AMG preconditioner class, can be supplied to solve()-routines.
More...
#include <amg.hpp>
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| amg_precond () |
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| amg_precond (MatrixType const &mat, amg_tag const &tag) |
| The constructor. Saves system matrix, tag and builds data structures for setup. More...
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void | setup () |
| Start setup phase for this class and copy data structures. More...
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void | init_apply () const |
| Prepare data structures for preconditioning: Build data structures for precondition phase. Do LU factorization on coarsest level. More...
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template<typename VectorType > |
ScalarType | calc_complexity (VectorType &avgstencil) |
| Returns complexity measures. More...
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template<typename VectorType > |
void | apply (VectorType &vec) const |
| Precondition Operation. More...
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template<typename VectorType > |
void | smooth_jacobi (int level, int const iterations, VectorType &x, VectorType const &rhs) const |
| (Weighted) Jacobi Smoother (CPU version) More...
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amg_tag & | tag () |
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template<typename MatrixType>
class viennacl::linalg::amg_precond< MatrixType >
AMG preconditioner class, can be supplied to solve()-routines.
The constructor. Saves system matrix, tag and builds data structures for setup.
- Parameters
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mat | System matrix |
tag | The AMG tag |
void apply |
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VectorType & |
vec | ) |
const |
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inline |
Precondition Operation.
- Parameters
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vec | The vector to which preconditioning is applied to (ublas version) |
ScalarType calc_complexity |
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VectorType & |
avgstencil | ) |
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inline |
Returns complexity measures.
- Parameters
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avgstencil | Average stencil sizes on all levels |
- Returns
- Operator complexity of AMG method
void init_apply |
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const |
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inline |
Prepare data structures for preconditioning: Build data structures for precondition phase. Do LU factorization on coarsest level.
Start setup phase for this class and copy data structures.
void smooth_jacobi |
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int |
level, |
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int const |
iterations, |
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VectorType & |
x, |
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VectorType const & |
rhs |
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| const |
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inline |
(Weighted) Jacobi Smoother (CPU version)
- Parameters
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level | Coarse level to which smoother is applied to |
iterations | Number of smoother iterations |
x | The vector smoothing is applied to |
rhs | The right hand side of the equation for the smoother |
The documentation for this class was generated from the following file:
- /build/buildd/viennacl-1.5.2/viennacl/linalg/amg.hpp