SolverCG< VECTOR > Class Template Reference

Inheritance diagram for SolverCG< VECTOR >:

List of all members.

Classes
struct	AdditionalData
Public Member Functions
	SolverCG (::SolverControl &cn,::VectorMemory< VECTOR > &mem, const AdditionalData &data=AdditionalData())
	SolverCG (::SolverControl &cn, const AdditionalData &data=AdditionalData())
virtual	~SolverCG ()
template<class MATRIX , class PRECONDITIONER >
void	solve (const MATRIX &A, VECTOR &x, const VECTOR &b, const PRECONDITIONER &precondition)
Protected Member Functions
virtual double	criterion ()
virtual void	print_vectors (const unsigned int step, const VECTOR &x, const VECTOR &r, const VECTOR &d) const
Protected Attributes
VECTOR *	Vr
VECTOR *	Vp
VECTOR *	Vz
VECTOR *	VAp
double	res2
AdditionalData	additional_data
Private Member Functions
void	cleanup ()

template<class VECTOR = ::Vector<double>>
class SolverCG< VECTOR >

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Constructor & Destructor Documentation

template<class VECTOR >

SolverCG< VECTOR >::SolverCG	(	::SolverControl &	cn,
		::VectorMemory< VECTOR > &	mem,
		const AdditionalData &	data = AdditionalData()
	)			[inline]

Constructor.

template<class VECTOR >

SolverCG< VECTOR >::SolverCG	(	::SolverControl &	cn,
		const AdditionalData &	data = AdditionalData()
	)			[inline]

Constructor. Use an object of type GrowingVectorMemory as a default to allocate memory.

template<class VECTOR >

SolverCG< VECTOR >::~SolverCG

(

)

[inline, virtual]

Virtual destructor.

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Member Function Documentation

template<class VECTOR >

template<class MATRIX , class PRECONDITIONER >

void SolverCG< VECTOR >::solve	(	const MATRIX &	A,
		VECTOR &	x,
		const VECTOR &	b,
		const PRECONDITIONER &	precondition
	)			[inline]

Solve the linear system for x.

References SolverCG< VECTOR >::additional_data, SolverCG< VECTOR >::cleanup(), SolverCG< VECTOR >::AdditionalData::compute_all_condition_numbers, SolverCG< VECTOR >::AdditionalData::compute_condition_number, SolverCG< VECTOR >::AdditionalData::compute_eigenvalues, Solver< VECTOR >::control(), SolverCG< VECTOR >::AdditionalData::log_coefficients, Solver< VECTOR >::memory, SolverCG< VECTOR >::print_vectors(), SolverCG< VECTOR >::VAp, SolverCG< VECTOR >::Vp, SolverCG< VECTOR >::Vr, and SolverCG< VECTOR >::Vz.

template<class VECTOR >

double SolverCG< VECTOR >::criterion

(

)

[inline, protected, virtual]

Implementation of the computation of the norm of the residual. This can be replaced by a more problem oriented functional in a derived class.

References SolverCG< VECTOR >::res2.

template<class VECTOR >

void SolverCG< VECTOR >::print_vectors	(	const unsigned int	step,
		const VECTOR &	x,
		const VECTOR &	r,
		const VECTOR &	d
	)			const [inline, protected, virtual]

Interface for derived class. This function gets the current iteration vector, the residual and the update vector in each step. It can be used for a graphical output of the convergence history.

Referenced by SolverCG< VECTOR >::solve().

template<class VECTOR >

void SolverCG< VECTOR >::cleanup

(

)

[inline, private]

References Solver< VECTOR >::memory, SolverCG< VECTOR >::VAp, SolverCG< VECTOR >::Vp, SolverCG< VECTOR >::Vr, and SolverCG< VECTOR >::Vz.

Referenced by SolverCG< VECTOR >::solve().

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Member Data Documentation

template<class VECTOR = ::Vector<double>>

VECTOR* SolverCG< VECTOR >::Vr [protected]

Temporary vectors, allocated through the VectorMemory object at the start of the actual solution process and deallocated at the end.

Referenced by SolverCG< VECTOR >::cleanup(), and SolverCG< VECTOR >::solve().

template<class VECTOR = ::Vector<double>>

VECTOR* SolverCG< VECTOR >::Vp [protected]

Referenced by SolverCG< VECTOR >::cleanup(), and SolverCG< VECTOR >::solve().

template<class VECTOR = ::Vector<double>>

VECTOR* SolverCG< VECTOR >::Vz [protected]

Referenced by SolverCG< VECTOR >::cleanup(), and SolverCG< VECTOR >::solve().

template<class VECTOR = ::Vector<double>>

VECTOR* SolverCG< VECTOR >::VAp [protected]

Referenced by SolverCG< VECTOR >::cleanup(), and SolverCG< VECTOR >::solve().

template<class VECTOR = ::Vector<double>>

double SolverCG< VECTOR >::res2 [protected]

Within the iteration loop, the square of the residual vector is stored in this variable. The function criterion uses this variable to compute the convergence value, which in this class is the norm of the residual vector and thus the square root of the res2 value.

Referenced by SolverCG< VECTOR >::criterion().

template<class VECTOR = ::Vector<double>>

AdditionalData SolverCG< VECTOR >::additional_data [protected]

Additional parameters.

Referenced by SolverCG< VECTOR >::solve().

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

• /Users/sck/cuda/Praktikum_2011/include/lac/solver_cg_cuda.h