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Eigen
3.3.3
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A sparse direct incomplete LU factorization and solver based on the SuperLU library.
This class allows to solve for an approximate solution of A.X = B sparse linear problems via an incomplete LU factorization using the SuperLU library. This class is aimed to be used as a preconditioner of the iterative linear solvers.
_MatrixType | the type of the sparse matrix A, it must be a SparseMatrix<> |
This class follows the sparse solver concept .
Public Member Functions | |
void | analyzePattern (const MatrixType &matrix) |
void | factorize (const MatrixType &matrix) |
void Eigen::SuperILU< _MatrixType >::analyzePattern | ( | const MatrixType & | matrix | ) | [inline] |
Performs a symbolic decomposition on the sparcity of matrix.
This function is particularly useful when solving for several problems having the same structure.
Reimplemented from Eigen::SuperLUBase< _MatrixType, SuperILU< _MatrixType > >.
void Eigen::SuperILU< MatrixType >::factorize | ( | const MatrixType & | matrix | ) |
Performs a numeric decomposition of matrix
The given matrix must has the same sparcity than the matrix on which the symbolic decomposition has been performed.