UmfpackLUSolver.h¶

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class UmfpackLUSolver¶

Parent class(es)

GenericLUSolver

This class implements the direct solution (LU factorization) of linear systems of the form Ax = b using UMFPACK (http://www.cise.ufl.edu/research/sparse/umfpack/) if installed.

UmfpackLUSolver()¶: Constructor

UmfpackLUSolver(std::shared_ptr<const GenericLinearOperator> A)¶: Constructor

void set_operator(std::shared_ptr<const GenericLinearOperator> A)¶: Set operator (matrix)

const GenericLinearOperator &get_operator() const¶: Return the operator (matrix)

std::size_t solve(GenericVector &x, const GenericVector &b)¶: Solve linear system Ax = b for a sparse matrix using UMFPACK if installed

std::size_t solve(const GenericLinearOperator &A, GenericVector &x, const GenericVector &b)¶: Solve linear system

static Parameters default_parameters()¶: Default parameter values

void numeric_factorize()¶: LU factorisation

std::size_t solve_factorized(GenericVector &x, const GenericVector &b) const¶: Solve factorized system (UMFPACK).

static void umfpack_check_status(long int status, std::string function)¶: Check status flag returned by an UMFPACK function