dune-istl  2.2.1
Public Types | Public Member Functions | List of all members
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 >:
Dune::Preconditioner< X, Y >

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
MThe matrix type to operate on
XType of the update
YType of the defect
lIgnored. 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
AThe matrix to operate on.
nThe number of iterations to perform.
wThe 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 >.


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