dune-istl
2.2.1
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Sequential Gauss Seidel 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 | |
SeqGS (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... | |
virtual void | post (X &x) |
Clean up. More... | |
Sequential Gauss Seidel preconditioner.
Wraps the naked ISTL generic block Gauss-Seidel 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::SeqGS< M, X, Y, l >::domain_type |
The domain type of the preconditioner.
typedef X::field_type Dune::SeqGS< M, X, Y, l >::field_type |
The field type of the preconditioner.
typedef M Dune::SeqGS< M, X, Y, l >::matrix_type |
The matrix type the preconditioner is for.
typedef Y Dune::SeqGS< 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 >.
References Dune::dbgs().
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inlinevirtual |
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inlinevirtual |