solver_CG.h

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#ifndef SOLVER_CG_INCLUDED
#define SOLVER_CG_INCLUDED

#include "solver.h"

#include "bridgeIO.h"
using Bridge::vout;

//- parameters class
class Parameters_Solver_CG : virtual public Parameters
{
 public:
  Parameters_Solver_CG();
};
//- end


class Solver_CG : public Solver
{
 public:
  static const std::string class_name;

 private:
  Fopr   *m_fopr;
  int    m_Niter;
  double m_Stop_cond;

  Field s, r, x, p;
  // double rr_prev;

 public:
  Solver_CG(Fopr *fopr)
    : Solver(), m_fopr(fopr) {}

  Solver_CG(unique_ptr<Fopr>& fopr)
    : Solver(), m_fopr(fopr.get()) {}

  ~Solver_CG() {}

  void set_parameters(const Parameters& params);
  void set_parameters(const int Niter, const double Stop_cond);

  void solve(Field& solution, const Field& source,
             int& Nconv, double& diff);

  Fopr *get_fopr() { return m_fopr; }

 private:
  void reset_field(const Field&);

  void solve_init(const Field&, double&);
  void solve_step(double&);
};
#endif