Rythmos_BackwardEulerStepper_decl.hpp

//@HEADER
// ***********************************************************************
//
//                           Rythmos Package
//                 Copyright (2006) Sandia Corporation
//
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
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// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Todd S. Coffey (tscoffe@sandia.gov)
//
// ***********************************************************************
//@HEADER

#ifndef Rythmos_BACKWARD_EULER_STEPPER_DECL_H
#define Rythmos_BACKWARD_EULER_STEPPER_DECL_H

#include "Rythmos_SolverAcceptingStepperBase.hpp"
#include "Rythmos_InterpolatorAcceptingObjectBase.hpp"
#include "Rythmos_SingleResidualModelEvaluator.hpp"
#include "Rythmos_MomentoBase.hpp"

#include "Thyra_VectorBase.hpp"
#include "Thyra_ModelEvaluator.hpp"
#include "Thyra_NonlinearSolverBase.hpp"
#include "Teuchos_ParameterListAcceptorDefaultBase.hpp"


namespace Rythmos {


template<class Scalar>
  class BackwardEulerStepperMomento :
    virtual public MomentoBase<Scalar>,
    virtual public Teuchos::ParameterListAcceptorDefaultBase
{
  public:
    BackwardEulerStepperMomento() {}
    virtual ~BackwardEulerStepperMomento() {}

    RCP<MomentoBase<Scalar> > clone() const
    {
      RCP<BackwardEulerStepperMomento<Scalar> > m = rcp(new BackwardEulerStepperMomento<Scalar>());
      m->set_scaled_x_old(scaled_x_old_);
      m->set_x_dot_old(x_dot_old_);
      m->set_x(x_);
      m->set_x_dot(x_dot_);
      m->set_t(t_);
      m->set_t_old(t_old_);
      m->set_dt(dt_);
      m->set_numSteps(numSteps_);
      m->set_isInitialized(isInitialized_);
      m->set_haveInitialCondition(haveInitialCondition_);
      m->set_parameterList(parameterList_);
      m->set_basePoint(basePoint_);
      m->set_neModel(neModel_);
      m->set_interpolator(interpolator_);
      if (!Teuchos::is_null(this->getMyParamList())) {
        m->setParameterList(Teuchos::parameterList(*(this->getMyParamList())));
      }
      // How do I copy the VerboseObject data?  
      // 07/10/09 tscoffe:  Its not set up in Teuchos to do this yet
      return m;
    }

    void serialize(
        const StateSerializerStrategy<Scalar>& stateSerializer,
        std::ostream& oStream
        ) const
    { }

    void deSerialize(
        const StateSerializerStrategy<Scalar>& stateSerializer,
        std::istream& iStream
        )
    { }

    void set_scaled_x_old(const RCP<const VectorBase<Scalar> >& scaled_x_old )
    { 
      scaled_x_old_ = Teuchos::null;
      if (!Teuchos::is_null(scaled_x_old)) {
        scaled_x_old_ = scaled_x_old->clone_v(); 
      }
    }
    RCP<VectorBase<Scalar> > get_scaled_x_old() const
    { return scaled_x_old_; }

    void set_x_dot_old(const RCP<const VectorBase<Scalar> >& x_dot_old )
    { 
      x_dot_old_ = Teuchos::null;
      if (!Teuchos::is_null(x_dot_old)) {
        x_dot_old_ = x_dot_old->clone_v(); 
      }
    }
    RCP<VectorBase<Scalar> > get_x_dot_old() const
    { return x_dot_old_; }

    void set_x(const RCP<const VectorBase<Scalar> >& x )
    { 
      x_ = Teuchos::null;
      if (!Teuchos::is_null(x)) {
        x_ = x->clone_v(); 
      }
    }
    RCP<VectorBase<Scalar> > get_x() const
    { return x_; }

    void set_x_dot(const RCP<const VectorBase<Scalar> >& x_dot )
    { 
      x_dot_ = Teuchos::null;
      if (!Teuchos::is_null(x_dot)) {
        x_dot_ = x_dot->clone_v(); 
      }
    }
    RCP<VectorBase<Scalar> > get_x_dot() const
    { return x_dot_; }

    void set_t(const Scalar & t)
    { t_ = t; }
    Scalar get_t() const
    { return t_; }

