MoochoPack_FeasibilityStepReducedStd_Strategy.hpp

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// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
//                  Copyright (2003) Sandia Corporation
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#ifndef FEASIBILITY_STEP_REDUCED_STD_STRATEGY_H
#define FEASIBILITY_STEP_REDUCED_STD_STRATEGY_H

#include "MoochoPack_FeasibilityStep_Strategy.hpp"
#include "MoochoPack_QuasiRangeSpaceStep_Strategy.hpp"
#include "MoochoPack_d_bounds_iter_quant.hpp"
#include "IterationPack_CastIQMember.hpp"
#include "ConstrainedOptPack_QPSolverRelaxed.hpp"
#include "ConstrainedOptPack_QPSolverRelaxedTester.hpp"
#include "AbstractLinAlgPack_MatrixOp.hpp"
#include "DenseLinAlgPack_DMatrixClass.hpp"
#include "AbstractLinAlgPack_VectorSpace.hpp"
#include "Teuchos_StandardCompositionMacros.hpp"
#include "Teuchos_StandardMemberCompositionMacros.hpp"

namespace MoochoPack {

class FeasibilityStepReducedStd_Strategy : public FeasibilityStep_Strategy
{
public:

  STANDARD_COMPOSITION_MEMBERS( QuasiRangeSpaceStep_Strategy, quasi_range_space_step );

  typedef ConstrainedOptPack::QPSolverRelaxedTester
    QPSolverRelaxedTester;

  STANDARD_COMPOSITION_MEMBERS( QPSolverRelaxed, qp_solver );

  STANDARD_COMPOSITION_MEMBERS( QPSolverRelaxedTester, qp_tester );
    
  enum EQPObjective {
    OBJ_MIN_FULL_STEP           
    ,OBJ_MIN_NULL_SPACE_STEP    
    ,OBJ_RSQP                   
  };

  STANDARD_MEMBER_COMPOSITION_MEMBERS( EQPObjective, qp_objective );

  enum EQPTesting {
    QP_TEST_DEFAULT     
    ,QP_TEST            
    ,QP_NO_TEST         
  };

  STANDARD_MEMBER_COMPOSITION_MEMBERS( EQPTesting, qp_testing );

  FeasibilityStepReducedStd_Strategy(
    const quasi_range_space_step_ptr_t   &quasi_range_space_step
    ,const qp_solver_ptr_t               &qp_solver
    ,const qp_tester_ptr_t               &qp_tester
    ,EQPObjective                        qp_objective     = OBJ_MIN_NULL_SPACE_STEP
    ,EQPTesting                          qp_testing       = QP_TEST_DEFAULT
    );

  // ////////////////////////////////////////////
  // Overridden from FeasibilityStep_Strategy

   bool compute_feasibility_step(
    std::ostream& out, EJournalOutputLevel olevel, NLPAlgo *algo, NLPAlgoState *s
    ,const Vector& xo, const Vector& c_xo, VectorMutable* w
      );

  void print_step( std::ostream& out, const std::string& leading_str ) const;

private:

  IterationPack::CastIQMember<VectorMutable>  dl_iq_;
  IterationPack::CastIQMember<VectorMutable>  du_iq_;
  int                                                      current_k_;
  Teuchos::RCP<const MatrixOp>            Hess_ptr_;
  VectorSpace::vec_mut_ptr_t                               grad_store_;
  DMatrix                                                Hess_store_;

}; // end class FeasibilityStepReducedStd_Strategy

} // end namespace MoochoPack

#endif // FEASIBILITY_STEP_REDUCED_STD_STRATEGY_H