MGCoarseGridHouseholder< number, VECTOR > Class Template Reference

#include <mg_coarse.h>

Inheritance diagram for MGCoarseGridHouseholder< number, VECTOR >:

Public Member Functions
	MGCoarseGridHouseholder (const FullMatrix< number > *A=0)
void	initialize (const FullMatrix< number > &A)
void	operator() (const unsigned int level, VECTOR &dst, const VECTOR &src) const
Public Member Functions inherited from MGCoarseGridBase< VECTOR >
virtual	~MGCoarseGridBase ()
Public Member Functions inherited from Subscriptor
	Subscriptor ()
	Subscriptor (const Subscriptor &)
virtual	~Subscriptor ()
Subscriptor &	operator= (const Subscriptor &)
void	subscribe (const char *identifier=0) const
void	unsubscribe (const char *identifier=0) const
unsigned int	n_subscriptions () const
void	list_subscribers () const
	DeclException3 (ExcInUse, int, char *, std::string &,<< "Object of class "<< arg2<< " is still used by "<< arg1<< " other objects.\n"<< "(Additional information: "<< arg3<< ")\n"<< "Note the entry in the Frequently Asked Questions of "<< "deal.II (linked to from http://www.dealii.org/) for "<< "more information on what this error means.")
	DeclException2 (ExcNoSubscriber, char *, char *,<< "No subscriber with identifier \""<< arg2<< "\" did subscribe to this object of class "<< arg1)
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)

Private Attributes
Householder< number >	householder

Detailed Description

template<typename number = double, class VECTOR = Vector<number>>
class MGCoarseGridHouseholder< number, VECTOR >

Coarse grid solver by QR factorization implemented in the class Householder.

Upon initialization, the QR decomposition of the matrix is computed. then, the operator() uses Householder::least_squares() to compute the action of the inverse.

Author

Guido Kanschat, 2003, 2012

Definition at line 129 of file mg_coarse.h.

Constructor & Destructor Documentation

template<typename number = double, class VECTOR = Vector<number>>

MGCoarseGridHouseholder< number, VECTOR >::MGCoarseGridHouseholder

(

const FullMatrix< number > *

A = 0

)

Constructor, taking the coarse grid matrix.

Member Function Documentation

template<typename number = double, class VECTOR = Vector<number>>

void MGCoarseGridHouseholder< number, VECTOR >::initialize

(

const FullMatrix< number > &

A

)

Initialize for a new matrix.

template<typename number = double, class VECTOR = Vector<number>>

void MGCoarseGridHouseholder< number, VECTOR >::operator() ( const unsigned int  level, VECTOR &  dst, const VECTOR &  src  ) const

virtual

Solution operator.

Implements MGCoarseGridBase< VECTOR >.

Member Data Documentation

template<typename number = double, class VECTOR = Vector<number>>

Householder<number> MGCoarseGridHouseholder< number, VECTOR >::householder

private

Matrix for QR-factorization.

Definition at line 151 of file mg_coarse.h.

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

• include/deal.II/multigrid/mg_coarse.h