Reference documentation for deal.II version Git d435e92be9 2020-09-23 09:04:26 -0400
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Public Member Functions | Static Public Member Functions | Private Attributes | List of all members
MGCoarseGridIterativeSolver< VectorType, SolverType, MatrixType, PreconditionerType > Class Template Reference

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

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

Static Public Member Functions

static ::ExceptionBaseExcInUse (int arg1, std::string arg2, std::string arg3)
 
static ::ExceptionBaseExcNoSubscriber (std::string arg1, std::string arg2)
 

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
 

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 >.

◆ subscribe()

void Subscriptor::subscribe ( std::atomic< bool > *const  validity,
const std::string &  identifier = "" 
) const
inherited

Subscribes a user of the object by storing the pointer validity. The subscriber may be identified by text supplied as identifier.

Definition at line 136 of file subscriptor.cc.

◆ unsubscribe()

void Subscriptor::unsubscribe ( std::atomic< bool > *const  validity,
const std::string &  identifier = "" 
) const
inherited

Unsubscribes a user from the object.

Note
The identifier and the validity pointer must be the same as the one supplied to subscribe().

Definition at line 156 of file subscriptor.cc.

◆ n_subscriptions()

unsigned int Subscriptor::n_subscriptions ( ) const
inlineinherited

Return the present number of subscriptions to this object. This allows to use this class for reference counted lifetime determination where the last one to unsubscribe also deletes the object.

Definition at line 290 of file subscriptor.h.

◆ list_subscribers() [1/2]

template<typename StreamType >
void Subscriptor::list_subscribers ( StreamType &  stream) const
inlineinherited

List the subscribers to the input stream.

Definition at line 307 of file subscriptor.h.

◆ list_subscribers() [2/2]

void Subscriptor::list_subscribers ( ) const
inherited

List the subscribers to deallog.

Definition at line 204 of file subscriptor.cc.

◆ serialize()

template<class Archive >
void Subscriptor::serialize ( Archive &  ar,
const unsigned int  version 
)
inlineinherited

Read or write the data of this object to or from a stream for the purpose of serialization.

This function does not actually serialize any of the member variables of this class. The reason is that what this class stores is only who subscribes to this object, but who does so at the time of storing the contents of this object does not necessarily have anything to do with who subscribes to the object when it is restored. Consequently, we do not want to overwrite the subscribers at the time of restoring, and then there is no reason to write the subscribers out in the first place.

Definition at line 299 of file subscriptor.h.

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.


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