dune-istl
2.2.1
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Sequential SOR preconditioner. More...
#include <dune/istl/preconditioners.hh>
Public Types | |
enum | { category =SolverCategory::sequential } |
typedef M | 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 | |
SeqSOR (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 preconditioner. More... | |
template<bool forward> | |
void | apply (X &v, const Y &d) |
Apply the preconditioner in a special direction. More... | |
virtual void | post (X &x) |
Clean up. More... | |
Sequential SOR preconditioner.
Wraps the naked ISTL generic SOR preconditioner into the solver framework.
M | The matrix type to operate on |
X | Type of the update |
Y | Type of the defect |
l | The block level to invert. Default is 1 |
typedef X Dune::SeqSOR< M, X, Y, l >::domain_type |
The domain type of the preconditioner.
typedef X::field_type Dune::SeqSOR< M, X, Y, l >::field_type |
The field type of the preconditioner.
typedef M Dune::SeqSOR< M, X, Y, l >::matrix_type |
The matrix type the preconditioner is for.
typedef Y Dune::SeqSOR< M, X, Y, l >::range_type |
The range type of the preconditioner.
anonymous enum |
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inline |
Constructor.
constructor gets all parameters to operate the prec.
A | The matrix to operate on. |
n | The number of iterations to perform. |
w | The relaxation factor. |
References Dune::CheckIfDiagonalPresent< Matrix, blocklevel, l >::check().
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inlinevirtual |
Apply the preconditioner.
Apply one step of the preconditioner to the system A(v)=d.
Implements Dune::Preconditioner< X, Y >.
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inlinevirtual |
Apply the preconditioner in a special direction.
The template parameter forward indications the direction the smoother is applied. If true The application is started at the lowest index in the vector v, if false at the highest index of vector v.
Implements Dune::Preconditioner< X, Y >.
References Dune::bsorb(), and Dune::bsorf().
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inlinevirtual |
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inlinevirtual |