action_F_Ratio.h

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#ifndef ACTION_F_RATIO_INCLUDED
#define ACTION_F_RATIO_INCLUDED

#include "action.h"
#include "solver.h"

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


class Action_F_Ratio : public Action
{
 public:
  static const std::string class_name;

 private:
  Field *m_U;

  Fopr        *m_fopr_prec;       // preconditioner
  Force       *m_fopr_prec_force; // force of preconditioner
  Fopr        *m_fopr;            // dynamical fermion
  Force       *m_fopr_force;      // force of dynamical fermion
  Field       m_psf;              // pseudofermion field
  std::string m_label;            // label of action

  Solver *m_solver_H_prec;
  Solver *m_solver_MD;
  Solver *m_solver_H;

  RandomNumbers *m_rand;

 public:
  Action_F_Ratio(
    Fopr *fopr_prec, Force *fopr_prec_force,
    Fopr *fopr, Force *fopr_force)
    : Action(),
      m_fopr_prec(fopr_prec), m_fopr_prec_force(fopr_prec_force),
      m_fopr(fopr), m_fopr_force(fopr_force)
  {
    set_parameters();
  }

  Action_F_Ratio(
    unique_ptr<Fopr>& fopr_prec, unique_ptr<Force>& fopr_prec_force,
    unique_ptr<Fopr>& fopr, unique_ptr<Force>& fopr_force)
    : Action(),
      m_fopr_prec(fopr_prec.get()), m_fopr_prec_force(fopr_prec_force.get()),
      m_fopr(fopr.get()), m_fopr_force(fopr_force.get())
  {
    set_parameters();
  }

  ~Action_F_Ratio()
  {
    delete m_solver_H_prec;
    delete m_solver_MD;
    delete m_solver_H;
  }

  void set_parameters(const Parameters&);
  void set_parameters();

  void set_label(std::string label)
  {
    m_label = label;
    vout.detailed(m_vl, "  label: %s\n", m_label.c_str());
  }

  std::string get_label()
  {
    return m_label;
  }

  void set_config(Field *U)
  {
    m_U = U;

    m_fopr_prec->set_config(U);
    m_fopr_prec_force->set_config(U);

    m_fopr->set_config(U);
    m_fopr_force->set_config(U);
  }

  double langevin(RandomNumbers *);

  double calcH();

  void force(Field&);
};
#endif