ILUPrec Class Template Reference
[Solver]

#include <Precond.h>

List of all members.

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Detailed Description

template<class T_, class M_>
class OFELI::ILUPrec< T_, M_ >

To set ILU (Incomplete LU factorization) preconditioner.

Template Arguments:

• T_ : data type (double, float, ...)
• M_ : matrix class

Public Member Functions
T_ &	getPivot (size_t i) const
	Return i-th pivot of preconditioning matrix.
	ILUPrec (const M_ &a)
	Constructor using matrix of the linear system to precondition.
	ILUPrec ()
	Default constructor.
void	setMatrix (const M_ &a)
	Define the matrix for preconditioning.
void	Solve (const Vect< T_ > &b, Vect< T_ > &x) const
	Solve a linear system with preconditioning matrix.
void	Solve (Vect< T_ > &x) const
	Solve a linear system with preconditioning matrix.
void	TransSolve (const Vect< T_ > &b, Vect< T_ > &x) const
	Solve a linear system with transposed preconditioning matrix.
void	TransSolve (Vect< T_ > &x) const
	Solve a linear system with transposed preconditioning matrix.
	~ILUPrec ()
	Destructor.

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Constructor & Destructor Documentation

ILUPrec

(

)

Default constructor.

Does nothing: Just to declare an instance

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Member Function Documentation

void setMatrix

(

const M_ &

a

)

Define the matrix for preconditioning.

Parameters:

[in]

a

Matrix for preconditioning

Referenced by ILUPrec::ILUPrec().

void Solve	(	const Vect< T_ > &	b,
		Vect< T_ > &	x
	)			const

Solve a linear system with preconditioning matrix.

Parameters:

[in]	b	Right-hand side.
[out]	x	Solution vector.

void Solve

(

Vect< T_ > &

x

)

const

Solve a linear system with preconditioning matrix.

Parameters:

[in,out]

x

Right-hand side in input and solution in output.

void TransSolve	(	const Vect< T_ > &	b,
		Vect< T_ > &	x
	)			const

Solve a linear system with transposed preconditioning matrix.

Parameters:

[in]	b	Right-hand side
[out]	x	Solution vector

References ILUPrec::TransSolve().

void TransSolve

(

Vect< T_ > &

x

)

const

Solve a linear system with transposed preconditioning matrix.

Parameters:

[in,out]

x

Right-hand side in input and solution in output.

Referenced by ILUPrec::TransSolve().