PETScLUSolver.h¶

Note

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

class PETScLUSolver¶

Parent class(es)

GenericLUSolver

PETScObject

This class implements the direct solution (LU factorization) for linear systems of the form Ax = b. It is a wrapper for the LU solver of PETSc.

PETScLUSolver(std::string method = "default")¶: Constructor

PETScLUSolver(std::shared_ptr<const PETScMatrix> A, std::string method = "default")¶: Constructor

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

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

const GenericLinearOperator &get_operator() const¶: Get operator (matrix)

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

std::size_t solve(GenericVector &x, const GenericVector &b, bool transpose)¶: Solve linear system Ax = b

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

std::size_t solve(const PETScMatrix &A, PETScVector &x, const PETScVector &b)¶: Solve linear system Ax = b

std::size_t solve_transpose(GenericVector &x, const GenericVector &b)¶: Solve linear system A^Tx = b

std::size_t solve_transpose(const GenericLinearOperator &A, GenericVector &x, const GenericVector &b)¶: Solve linear system A^Tx = b

std::size_t solve_transpose(const PETScMatrix &A, PETScVector &x, const PETScVector &b)¶: Solve linear system A^Tx = b

std::string str(bool verbose) const¶: Return informal string representation (pretty-print)

KSP ksp() const¶: Return PETSc KSP pointer

static std::vector<std::pair<std::string, std::string>> methods()¶: Return a list of available solver methods

static Parameters default_parameters()¶: Default parameter values