MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType > Class Template Reference

#include <deal.II/multigrid/mg_coarse.h>

Inheritance diagram for MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >:

Public Member Functions
	MGCoarseGridIterativeSolver ()
	MGCoarseGridIterativeSolver (SolverType &solver, const MatrixType &matrix, const PreconditionerType &precondition)
void	initialize (SolverType &solver, const MatrixType &matrix, const PreconditionerType &precondition)
void	clear ()
virtual void	operator() (const unsigned int level, VectorType &dst, const VectorType &src) const override

Private Attributes
SmartPointer< SolverType, MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType > >	solver
SmartPointer< const MatrixType, MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType > >	matrix
SmartPointer< const PreconditionerType, MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType > >	preconditioner

Subscriptor functionality
Classes derived from Subscriptor provide a facility to subscribe to this object. This is mostly used by the SmartPointer class.
std::atomic< unsigned int >	counter
std::map< std::string, unsigned int >	counter_map
std::vector< std::atomic< bool > * >	validity_pointers
const std::type_info *	object_info
void	subscribe (std::atomic< bool > *const validity, const std::string &identifier="") const
void	unsubscribe (std::atomic< bool > *const validity, const std::string &identifier="") const
unsigned int	n_subscriptions () const
template<typename StreamType >
void	list_subscribers (StreamType &stream) const
void	list_subscribers () const
template<class Archive >
void	serialize (Archive &ar, const unsigned int version)
using	map_value_type = decltype(counter_map)::value_type
using	map_iterator = decltype(counter_map)::iterator
static std::mutex	mutex
static ::ExceptionBase &	ExcInUse (int arg1, std::string arg2, std::string arg3)
static ::ExceptionBase &	ExcNoSubscriber (std::string arg1, std::string arg2)
void	check_no_subscribers () const noexcept

Detailed Description

template<class VectorType, class SolverType, class MatrixType, class PreconditionerType>
class MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >

Coarse grid multigrid operator for an iterative solver.

This class provides a wrapper for a deal.II iterative solver with a given matrix and preconditioner as a coarse grid operator.

Definition at line 92 of file mg_coarse.h.

Constructor & Destructor Documentation

MGCoarseGridIterativeSolver() [1/2]

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::MGCoarseGridIterativeSolver

(

)

Default constructor.

MGCoarseGridIterativeSolver() [2/2]

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::MGCoarseGridIterativeSolver	(	SolverType &	solver,
		const MatrixType &	matrix,
		const PreconditionerType &	precondition
	)

Constructor. Only a reference to these objects is stored, so their lifetime needs to exceed the usage in this class.

Member Function Documentation

initialize()

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

void MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::initialize	(	SolverType &	solver,
		const MatrixType &	matrix,
		const PreconditionerType &	precondition
	)

Initialize with new data, see the corresponding constructor for more details.

clear()

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

void MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::clear

(

)

Clear all pointers.

operator()()

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

virtual void MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::operator() ( const unsigned int  level, VectorType &  dst, const VectorType &  src  ) const

overridevirtual

Implementation of the abstract function. Calls the solve method of the given solver with matrix, vectors, and preconditioner.

Implements MGCoarseGridBase< VectorType >.

Member Data Documentation

solver

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

SmartPointer<SolverType, MGCoarseGridIterativeSolver<VectorType, SolverType, MatrixType, PreconditionerType> > MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::solver

private

Reference to the solver.

Definition at line 141 of file mg_coarse.h.

matrix

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

SmartPointer<const MatrixType, MGCoarseGridIterativeSolver<VectorType, SolverType, MatrixType, PreconditionerType> > MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::matrix

private

Reference to the matrix.

Definition at line 151 of file mg_coarse.h.

preconditioner

template<class VectorType , class SolverType , class MatrixType , class PreconditionerType >

SmartPointer<const PreconditionerType, MGCoarseGridIterativeSolver<VectorType, SolverType, MatrixType, PreconditionerType> > MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType >::preconditioner

private

Reference to the preconditioner.

Definition at line 161 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