    void set_t_old(const Scalar & t_old)
    { t_old_ = t_old; }
    Scalar get_t_old() const
    { return t_old_; }

    void set_dt(const Scalar & dt)
    { dt_ = dt; }
    Scalar get_dt() const
    { return dt_; }

    void set_numSteps(const int & numSteps)
    { numSteps_ = numSteps; }
    int get_numSteps() const
    { return numSteps_; }

    void set_isInitialized(const bool & isInitialized)
    { isInitialized_ = isInitialized; }
    bool get_isInitialized() const
    { return isInitialized_; }

    void set_haveInitialCondition(const bool & haveInitialCondition)
    { haveInitialCondition_ = haveInitialCondition; }
    bool get_haveInitialCondition() const
    { return haveInitialCondition_; }

    void set_parameterList(const RCP<const ParameterList>& pl)
    { 
      parameterList_ = Teuchos::null;
      if (!Teuchos::is_null(pl)) {
        parameterList_ = Teuchos::parameterList(*pl); 
      }
    }
    RCP<ParameterList> get_parameterList() const
    { return parameterList_; }

    void set_basePoint(Thyra::ModelEvaluatorBase::InArgs<Scalar> basePoint)
    { basePoint_ = basePoint; };
    Thyra::ModelEvaluatorBase::InArgs<Scalar> get_basePoint() const
    { return basePoint_; }

    void set_neModel(const RCP<Rythmos::SingleResidualModelEvaluator<Scalar> >& neModel)
    { 
      neModel_ = Teuchos::null;
      if (!Teuchos::is_null(neModel)) {
        neModel_ = Teuchos::rcp(new Rythmos::SingleResidualModelEvaluator<Scalar>);
      }
    }
    RCP<Rythmos::SingleResidualModelEvaluator<Scalar> > get_neModel() const
    { return neModel_; }

    void set_interpolator(const RCP<InterpolatorBase<Scalar> >& interpolator)
    {
      interpolator_ = Teuchos::null;
      if (!Teuchos::is_null(interpolator)) {
        TEUCHOS_ASSERT(interpolator->supportsCloning());
        interpolator_ = interpolator->cloneInterpolator();
      }
    }
    RCP<InterpolatorBase<Scalar> > get_interpolator() const
    { return interpolator_; }

    void setParameterList(const RCP<ParameterList>& paramList)
    { this->setMyParamList(paramList); }
    RCP<const ParameterList> getValidParameters() const
    { return Teuchos::null; }

  private:
    RCP<Thyra::VectorBase<Scalar> > scaled_x_old_;
    RCP<Thyra::VectorBase<Scalar> > x_dot_old_;
    RCP<Thyra::VectorBase<Scalar> > x_;
    RCP<Thyra::VectorBase<Scalar> > x_dot_;
    Scalar t_;
    Scalar t_old_;
    Scalar dt_;
    int numSteps_;
    bool isInitialized_;
    bool haveInitialCondition_;
    RCP<Teuchos::ParameterList> parameterList_;
    Thyra::ModelEvaluatorBase::InArgs<Scalar> basePoint_;
    RCP<Rythmos::SingleResidualModelEvaluator<Scalar> >  neModel_; 
    RCP<InterpolatorBase<Scalar> > interpolator_;

};


template<class Scalar>
class BackwardEulerStepper : 
  virtual public SolverAcceptingStepperBase<Scalar>,
  virtual public InterpolatorAcceptingObjectBase<Scalar>
{
public:
  
  typedef typename Teuchos::ScalarTraits<Scalar>::magnitudeType ScalarMag;
  

  BackwardEulerStepper();
  
  BackwardEulerStepper(
    const RCP<Thyra::ModelEvaluator<Scalar> >& model,
    const RCP<Thyra::NonlinearSolverBase<Scalar> >& solver
    );

  
  
  void setInterpolator(const RCP<InterpolatorBase<Scalar> >& interpolator);

  RCP<InterpolatorBase<Scalar> > getNonconstInterpolator();

  RCP<const InterpolatorBase<Scalar> > getInterpolator() const;
  
  RCP<InterpolatorBase<Scalar> > unSetInterpolator();



  void setSolver(
    const RCP<Thyra::NonlinearSolverBase<Scalar> > &solver
    );

