#include <jdbsymFabric.hh>

Inheritance diagram for eigensolver::JdbSymFabric:

Public Member Functions
	JdbSymFabric (Real tol, uint maxit=150, Real tau=0.0, uint jdtype=1, uint kmax=1, concepts::SolverFabric< Real > fabric=0, const concepts::Array< concepts::Vector< Real > > *start=0)

virtual JdbSym &	operator() (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)

virtual EigenSolver< F > &	operator() (concepts::Operator< F > &stiff, concepts::Operator< Real > &mass)=0

Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.

Detailed Description

Fabric class for JdbSym eigenvalue solver for a constrained problem.

Author: Philipp Frauenfelder, 2002

Test:

test::GolubExample

test::GolubExampleSum

test::MaxwellTransmissionEVP

Definition at line 23 of file jdbsymFabric.hh.

Constructor & Destructor Documentation

◆ JdbSymFabric()

eigensolver::JdbSymFabric::JdbSymFabric	(	Real	tol,
		uint	maxit = `150`,
		Real	tau = `0.0`,
		uint	jdtype = `1`,
		uint	kmax = `1`,
		concepts::SolverFabric< Real > *	fabric = `0`,
		const concepts::Array< concepts::Vector< Real > * > *	start = `0`
	)

inline

Constructor.

Parameters

fabric	Solver fabric for a linear solver (preconditioner for the shifted stiffness matrix)
tol	Convergence tolerance for the eigenpairs. For a pair $(\lambda, u)$ convergence is defined by $\\| A u - \lambda B u \\| < tol$
tau	Target value of Jacobi-Davidson algorithm. The code will find the `kmax` eigenvalues closest to `tau`.
jdtype	Type of solver required. An older solver and a newer solver are possible to use.
kmax	Number of eigenpairs to be computed
start	Starting vectors. Used to build the initial search subspace

Definition at line 39 of file jdbsymFabric.hh.

Member Function Documentation

◆ info()

virtual std::ostream & eigensolver::JdbSymFabric::info ( std::ostream & os ) const

protectedvirtual

Returns information in an output stream.

Reimplemented from concepts::OutputOperator.

◆ operator()()

template<typename F >

virtual EigenSolver< F > & eigensolver::SolverFabric< F >::operator()	(	concepts::Operator< F > &	stiff,
		concepts::Operator< Real > &	mass
	)

pure virtualinherited

Creates an eigenvalue solver which solves the abstract eigenvalue problem defined by stiff and mass. This fabric should only by used once as subsequent uses would invalidate older solvers.

Returns: Pointer to eigenvalue solver

The documentation for this class was generated from the following file:

eigensolver/jdbsymFabric.hh

Class documentation of Concepts