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Doxygen
1.9.1
Toolkit for Adaptive Stochastic Modeling and Non-Intrusive ApproximatioN: Tasmanian v8.2 (development)
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Doxygen
1.9.1
Toolkit for Adaptive Stochastic Modeling and Non-Intrusive ApproximatioN: Tasmanian v8.2 (development)
|
Used to manipulate the wavelet values and solve for the wavelet coefficients. More...
#include <tsgLinearSolvers.hpp>
Public Member Functions | |
| WaveletBasisMatrix () | |
| Default constructor, create an empty matrix. | |
| WaveletBasisMatrix (AccelerationContext const *acceleration, const std::vector< int > &lpntr, const std::vector< std::vector< int >> &lindx, const std::vector< std::vector< double >> &lvals) | |
| Initialize the matrix with the given set of indexes. | |
| WaveletBasisMatrix (AccelerationContext const *acceleration, int cnum_rows, GpuVector< double > &&matrix) | |
| Initialize the matrix in dense mode with the given data. | |
| ~WaveletBasisMatrix ()=default | |
| Default destructor. | |
| WaveletBasisMatrix (WaveletBasisMatrix const &)=delete | |
| Cannot copy. | |
| WaveletBasisMatrix (WaveletBasisMatrix &&)=default | |
| Move constructor. | |
| WaveletBasisMatrix & | operator= (WaveletBasisMatrix const &)=delete |
| Cannot copy. | |
| WaveletBasisMatrix & | operator= (WaveletBasisMatrix &&)=default |
| Move assignment. | |
| bool | isSparse () const |
| Return true if using the sparse mode and false is using dense mode or empty. | |
| bool | isDense () const |
| Return true if using the dense mode and false is using sparse mode or empty. | |
| int | getNumRows () const |
| Return the number of rows in the matrix. | |
| void | invertTransposed (AccelerationContext const *acceleration, double b[]) const |
Overwrites vector b with x that solves  . | |
| void | invert (AccelerationContext const *acceleration, int num_colums, double B[]) |
Overwrites the row-major matrix B with X that solves  . | |
| template<bool transpose, bool blas> | |
| void | solve (const double b[], double x[]) const |
Solve op(A) x = b where op is either identity (find the coefficients) or transpose (find the interpolation weights). | |
Static Public Member Functions | |
| static bool | useDense (AccelerationContext const *acceleration, int nrows) |
| Decide between sparse and dense variant of the algorithms. | |
Protected Member Functions | |
| void | factorize (AccelerationContext const *acceleration) |
| Computes the factorization of the matrix, ILU or PLU using the provided acceleration context (called by the constructor). | |
| void | computeILU () |
| Compute the incomplete lower-upper decomposition of the matrix (zero extra fill). | |
| template<bool transpose> | |
| void | applyILU (double x[]) const |
| Apply the preconditioner on a vector. | |
| template<bool transpose> | |
| void | apply (double const x[], double r[]) const |
| Sets to be the product of the sparse matrix times x. | |
| void | residual (double const x[], double const b[], double r[]) const |
| Computes the residual. | |
Static Protected Attributes | |
| static constexpr bool | use_transpose = true |
| Expressive call to transpose method. | |
| static constexpr bool | no_transpose = false |
| Expressive call to no transpose method. | |
| static constexpr bool | use_blas = true |
| Expressive call to blas variant method. | |
| static constexpr bool | no_blas = false |
| Expressive call to no-blas variant method. | |
Used to manipulate the wavelet values and solve for the wavelet coefficients.