#include <arpackFabric.hh>

Inheritance diagram for eigensolver::ArPackFabric:

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)

virtual ArPackSymm &	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 ARPACK eigenvalue solver for a constrained problem.

Author: Philipp Frauenfelder, 2002

Test:

test::GolubExample

test::GolubExampleSum

test::MaxwellTransmissionEVP

Definition at line 24 of file arpackFabric.hh.

Constructor & Destructor Documentation

◆ ArPackFabric()

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 36 of file arpackFabric.hh.

Member Function Documentation

◆ info()

virtual std::ostream & eigensolver::ArPackFabric::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/arpackFabric.hh

Class documentation of Concepts