SNES_JFNK.h

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#ifndef SNES_JFNK_included
#define SNES_JFNK_included
 
#include <Solveur_non_lineaire.h>
#include <Equation_base.h>
#include <Matrix_tools.h>
#include <Matrice_Morse.h>
#include <Champ_Uniforme.h>
#include <Champ_Fonc_Tabule.h>
#include <TRUST_Ref.h>
#include <TRUSTTab_parts.h>
#include <EChaine.h>
#include <Table.h>
#include <Dimension.h>
#include <Param.h>
#include <SFichier.h>
#include <Perf_counters.h>
#include <Solv_tools.h>
#include <math.h>
 
 
/*! @brief classe SNES_JFNK
 *
 *      Classe solveur JFNK liée à la librairie SNES de PETSC.
 * @sa Solveur_non_lineaire
 */
class SNES_JFNK : public Solveur_non_lineaire, public Solv_tools
{
  Declare_instanciable(SNES_JFNK);
 
public :
 
  const Nom& le_nom() const override { return nom_; }
  void nommer(const Nom& name) override { nom_ = name ; }
 
  // Méthode iterer_eqn de la classe de base surchargée
  bool iterer_eqn(Equation_base& equation, const DoubleTab& inconnue, DoubleTab& result, double dt, int numero_iteration, int& ok) override;
 
protected :
 
  Nom nom_;
  double atol_ = -123.;
  double rtol_ = -123.;
  double stol_ = -123.;
  int maxit_newton_= -123;
  int maxit_gmres_ = -123;
  int nkr_= -123;
  double erel_ = -123.;
  double umin_ = -123.;
};
 
#endif /* SNES_JFNK_included */