MoochoPack_UpdateReducedSigma_Step.hpp

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// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
//                  Copyright (2003) Sandia Corporation
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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#ifndef UPDATE_REDUCED_SIGMA_STEP_H
#define UPDATE_REDUCED_SIGMA_STEP_H

#include "IterationPack_AlgorithmStep.hpp"
#include "Teuchos_StandardCompositionMacros.hpp"
#include "Teuchos_StandardMemberCompositionMacros.hpp"

#include "MoochoPack_Types.hpp"
#include "IterationPack_AlgorithmStep.hpp"

#include "OptionsFromStreamPack_SetOptionsFromStreamNode.hpp"
#include "OptionsFromStreamPack_SetOptionsToTargetBase.hpp"

namespace MoochoPack {

class UpdateReducedSigma_Step
  : public IterationPack::AlgorithmStep // doxygen needs full path
  {
  public:

    enum e_update_methods
      {
      ALWAYS_EXPLICIT,
      BFGS_PRIMAL,
      BFGS_DUAL_NO_CORRECTION,
      BFGS_DUAL_EXPLICIT_CORRECTION,
      BFGS_DUAL_SCALING_CORRECTION
      };

    STANDARD_MEMBER_COMPOSITION_MEMBERS( e_update_methods, update_method);

    bool do_step(Algorithm& algo, poss_type step_poss, IterationPack::EDoStepType type
           , poss_type assoc_step_poss);
    
    
    void print_step( const IterationPack::Algorithm& algo, poss_type step_poss, IterationPack::EDoStepType type
             , poss_type assoc_step_poss, std::ostream& out, const std::string& leading_str ) const;

    UpdateReducedSigma_Step(
//      const e_update_methods update_method = BFGS_DUAL_EXPLICIT_CORRECTION
      const e_update_methods update_method = ALWAYS_EXPLICIT // For now only!
      );

  private:
    void FormReducedSigmaExplicitly(NLPAlgo& algo, IpState& s, EJournalOutputLevel olevel,  std::ostream& out);


  }; // end class EvalNewPointBarrier_Step

const char UpdateReducedSigma_opt_grp_name[] = "UpdateReducedSigma";
class UpdateReducedSigma_StepSetOptions
  : public OptionsFromStreamPack::SetOptionsFromStreamNode,
    public OptionsFromStreamPack::SetOptionsToTargetBase< UpdateReducedSigma_Step >
  {
  public:
    UpdateReducedSigma_StepSetOptions(
      UpdateReducedSigma_Step* target = 0,
      const char opt_grp_name[] = UpdateReducedSigma_opt_grp_name );

  protected:

    void setOption( int option_num, const std::string& option_value );
  
  };  // end class UpdateReducedSigma_StepSetOptions


}  // end namespace MoochoPack

#endif // UPDATE_REDUCED_SIGMA_STEP_H

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