Matrice_Petsc.h

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#ifndef Matrice_Petsc_included
#define Matrice_Petsc_included
 
#include <petsc_for_kernel.h>
#include <Matrice_Base.h>
 
class Matrice_Petsc : public Matrice_Base
{
 
  Declare_instanciable(Matrice_Petsc);
 
public:
 
  int ordre() const override
  {
#ifdef PETSCKSP_H
    PetscInt m,n;
    MatGetLocalSize(Mat_, &m, &n);
    return m == n ? (int)m : 0;
#else
    Cerr << "Matrice_Petsc non disponible." << finl;
    Process::exit();
    return 0;
#endif
  }
 
  int nb_lignes() const override
  {
#ifdef PETSCKSP_H
    PetscInt m,n;
    MatGetLocalSize(Mat_, &m, &n);
    return (int)m;
#else
    Cerr << "Matrice_Petsc non disponible." << finl;
    Process::exit();
    return 0;
#endif
  }
 
  int nb_colonnes() const override
  {
#ifdef PETSCKSP_H
    PetscInt m,n;
    MatGetLocalSize(Mat_, &m, &n);
    return (int)n;
#else
    Cerr << "Matrice_Petsc non disponible." << finl;
    Process::exit();
    return 0;
#endif
  }
 
  void scale(const double x) override
  {
    Cerr << "ToDo" << finl;
    Process::exit(-1);
  }
 
  DoubleVect& ajouter_multvect_(const DoubleVect& x, DoubleVect& r) const override
  {
    Cerr << "ToDo" << finl;
    Process::exit(-1);
    return r;
  }
 
  DoubleVect& ajouter_multvectT_(const DoubleVect& x, DoubleVect& r) const override
  {
    Cerr << "ToDo" << finl;
    Process::exit(-1);
    return r;
  }
 
  DoubleTab& ajouter_multTab_(const DoubleTab& x, DoubleTab& r) const override
  {
    Cerr << "ToDo" << finl;
    Process::exit(-1);
    return r;
  }
 
#ifdef PETSCKSP_H
  inline const Mat& getMat() const
  {
    return Mat_;
  }
 
private :
  Mat Mat_;
#endif
};
#endif