fprop_Wilson_Shift.h

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#ifndef FPROP_WILSON_SHIFT_INCLUDED
#define FPROP_WILSON_SHIFT_INCLUDED

#include "fopr_Wilson.h"
#include "index_lex.h"
#include "shiftsolver_CG.h"

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


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

class Fprop_Wilson_Shift
{
 public:
  static const std::string class_name;

 protected:
  Bridge::VerboseLevel m_vl;

 private:
  Fopr_Wilson *m_fopr;
  Index_lex   *m_index_lex;

  int    m_Niter;
  double m_Stop_cond;

  int m_Nshift;
  std::valarray<double> m_sigma;

 public:
  Fprop_Wilson_Shift(Fopr_Wilson *fopr, Index_lex *index)
    : m_vl(CommonParameters::Vlevel()),
      m_fopr(fopr), m_index_lex(index) {}

  void set_parameters(const Parameters& params);
  void set_parameters(const int Nshift, const std::valarray<double> sigma,
                      const int Niter, const double Stop_cond);

  double calc(std::valarray<Field_F> *,
              const Field_F&);
};
#endif