eigensolver::ArPackFabric Class Reference

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

#include <arpackFabric.hh>

Inheritance diagram for eigensolver::ArPackFabric:

Collaboration diagram for eigensolver::ArPackFabric:

List of all members.

Public Member Functions
	ArPackFabric (int kmax=1, Real tol=0.0, const int maxiter=300, enum ArPackSymm::which target=ArPackSymm::SM, enum ArPackSymm::modus mode=ArPackSymm::REGINV, const Real sigma=0.0, const concepts::Vector< Real > *start=0)
	Constructor.
virtual ArPackSymm &	operator() (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
	Creates an eigenvalue solver which solves the abstract eigenvalue problem defined by stiff and mass.
virtual	~ArPackFabric ()
Protected Member Functions
virtual std::ostream &	info (std::ostream &os) const
	Returns information in an output stream.
Private Member Functions
	ArPackFabric (const ArPackFabric &)
void	bucklingMode_ (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
void	cayleyMode_ (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
void	normalMode_ (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
void	reginvMode_ (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
void	shiftinvMode_ (concepts::Operator< Real > &stiff, concepts::Operator< Real > &mass)
Private Attributes
std::auto_ptr < concepts::Operator< Real > >	B_
int	kmax_
	Number of eigenpairs to be computed.
int	maxiter_
	Maximum number of Arnoldi iterations allowed.
enum ArPackSymm::modus	mode_
	Mode in which ARPACK should be used.
std::auto_ptr < concepts::Operator< Real > >	OP_
const Real	sigma_
	Shift for the shift-invert, Buckling or Cayley mode.
std::auto_ptr< ArPackSymm >	solver_
const concepts::Vector< Real > *	start_
	Starting vector, if not given ARPACK invents one.
enum ArPackSymm::which	target_
	What sort of eigenvalues to compute.
std::auto_ptr < concepts::Operator< Real > >	tmp1_
std::auto_ptr < concepts::Operator< Real > >	tmp2_
Real	tol_
	Convergence tolerance for the eigenpairs.

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Detailed Description

Fabric class for ARPACK eigenvalue solver for a constrained problem.

Author:

Philipp Frauenfelder, 2002

Test:

test::GolubExample

test::GolubExampleSum

test::MaxwellTransmissionEVP

Examples:

hpFEM3d-EV.cc.

Definition at line 21 of file arpackFabric.hh.

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Constructor & Destructor Documentation

eigensolver::ArPackFabric::ArPackFabric	(	int	kmax = 1,
		Real	tol = 0.0,
		const int	maxiter = 300,
		enum ArPackSymm::which	target = ArPackSymm::SM,
		enum ArPackSymm::modus	mode = ArPackSymm::REGINV,
		const Real	sigma = 0.0,
		const concepts::Vector< Real > *	start = 0
	)		[inline]

Constructor.

Parameters:

kmax	Number of eigenpairs to be computed
tol	Convergence tolerance for the eigenpairs. The default value 0.0 is replaced by DLAMCH('EPS') from LAPACK.
maxiter	Maximum number of Arnoldi iterations allowed
target	What sort of eigenvalues to compute
mode	Mode in which ARPACK should be used
sigma	Shift for the shift-invert, Buckling or Cayley mode
start	Starting vector, if not given ARPACK invents one

Definition at line 33 of file arpackFabric.hh.

virtual eigensolver::ArPackFabric::~ArPackFabric

(

)

[virtual]

eigensolver::ArPackFabric::ArPackFabric

(

const ArPackFabric &

)

[private]

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Member Function Documentation

void eigensolver::ArPackFabric::bucklingMode_	(	concepts::Operator< Real > &	stiff,
		concepts::Operator< Real > &	mass
	)		[private]

void eigensolver::ArPackFabric::cayleyMode_	(	concepts::Operator< Real > &	stiff,
		concepts::Operator< Real > &	mass
	)		[private]

virtual std::ostream& eigensolver::ArPackFabric::info

(

std::ostream &

os

)

const [protected, virtual]

Returns information in an output stream.

Reimplemented from concepts::OutputOperator.

void eigensolver::ArPackFabric::normalMode_	(	concepts::Operator< Real > &	stiff,
		concepts::Operator< Real > &	mass
	)		[private]

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

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

Implements eigensolver::SolverFabric< Real >.

void eigensolver::ArPackFabric::reginvMode_	(	concepts::Operator< Real > &	stiff,
		concepts::Operator< Real > &	mass
	)		[private]

void eigensolver::ArPackFabric::shiftinvMode_	(	concepts::Operator< Real > &	stiff,
		concepts::Operator< Real > &	mass
	)		[private]

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Member Data Documentation

std::auto_ptr<concepts::Operator<Real> > eigensolver::ArPackFabric::B_ [private]

Definition at line 48 of file arpackFabric.hh.

int eigensolver::ArPackFabric::kmax_ [private]

Number of eigenpairs to be computed.

Definition at line 50 of file arpackFabric.hh.

int eigensolver::ArPackFabric::maxiter_ [private]

Maximum number of Arnoldi iterations allowed.

Definition at line 52 of file arpackFabric.hh.

enum ArPackSymm::modus eigensolver::ArPackFabric::mode_ [private]

Mode in which ARPACK should be used.

Definition at line 58 of file arpackFabric.hh.

std::auto_ptr<concepts::Operator<Real> > eigensolver::ArPackFabric::OP_ [private]

Definition at line 48 of file arpackFabric.hh.

const Real eigensolver::ArPackFabric::sigma_ [private]

Shift for the shift-invert, Buckling or Cayley mode.

Definition at line 60 of file arpackFabric.hh.

std::auto_ptr<ArPackSymm> eigensolver::ArPackFabric::solver_ [private]

Definition at line 47 of file arpackFabric.hh.

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

Starting vector, if not given ARPACK invents one.

Definition at line 62 of file arpackFabric.hh.

enum ArPackSymm::which eigensolver::ArPackFabric::target_ [private]

What sort of eigenvalues to compute.

Definition at line 56 of file arpackFabric.hh.

std::auto_ptr<concepts::Operator<Real> > eigensolver::ArPackFabric::tmp1_ [private]

Definition at line 48 of file arpackFabric.hh.

std::auto_ptr<concepts::Operator<Real> > eigensolver::ArPackFabric::tmp2_ [private]

Definition at line 48 of file arpackFabric.hh.

Real eigensolver::ArPackFabric::tol_ [private]

Convergence tolerance for the eigenpairs.

Definition at line 54 of file arpackFabric.hh.

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

• eigensolver/arpackFabric.hh