template<typename _MatrixType>

Eigen::SuperILU class

A sparse direct incomplete LU factorization and solver based on the SuperLU library.

Template parameters
_MatrixType	the type of the sparse matrix A, it must be a SparseMatrix<>

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.

This class follows the sparse solver concept.

Base classes

template<typename _MatrixType, typename Derived>

class SuperLUBase

The base class for the direct and incomplete LU factorization of SuperLU.

Public functions

void analyzePattern(const MatrixType& matrix)

void factorize(const MatrixType& matrix)

Function documentation

template<typename _MatrixType>

void Eigen::SuperILU<_MatrixType>::analyzePattern(const MatrixType& matrix)

Performs a symbolic decomposition on the sparcity of matrix.

This function is particularly useful when solving for several problems having the same structure.

template<typename _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.