ROL::DogLeg< Real > Class Template Reference

Provides interface for dog leg trust-region subproblem solver. More...

#include <ROL_DogLeg.hpp>

Inheritance diagram for ROL::DogLeg< Real >:

Public Member Functions
	DogLeg (ROL::ParameterList &parlist)
void	initialize (const Vector< Real > &x, const Vector< Real > &s, const Vector< Real > &g)
void	run (Vector< Real > &s, Real &snorm, int &iflag, int &iter, const Real del, TrustRegionModel< Real > &model)
Public Member Functions inherited from ROL::TrustRegion< Real >
virtual	~TrustRegion ()
	TrustRegion (ROL::ParameterList &parlist)
virtual void	update (Vector< Real > &x, Real &fnew, Real &del, int &nfval, int &ngrad, ETrustRegionFlag &flagTR, const Vector< Real > &s, const Real snorm, const Real fold, const Vector< Real > &g, int iter, Objective< Real > &obj, BoundConstraint< Real > &bnd, TrustRegionModel< Real > &model)
void	setPredictedReduction (const Real pRed)
Real	getPredictedReduction (void) const

Private Attributes
ROL::Ptr< CauchyPoint< Real > >	cpt_
ROL::Ptr< Vector< Real > >	s_
ROL::Ptr< Vector< Real > >	Hp_
Real	pRed_

Detailed Description

template<class Real>
class ROL::DogLeg< Real >

Provides interface for dog leg trust-region subproblem solver.

Definition at line 23 of file ROL_DogLeg.hpp.

Constructor & Destructor Documentation

DogLeg()

template<class Real>

ROL::DogLeg< Real >::DogLeg ( ROL::ParameterList & parlist )

inline

Definition at line 36 of file ROL_DogLeg.hpp.

References cpt_, pRed_, and ROL::TrustRegion< Real >::TrustRegion().

Member Function Documentation

initialize()

template<class Real>

void ROL::DogLeg< Real >::initialize ( const Vector< Real > & x, const Vector< Real > & s, const Vector< Real > & g )

inlinevirtual

Reimplemented from ROL::TrustRegion< Real >.

Definition at line 40 of file ROL_DogLeg.hpp.

References ROL::Vector< Real >::clone(), cpt_, Hp_, ROL::TrustRegion< Real >::initialize(), and s_.

run()

template<class Real>

void ROL::DogLeg< Real >::run ( Vector< Real > & s, Real & snorm, int & iflag, int & iter, const Real del, TrustRegionModel< Real > & model )

inlinevirtual

Implements ROL::TrustRegion< Real >.

Definition at line 47 of file ROL_DogLeg.hpp.

References ROL::Vector< Real >::axpy(), cpt_, ROL::Vector< Real >::dual(), ROL::TrustRegionModel< Real >::dualTransform(), ROL::TrustRegionModel< Real >::getGradient(), ROL::TrustRegionModel< Real >::hessVec(), Hp_, ROL::TrustRegionModel< Real >::invHessVec(), ROL::Vector< Real >::norm(), pRed_, ROL::TrustRegionModel< Real >::primalTransform(), ROL::ROL_EPSILON(), s_, ROL::Vector< Real >::scale(), ROL::Vector< Real >::set(), ROL::TrustRegion< Real >::setPredictedReduction(), and zero.

Member Data Documentation

cpt_

template<class Real>

ROL::Ptr<CauchyPoint<Real> > ROL::DogLeg< Real >::cpt_

private

Definition at line 26 of file ROL_DogLeg.hpp.

Referenced by DogLeg(), initialize(), and run().

s_

template<class Real>

ROL::Ptr<Vector<Real> > ROL::DogLeg< Real >::s_

private

Definition at line 28 of file ROL_DogLeg.hpp.

Referenced by initialize(), and run().

Hp_

template<class Real>

ROL::Ptr<Vector<Real> > ROL::DogLeg< Real >::Hp_

private

Definition at line 29 of file ROL_DogLeg.hpp.

Referenced by initialize(), and run().

pRed_

template<class Real>

Real ROL::DogLeg< Real >::pRed_

private

Definition at line 31 of file ROL_DogLeg.hpp.

Referenced by DogLeg(), and run().

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The documentation for this class was generated from the following file:

• ROL_DogLeg.hpp