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

Inheritance diagram for MGTransferBlockGlobalCoarsening< dim, VectorType >:

Public Member Functions
	MGTransferBlockGlobalCoarsening (const MGTransferGlobalCoarsening< dim, VectorType > &transfer_operator)

virtual void	prolongate (const unsigned int to_level, LinearAlgebra::distributed::BlockVector< VectorType::value_type > &dst, const LinearAlgebra::distributed::BlockVector< VectorType::value_type > &src) const override

virtual void	prolongate_and_add (const unsigned int to_level, LinearAlgebra::distributed::BlockVector< VectorType::value_type > &dst, const LinearAlgebra::distributed::BlockVector< VectorType::value_type > &src) const override

virtual void	restrict_and_add (const unsigned int from_level, LinearAlgebra::distributed::BlockVector< VectorType::value_type > &dst, const LinearAlgebra::distributed::BlockVector< VectorType::value_type > &src) const override

void	copy_to_mg (const DoFHandler< dim, spacedim > &dof_handler, MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &dst, const LinearAlgebra::distributed::BlockVector< Number2 > &src) const

void	copy_to_mg (const std::vector< const DoFHandler< dim, spacedim > * > &dof_handler, MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &dst, const LinearAlgebra::distributed::BlockVector< Number2 > &src) const

void	copy_from_mg (const DoFHandler< dim, spacedim > &dof_handler, LinearAlgebra::distributed::BlockVector< Number2 > &dst, const MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &src) const

void	copy_from_mg (const std::vector< const DoFHandler< dim, spacedim > * > &dof_handler, LinearAlgebra::distributed::BlockVector< Number2 > &dst, const MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &src) const

Static Public Attributes
static const bool	supports_dof_handler_vector

Protected Member Functions
const MGTransferGlobalCoarsening< dim, VectorType > &	get_matrix_free_transfer (const unsigned int b) const override

Protected Attributes
const bool	same_for_all

Private Attributes
const MGTransferGlobalCoarsening< dim, VectorType > &	transfer_operator

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<int dim, typename VectorType>
class MGTransferBlockGlobalCoarsening< dim, VectorType >

This class works with LinearAlgebra::distributed::BlockVector and performs exactly the same transfer operations for each block as MGTransferGlobalCoarsening.

Definition at line 627 of file mg_transfer_global_coarsening.h.

Constructor & Destructor Documentation

◆ MGTransferBlockGlobalCoarsening()

template<int dim, typename VectorType >

MGTransferBlockGlobalCoarsening< dim, VectorType >::MGTransferBlockGlobalCoarsening ( const MGTransferGlobalCoarsening< dim, VectorType > & transfer_operator )

Constructor.

Member Function Documentation

◆ get_matrix_free_transfer()

template<int dim, typename VectorType >

const MGTransferGlobalCoarsening< dim, VectorType > & MGTransferBlockGlobalCoarsening< dim, VectorType >::get_matrix_free_transfer ( const unsigned int b ) const

overrideprotectedvirtual

Return the right non-block transfer operator. Has to be implemented by the derived class.

Implements MGTransferBlockMatrixFreeBase< dim, VectorType::value_type, MGTransferGlobalCoarsening< dim, VectorType > >.

◆ prolongate()

virtual void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::prolongate	(	const unsigned int	to_level,
		LinearAlgebra::distributed::BlockVector< VectorType::value_type > &	dst,
		const LinearAlgebra::distributed::BlockVector< VectorType::value_type > &	src
	)		const

overridevirtualinherited

Prolongate a vector from level to_level-1 to level to_level using the embedding matrices of the underlying finite element. The previous content of dst is overwritten.

Parameters

to_level	The index of the level to prolongate to, which is the level of `dst`.
src	is a vector with as many elements as there are degrees of freedom on the coarser level involved.
dst	has as many elements as there are degrees of freedom on the finer level.

Implements MGTransferBase< LinearAlgebra::distributed::BlockVector< VectorType::value_type > >.

◆ prolongate_and_add()

virtual void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::prolongate_and_add	(	const unsigned int	to_level,
		LinearAlgebra::distributed::BlockVector< VectorType::value_type > &	dst,
		const LinearAlgebra::distributed::BlockVector< VectorType::value_type > &	src
	)		const

overridevirtualinherited

Prolongate a vector from level to_level-1 to level to_level, summing into the previous content of dst.

src is a vector with as many elements as there are degrees of freedom on the coarser level involved.

dst has as many elements as there are degrees of freedom on the finer level.