  RCP<Thyra::NonlinearSolverBase<Scalar> >
  getNonconstSolver();

  RCP<const Thyra::NonlinearSolverBase<Scalar> >
  getSolver() const;


 
  bool supportsCloning() const;

  RCP<StepperBase<Scalar> > cloneStepperAlgorithm() const;

  bool isImplicit() const;

  void setModel(const RCP<const Thyra::ModelEvaluator<Scalar> >& model);

  void setNonconstModel(const RCP<Thyra::ModelEvaluator<Scalar> >& model);
  
  RCP<const Thyra::ModelEvaluator<Scalar> > getModel() const;

  RCP<Thyra::ModelEvaluator<Scalar> > getNonconstModel();

  void setInitialCondition(
    const Thyra::ModelEvaluatorBase::InArgs<Scalar> &initialCondition
    );

  Thyra::ModelEvaluatorBase::InArgs<Scalar> getInitialCondition() const;

  Scalar takeStep(Scalar dt, StepSizeType flag);
  
  const StepStatus<Scalar> getStepStatus() const;
  


  RCP<const Thyra::VectorSpaceBase<Scalar> >
  get_x_space() const;

  void addPoints(
    const Array<Scalar>& time_vec,
    const Array<RCP<const Thyra::VectorBase<Scalar> > >& x_vec,
    const Array<RCP<const Thyra::VectorBase<Scalar> > >& xdot_vec
    );
  
  TimeRange<Scalar> getTimeRange() const;
  
  void getPoints(
    const Array<Scalar>& time_vec,
    Array<RCP<const Thyra::VectorBase<Scalar> > >* x_vec,
    Array<RCP<const Thyra::VectorBase<Scalar> > >* xdot_vec,
    Array<ScalarMag>* accuracy_vec
    ) const;
  
  void getNodes(Array<Scalar>* time_vec) const;
  
  void removeNodes(Array<Scalar>& time_vec);

  int getOrder() const;

  

  void setParameterList(RCP<Teuchos::ParameterList> const& paramList);
  
  RCP<Teuchos::ParameterList> getNonconstParameterList();
  
  RCP<Teuchos::ParameterList> unsetParameterList();
  
  RCP<const Teuchos::ParameterList> getValidParameters() const;
 

  
  void describe(
    Teuchos::FancyOStream  &out,
    const Teuchos::EVerbosityLevel verbLevel
    ) const;


  
  RCP<const MomentoBase<Scalar> > getMomento() const;

  void setMomento(
      const Ptr<const MomentoBase<Scalar> >& momentoPtr,
      const RCP<Thyra::ModelEvaluator<Scalar> >& model,
      const RCP<Thyra::NonlinearSolverBase<Scalar> >& solver
      );



private:

  // ///////////////////////
  // Private date members

  bool isInitialized_;
  bool haveInitialCondition_;
  RCP<const Thyra::ModelEvaluator<Scalar> > model_;
  RCP<Thyra::NonlinearSolverBase<Scalar> > solver_;
  RCP<Thyra::VectorBase<Scalar> > scaled_x_old_;
  RCP<Thyra::VectorBase<Scalar> > x_dot_old_;

  Thyra::ModelEvaluatorBase::InArgs<Scalar> basePoint_;
  RCP<Thyra::VectorBase<Scalar> > x_;
  RCP<Thyra::VectorBase<Scalar> > x_dot_;
  Scalar t_;
  Scalar t_old_;

  Scalar dt_;
  int numSteps_;

  RCP<Rythmos::SingleResidualModelEvaluator<Scalar> >  neModel_;

  RCP<Teuchos::ParameterList> parameterList_;

  RCP<InterpolatorBase<Scalar> > interpolator_;


  // //////////////////////////
  // Private member functions

  void defaultInitializeAll_();
  void initialize();
  void checkConsistentState_();

};


template<class Scalar>
RCP<BackwardEulerStepper<Scalar> >
backwardEulerStepper();


template<class Scalar>
RCP<BackwardEulerStepper<Scalar> >
backwardEulerStepper(
  const RCP<Thyra::ModelEvaluator<Scalar> >& model,
  const RCP<Thyra::NonlinearSolverBase<Scalar> >& solver
  );


} // namespace Rythmos


#endif //Rythmos_BACKWARD_EULER_STEPPER_DECL_H