Dune::SeqILUn< M, X, Y, l > Class Template Reference

Sequential ILU(n) preconditioner. More...

#include <dune/istl/preconditioners.hh>

Inheritance diagram for Dune::SeqILUn< M, X, Y, l >:

Public Types
enum	{ category =SolverCategory::sequential }
typedef Dune::remove_const< M > ::type	matrix_type
	The matrix type the preconditioner is for. More...
typedef X	domain_type
	The domain type of the preconditioner. More...
typedef Y	range_type
	The range type of the preconditioner. More...
typedef X::field_type	field_type
	The field type of the preconditioner. More...

Public Member Functions
	SeqILUn (const M &A, int n, field_type w)
	Constructor. More...
virtual void	pre (X &x, Y &b)
	Prepare the preconditioner. More...
virtual void	apply (X &v, const Y &d)
	Apply the precondioner. More...
virtual void	post (X &x)
	Clean up. More...

Detailed Description

template<class M, class X, class Y, int l = 1>
class Dune::SeqILUn< M, X, Y, l >

Sequential ILU(n) preconditioner.

Wraps the naked ISTL generic ILU(n) preconditioner into the solver framework.

Template Parameters

M	The matrix type to operate on
X	Type of the update
Y	Type of the defect
l	Ignored. Just there to have the same number of template arguments as other preconditioners.

Member Typedef Documentation

template<class M, class X, class Y, int l = 1>

typedef X Dune::SeqILUn< M, X, Y, l >::domain_type

The domain type of the preconditioner.

template<class M, class X, class Y, int l = 1>

typedef X::field_type Dune::SeqILUn< M, X, Y, l >::field_type

The field type of the preconditioner.

template<class M, class X, class Y, int l = 1>

typedef Dune::remove_const<M>::type Dune::SeqILUn< M, X, Y, l >::matrix_type

The matrix type the preconditioner is for.

template<class M, class X, class Y, int l = 1>

typedef Y Dune::SeqILUn< M, X, Y, l >::range_type

The range type of the preconditioner.

Member Enumeration Documentation

template<class M, class X, class Y, int l = 1>

anonymous enum

Enumerator
category	The category the preconditioner is part of.

Constructor & Destructor Documentation

template<class M, class X, class Y, int l = 1>

Dune::SeqILUn< M, X, Y, l >::SeqILUn ( const M &  A, int  n, field_type  w  )

inline

Constructor.

Constructor gets all parameters to operate the prec.

Parameters

A	The matrix to operate on.
n	The number of iterations to perform.
w	The relaxation factor.

References Dune::bilu_decomposition().

Member Function Documentation

template<class M, class X, class Y, int l = 1>

virtual void Dune::SeqILUn< M, X, Y, l >::apply ( X &  v, const Y &  d  )

inlinevirtual

Apply the precondioner.

Apply one step of the preconditioner to the system A(v)=d.

Implements Dune::Preconditioner< X, Y >.

References Dune::bilu_backsolve().

template<class M, class X, class Y, int l = 1>

virtual void Dune::SeqILUn< M, X, Y, l >::post ( X &  x )

inlinevirtual

Clean up.

Clean up.

Implements Dune::Preconditioner< X, Y >.

template<class M, class X, class Y, int l = 1>

virtual void Dune::SeqILUn< M, X, Y, l >::pre ( X &  x, Y &  b  )

inlinevirtual

Prepare the preconditioner.

Prepare the preconditioner.

Implements Dune::Preconditioner< X, Y >.

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

• preconditioners.hh