Reimplemented from MGTransferBase< LinearAlgebra::distributed::BlockVector< VectorType::value_type > >.

◆ restrict_and_add()

virtual void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::restrict_and_add	(	const unsigned int	from_level,
		LinearAlgebra::distributed::BlockVector< VectorType::value_type > &	dst,
		const LinearAlgebra::distributed::BlockVector< VectorType::value_type > &	src
	)		const

overridevirtualinherited

Restrict a vector from level from_level to level from_level-1 using the transpose operation of the prolongate() method. If the region covered by cells on level from_level is smaller than that of level from_level-1 (local refinement), then some degrees of freedom in dst are active and will not be altered. For the other degrees of freedom, the result of the restriction is added.

Parameters

from_level	The index of the level to restrict from, which is the level of `src`.
src	is a vector with as many elements as there are degrees of freedom on the finer level involved.
dst	has as many elements as there are degrees of freedom on the coarser level.

Implements MGTransferBase< LinearAlgebra::distributed::BlockVector< VectorType::value_type > >.

◆ copy_to_mg() [1/2]

void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::copy_to_mg	(	const DoFHandler< dim, spacedim > &	dof_handler,
		MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &	dst,
		const LinearAlgebra::distributed::BlockVector< Number2 > &	src
	)		const

inherited

Transfer from a block-vector on the global grid to block-vectors defined on each of the levels separately for active degrees of freedom. In particular, for a globally refined mesh only the finest level in dst is filled as a plain copy of src. All the other level objects are left untouched.

This function will initialize dst accordingly if needed as required by the Multigrid class.

◆ copy_to_mg() [2/2]

void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::copy_to_mg	(	const std::vector< const DoFHandler< dim, spacedim > * > &	dof_handler,
		MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &	dst,
		const LinearAlgebra::distributed::BlockVector< Number2 > &	src
	)		const

inherited

Same as above for the case that each block has its own DoFHandler.

◆ copy_from_mg() [1/2]

void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::copy_from_mg	(	const DoFHandler< dim, spacedim > &	dof_handler,
		LinearAlgebra::distributed::BlockVector< Number2 > &	dst,
		const MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &	src
	)		const

inherited

Transfer from multi-level block-vector to normal vector.

◆ copy_from_mg() [2/2]

void MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::copy_from_mg	(	const std::vector< const DoFHandler< dim, spacedim > * > &	dof_handler,
		LinearAlgebra::distributed::BlockVector< Number2 > &	dst,
		const MGLevelObject< LinearAlgebra::distributed::BlockVector< VectorType::value_type > > &	src
	)		const

inherited

Same as above for the case that each block has its own DoFHandler.

Member Data Documentation

◆ transfer_operator

template<int dim, typename VectorType >

const MGTransferGlobalCoarsening<dim, VectorType>& MGTransferBlockGlobalCoarsening< dim, VectorType >::transfer_operator

private

Non-block version of transfer operation.

Definition at line 648 of file mg_transfer_global_coarsening.h.

◆ supports_dof_handler_vector

const bool MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::supports_dof_handler_vector

staticinherited

This class can both be used with a single DoFHandler or a separate DoFHandler for each block.

Definition at line 431 of file mg_transfer_matrix_free.h.

◆ same_for_all

const bool MGTransferBlockMatrixFreeBase< dim, VectorType::value_type , MGTransferGlobalCoarsening< dim, VectorType > >::same_for_all

protectedinherited

A flag to indicate whether the same DoFHandler is used for all the components or if each block has its own DoFHandler.

Definition at line 445 of file mg_transfer_matrix_free.h.

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

include/deal.II/multigrid/mg_transfer_global_coarsening.h

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Private Attributes

Subscriptor functionality

Detailed Description

Constructor & Destructor Documentation

◆ MGTransferBlockGlobalCoarsening()

Member Function Documentation

◆ get_matrix_free_transfer()

◆ prolongate()

◆ prolongate_and_add()

◆ restrict_and_add()

◆ copy_to_mg() [1/2]

◆ copy_to_mg() [2/2]

◆ copy_from_mg() [1/2]

◆ copy_from_mg() [2/2]

Member Data Documentation

◆ transfer_operator

◆ supports_dof_handler_vector

◆ same_for_all