_conditionnel(A, b, x);
  return resoudre_systeme(A,b,x);
}
 
 
void SolveurSys_base::save_matrice_secmem_conditionnel(const Matrice_Base& la_matrice, const DoubleVect& secmem, const DoubleVect& solution, int binaire2 )
{
  int binaire=binaire2;
  if (save_matrice_==1)
    {
      // simulate writing a Matrice rather than a Matrice_Base
      // to facilitate re-reading
      {
        EcrFicCollecte sortie;
        sortie.set_bin(binaire);
        sortie.ouvrir("Matrice.sa");
        sortie<<la_matrice.que_suis_je()<<finl;
        sortie<<la_matrice;
      }
      // save the RHS vector (Secmem) with virtual spaces !!!!!
      {
        EcrFicCollecte sortie;
        sortie.set_bin(binaire);
        sortie.ouvrir("Secmem.sa");
        MD_Vector_tools::dump_vector_with_md(secmem, sortie);
      }
      // save the solution with virtual spaces !!!!!
      {
        EcrFicCollecte sortie;
        sortie.set_bin(binaire);
        sortie.ouvrir("Solution.sa");
        MD_Vector_tools::dump_vector_with_md(solution, sortie);
      }
      Cout <<"Saving of the matrix, secmem and solution ended."<<finl;
    }
}
 
 
// Read solver parameters
// Ex: solveur type { ... }
// chaine_lue_ = "type { ... }"
void SolveurSys_base::lecture(Entree& is)
{
  // Read the keyword string
  Motcle accolade_ouverte("{");
  Motcle accolade_fermee("}");
  Motcle motlu;
  Nom nomlu;
  is >> motlu;
  SChaine prov;
  prov<<motlu;
  is >> motlu;
  if (motlu != accolade_ouverte)
    {
      Cerr << "Error while reading parameters of Petsc: " << finl;
      Cerr << "We expected " << accolade_ouverte << " instead of " << motlu << finl;
      Process::exit();
    }
  prov<<" { ";
  int nb_acco=1;
  while (nb_acco!=0)
    {
      is >> nomlu;
      if ((Motcle)nomlu=="READ_MATRIX") set_read_matrix(true);
      prov<<nomlu<<" ";
      if (nomlu==accolade_ouverte)
        nb_acco++;
      else if (nomlu==accolade_fermee)
        nb_acco--;
    }
  chaine_lue_=prov.get_str();
}