ROL: ROL::ConjugateGradients< Real > Class Template Reference

ROL

Provides definitions of the Conjugate Gradient solver. More...

#include <ROL_ConjugateGradients.hpp>

Inheritance diagram for ROL::ConjugateGradients< Real >:

Public Member Functions
	ConjugateGradients (Real absTol=1.e-4, Real relTol=1.e-2, unsigned maxit=100, bool useInexact=false)

Real	run (Vector< Real > &x, LinearOperator< Real > &A, const Vector< Real > &b, LinearOperator< Real > &M, int &iter, int &flag)

Public Member Functions inherited from ROL::Krylov< Real >
virtual	~Krylov (void)

	Krylov (Real absTol=1.e-4, Real relTol=1.e-2, unsigned maxit=100)

	Krylov (ROL::ParameterList &parlist)

void	resetAbsoluteTolerance (const Real absTol)

void	resetRelativeTolerance (const Real relTol)

void	resetMaximumIteration (const unsigned maxit)

Real	getAbsoluteTolerance (void) const

Real	getRelativeTolerance (void) const

unsigned	getMaximumIteration (void) const

Private Attributes
bool	isInitialized_

bool	useInexact_

ROL::Ptr< Vector< Real > >	r_

ROL::Ptr< Vector< Real > >	v_

ROL::Ptr< Vector< Real > >	p_

ROL::Ptr< Vector< Real > >	Ap_

Detailed Description

template<class Real>
class ROL::ConjugateGradients< Real >

Provides definitions of the Conjugate Gradient solver.

Definition at line 57 of file ROL_ConjugateGradients.hpp.

Constructor & Destructor Documentation

template<class Real >

ROL::ConjugateGradients< Real >::ConjugateGradients	(	Real	absTol = `1.e-4`,
		Real	relTol = `1.e-2`,
		unsigned	maxit = `100`,
		bool	useInexact = `false`
	)

inline

Definition at line 67 of file ROL_ConjugateGradients.hpp.

Member Function Documentation

template<class Real >

Real ROL::ConjugateGradients< Real >::run	(	Vector< Real > &	x,
		LinearOperator< Real > &	A,
		const Vector< Real > &	b,
		LinearOperator< Real > &	M,
		int &	iter,
		int &	flag
	)

inlinevirtual

Implements ROL::Krylov< Real >.

Definition at line 70 of file ROL_ConjugateGradients.hpp.

References ROL::ConjugateGradients< Real >::Ap_, ROL::LinearOperator< Real >::apply(), ROL::LinearOperator< Real >::applyInverse(), ROL::Vector< Real >::axpy(), ROL::Vector< Real >::clone(), ROL::ConjugateGradients< Real >::isInitialized_, ROL::Vector< Real >::norm(), ROL::ConjugateGradients< Real >::p_, ROL::ConjugateGradients< Real >::r_, ROL::ConjugateGradients< Real >::useInexact_, ROL::ConjugateGradients< Real >::v_, zero, and ROL::Vector< Real >::zero().

Member Data Documentation

template<class Real >

bool ROL::ConjugateGradients< Real >::isInitialized_

private

Definition at line 59 of file ROL_ConjugateGradients.hpp.

Referenced by ROL::ConjugateGradients< Real >::run().

template<class Real >

bool ROL::ConjugateGradients< Real >::useInexact_

private

Definition at line 60 of file ROL_ConjugateGradients.hpp.

Referenced by ROL::ConjugateGradients< Real >::run().

template<class Real >

ROL::Ptr<Vector<Real> > ROL::ConjugateGradients< Real >::r_

private

Definition at line 61 of file ROL_ConjugateGradients.hpp.

Referenced by ROL::ConjugateGradients< Real >::run().

template<class Real >

ROL::Ptr<Vector<Real> > ROL::ConjugateGradients< Real >::v_

private

Definition at line 62 of file ROL_ConjugateGradients.hpp.

Referenced by ROL::ConjugateGradients< Real >::run().

template<class Real >

ROL::Ptr<Vector<Real> > ROL::ConjugateGradients< Real >::p_

private

Definition at line 63 of file ROL_ConjugateGradients.hpp.

Referenced by ROL::ConjugateGradients< Real >::run().

template<class Real >

ROL::Ptr<Vector<Real> > ROL::ConjugateGradients< Real >::Ap_

private

Definition at line 64 of file ROL_ConjugateGradients.hpp.

Referenced by ROL::ConjugateGradients< Real >::run().

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

ROL_ConjugateGradients.hpp