EigenKrylovSolver¶

class dolfin.cpp.la.EigenKrylovSolver(*args)¶

This class implements Krylov methods for linear systems of the form Ax = b. It is a wrapper for the Krylov solvers of Eigen.

Create Krylov solver for a particular method and names preconditioner

Parameters:	method (std::string) – preconditioner (std::string) –

get_operator()¶

Get operator (matrix)

Return type:	std::shared_ptr< const EigenMatrix >

static methods()¶

Return a list of available solver methods.

Return type:	std::map< std::string, std::string >

static preconditioners()¶

Return a list of available preconditioners.

Return type:	std::map< std::string, std::string >

set_operator()¶

Set operator (matrix)

Parameters:	const GenericLinearOperator > A (std::shared_ptr<) –
Return type:	void

set_operators()¶

Set operator (matrix) and preconditioner matrix.

Parameters:	const GenericLinearOperator > A (std::shared_ptr<) – const GenericLinearOperator > P (std::shared_ptr<) –
Return type:	void

solve()¶

Solve linear system Ax = b and return number of iterations.

Parameters:	GenericLinearOperator & A (const) – & x (GenericVector) – GenericVector & b (const) –
Return type:	std::size_t