eigensolver::JdbSymFabric Class Reference

Fabric class for JdbSym eigenvalue solver for a constrained problem. More...

#include <jdbsymFabric.hh>

Inheritance diagram for eigensolver::JdbSymFabric:

Collaboration diagram for eigensolver::JdbSymFabric:

List of all members.

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)
	Constructor.
virtual EigenSolver< F > &	operator() (concepts::Operator< F > &stiff, concepts::Operator< Real > &mass)=0
	Creates an eigenvalue solver which solves the abstract eigenvalue problem defined by stiff and mass.
virtual JdbSym &	operator() (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
virtual	~JdbSymFabric ()
Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
Private Attributes
concepts::SolverFabric< Real > *	fabric_
uint	jdtype_
uint	kmax_
uint	maxit_
std::auto_ptr< JdbSym >	solver_
	Real eigenvalue solver.
const concepts::Array < concepts::Vector< Real > * > *	start_
Real	tau_
Real	tol_

---

Detailed Description

Fabric class for JdbSym eigenvalue solver for a constrained problem.

Author:

Philipp Frauenfelder, 2002

Test:

test::GolubExample

test::GolubExampleSum

test::MaxwellTransmissionEVP

Examples:

hpFEM3d-EV.cc.

Definition at line 20 of file jdbsymFabric.hh.

---

Constructor & Destructor Documentation

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 convergence is defined by
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 36 of file jdbsymFabric.hh.

virtual eigensolver::JdbSymFabric::~JdbSymFabric

(

)

[virtual]

---

Member Function Documentation

virtual std::ostream& eigensolver::JdbSymFabric::info

(

std::ostream &

os

)

const [protected, virtual]

Returns information in an output stream.

Reimplemented from concepts::OutputOperator.

template<typename F>

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

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

Implemented in eigensolver::ArPackFabric.

virtual JdbSym& eigensolver::JdbSymFabric::operator()	(	concepts::Operator< Real > &	stiff,
		concepts::Operator< Real > &	mass
	)		[virtual]

---

Member Data Documentation

concepts::SolverFabric<Real>* eigensolver::JdbSymFabric::fabric_ [private]

Definition at line 52 of file jdbsymFabric.hh.

uint eigensolver::JdbSymFabric::jdtype_ [private]

Definition at line 51 of file jdbsymFabric.hh.

uint eigensolver::JdbSymFabric::kmax_ [private]

Definition at line 51 of file jdbsymFabric.hh.

uint eigensolver::JdbSymFabric::maxit_ [private]

Definition at line 51 of file jdbsymFabric.hh.

std::auto_ptr<JdbSym> eigensolver::JdbSymFabric::solver_ [private]

Real eigenvalue solver.

Definition at line 49 of file jdbsymFabric.hh.

const concepts::Array<concepts::Vector<Real>*>* eigensolver::JdbSymFabric::start_ [private]

Definition at line 53 of file jdbsymFabric.hh.

Real eigensolver::JdbSymFabric::tau_ [private]

Definition at line 50 of file jdbsymFabric.hh.

Real eigensolver::JdbSymFabric::tol_ [private]

Definition at line 50 of file jdbsymFabric.hh.

---

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

• eigensolver/jdbsymFabric.hh