IpPenaltyLSAcceptor.hpp

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// Copyright (C) 2008 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// Authors:  Andreas Waechter                 IBM    2008-04-04
//               derived file from IpFilterLSAcceptor.hpp
 
#ifndef __IPPENALTYLSACCEPTOR_HPP__
#define __IPPENALTYLSACCEPTOR_HPP__
 
#include "IpBacktrackingLSAcceptor.hpp"
#include "IpPDSystemSolver.hpp"
 
namespace Ipopt
{
 
class PenaltyLSAcceptor: public BacktrackingLSAcceptor
{
public:
 
   PenaltyLSAcceptor(
      const SmartPtr<PDSystemSolver>& pd_solver
   );
 
   virtual ~PenaltyLSAcceptor();
 
   virtual bool InitializeImpl(
      const OptionsList& options,
      const std::string& prefix
   );
 
   virtual void Reset();
 
   virtual void InitThisLineSearch(
      bool in_watchdog
   );
 
   virtual void PrepareRestoPhaseStart();
 
   virtual Number CalculateAlphaMin();
 
   virtual bool CheckAcceptabilityOfTrialPoint(
      Number alpha_primal);
 
   virtual bool TrySecondOrderCorrection(
      Number                    alpha_primal_test,
      Number&                   alpha_primal,
      SmartPtr<IteratesVector>& actual_delta
   );
 
   virtual bool TryCorrector(
      Number                    alpha_primal_test,
      Number&                   alpha_primal,
      SmartPtr<IteratesVector>& actual_delta
   );
 
   virtual char UpdateForNextIteration(
      Number alpha_primal_test
   );
 
   virtual void StartWatchDog();
 
   virtual void StopWatchDog();
 
 
   bool IsAcceptableToCurrentIterate(
      Number trial_barr,
      Number trial_theta,
      bool   called_from_restoration = false
   ) const;
 
   static void RegisterOptions(
      SmartPtr<RegisteredOptions> roptions
   );
 
private:
 
   PenaltyLSAcceptor(
      const PenaltyLSAcceptor&
   );
 
   void operator=(
      const PenaltyLSAcceptor&
   );
 
   Number CalcPred(
      Number alpha
   );
 
 
   Number nu_init_;
   Number nu_inc_;
   Number eta_;
   Number rho_;
   Index max_soc_;
   Number kappa_soc_;
   Index soc_method_;
 
 
   Number reference_theta_;
   Number reference_barr_;
   Number reference_gradBarrTDelta_;
   Number reference_dWd_;
   SmartPtr<const Vector> reference_JacC_delta_;
   SmartPtr<const Vector> reference_JacD_delta_;
   Number reference_pred_;
   Number watchdog_theta_;
   Number watchdog_barr_;
   Number watchdog_pred_;
 
 
   Number nu_;
   Number last_nu_;
 
   Number resto_pred_;
 
   SmartPtr<PDSystemSolver> pd_solver_;
};
 
} // namespace Ipopt
 
#endif