ExaDG::ConvDiff::MultigridPreconditioner< dim, Number > Class Template Reference

Inheritance diagram for ExaDG::ConvDiff::MultigridPreconditioner< dim, Number >:

Public Types
typedef Base::MultigridNumber	MultigridNumber
Public Types inherited from ExaDG::MultigridPreconditionerBase< dim, Number, MultigridNumber_ >
typedef MultigridNumber_	MultigridNumber
Public Types inherited from ExaDG::PreconditionerBase< Number >
typedef dealii::LinearAlgebra::distributed::Vector< Number >	VectorType

Public Member Functions
	MultigridPreconditioner (MPI_Comm const &mpi_comm)
void	initialize (MultigridData const &mg_data, std::shared_ptr< Grid< dim > const > grid, std::shared_ptr< MultigridMappings< dim, Number > > const multigrid_mappings, dealii::FiniteElement< dim > const &fe, PDEOperator const &pde_operator, MultigridOperatorType const &mg_operator_type, bool const mesh_is_moving, Map_DBC const &dirichlet_bc, Map_DBC_ComponentMask const &dirichlet_bc_component_mask)
void	update () final
Public Member Functions inherited from ExaDG::MultigridPreconditionerBase< dim, Number, MultigridNumber_ >
	MultigridPreconditionerBase (MPI_Comm const &comm)
void	initialize (MultigridData const &data, std::shared_ptr< Grid< dim > const > grid, std::shared_ptr< MultigridMappings< dim, Number > > const multigrid_mappings, dealii::FiniteElement< dim > const &fe, bool const operator_is_singular, Map_DBC const &dirichlet_bc, Map_DBC_ComponentMask const &dirichlet_bc_component_mask, bool const initialize_preconditioners)
void	update () override
void	vmult (VectorType &dst, VectorType const &src) const override
unsigned int	solve (VectorType &dst, VectorType const &src) const
virtual void	apply_smoother_on_fine_level (VectorTypeMG &dst, VectorTypeMG const &src) const
std::shared_ptr< TimerTree >	get_timings () const override
Public Member Functions inherited from ExaDG::PreconditionerBase< Number >
bool	needs_update () const

Additional Inherited Members
Protected Types inherited from ExaDG::MultigridPreconditionerBase< dim, Number, MultigridNumber_ >
typedef std::map< dealii::types::boundary_id, std::shared_ptr< dealii::Function< dim > > >	Map_DBC
typedef std::map< dealii::types::boundary_id, dealii::ComponentMask >	Map_DBC_ComponentMask
typedef std::vector< dealii::GridTools::PeriodicFacePair< typename dealii::Triangulation< dim >::cell_iterator > >	PeriodicFacePairs
typedef dealii::LinearAlgebra::distributed::Vector< Number >	VectorType
typedef dealii::LinearAlgebra::distributed::Vector< MultigridNumber >	VectorTypeMG
Protected Member Functions inherited from ExaDG::MultigridPreconditionerBase< dim, Number, MultigridNumber_ >
void	initialize_mapping ()
virtual void	initialize_matrix_free_objects ()
void	update_matrix_free_objects ()
void	update_smoothers ()
void	update_coarse_solver ()
void	do_initialize_dof_handler_and_constraints (bool is_singular, unsigned int const n_components, Map_DBC const &dirichlet_bc, Map_DBC_ComponentMask const &dirichlet_bc_component_mask, dealii::MGLevelObject< std::shared_ptr< dealii::DoFHandler< dim > const > > &dofhandlers, dealii::MGLevelObject< std::shared_ptr< dealii::AffineConstraints< MultigridNumber > > > &constraints)
void	do_initialize_transfer_operators (std::shared_ptr< MultigridTransfer< dim, MultigridNumber, VectorTypeMG > > &transfers, unsigned int const dof_index)
unsigned int	get_number_of_levels () const
void	for_all_levels (std::function< void(unsigned int const)> const &function_on_level)
void	for_all_smoothing_levels (std::function< void(unsigned int const)> const &function_on_level)
void	transfer_from_fine_to_coarse_levels (std::function< void(unsigned int const, unsigned int const)> const &levelwise_transfer)
Protected Attributes inherited from ExaDG::MultigridPreconditionerBase< dim, Number, MultigridNumber_ >
std::shared_ptr< Grid< dim > const >	grid
std::shared_ptr< MultigridMappings< dim, Number > >	multigrid_mappings
dealii::MGLevelObject< std::shared_ptr< dealii::DoFHandler< dim > const > >	dof_handlers
dealii::MGLevelObject< std::shared_ptr< dealii::AffineConstraints< MultigridNumber > > >	constraints
dealii::MGLevelObject< std::shared_ptr< MatrixFreeData< dim, MultigridNumber > > >	matrix_free_data_objects
dealii::MGLevelObject< std::shared_ptr< dealii::MatrixFree< dim, MultigridNumber > > >	matrix_free_objects
dealii::MGLevelObject< std::shared_ptr< Operator > >	operators
std::shared_ptr< MultigridTransfer< dim, MultigridNumber, VectorTypeMG > >	transfers
std::vector< MGLevelInfo >	level_info
Protected Attributes inherited from ExaDG::PreconditionerBase< Number >
bool	update_needed

Member Function Documentation

initialize()

template<int dim, typename Number >

void ExaDG::ConvDiff::MultigridPreconditioner< dim, Number >::initialize	(	MultigridData const &	mg_data,
		std::shared_ptr< Grid< dim > const >	grid,
		std::shared_ptr< MultigridMappings< dim, Number > > const	multigrid_mappings,
		dealii::FiniteElement< dim > const &	fe,
		PDEOperator const &	pde_operator,
		MultigridOperatorType const &	mg_operator_type,
		bool const	mesh_is_moving,
		Map_DBC const &	dirichlet_bc,
		Map_DBC_ComponentMask const &	dirichlet_bc_component_mask )

This function initializes the multigrid preconditioner.

update()

template<int dim, typename Number >

void ExaDG::ConvDiff::MultigridPreconditioner< dim, Number >::update ( )

finalvirtual

This function updates the multigrid preconditioner.

Implements ExaDG::PreconditionerBase< Number >.

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

• include/exadg/convection_diffusion/preconditioners/multigrid_preconditioner.h
• include/exadg/convection_diffusion/preconditioners/multigrid_preconditioner.cpp