deal.II version GIT relicensing-2165-gc91f007519 2024-11-20 01:40:00+00:00
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Public Member Functions | Public Attributes | List of all members
internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType > Struct Template Reference
Matrix-free infrastructure

#include <deal.II/matrix_free/mapping_info.h>

Inheritance diagram for internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >:
Inheritance graph
[legend]

Public Member Functions

void initialize (const ::Triangulation< dim > &tria, const std::vector< std::pair< unsigned int, unsigned int > > &cells, const FaceInfo< VectorizedArrayType::size()> &face_info, const std::vector< unsigned int > &active_fe_index, const std::shared_ptr<::hp::MappingCollection< dim > > &mapping, const std::vector<::hp::QCollection< dim > > &quad, const UpdateFlags update_flags_cells, const UpdateFlags update_flags_boundary_faces, const UpdateFlags update_flags_inner_faces, const UpdateFlags update_flags_faces_by_cells, const bool piola_transform)
 
void update_mapping (const ::Triangulation< dim > &tria, const std::vector< std::pair< unsigned int, unsigned int > > &cells, const FaceInfo< VectorizedArrayType::size()> &face_info, const std::vector< unsigned int > &active_fe_index, const std::shared_ptr<::hp::MappingCollection< dim > > &mapping)
 
GeometryType get_cell_type (const unsigned int cell_chunk_no) const
 
void clear ()
 
std::size_t memory_consumption () const
 
template<typename StreamType >
void print_memory_consumption (StreamType &out, const TaskInfo &task_info) const
 
void compute_mapping_q (const ::Triangulation< dim > &tria, const std::vector< std::pair< unsigned int, unsigned int > > &cells, const FaceInfo< VectorizedArrayType::size()> &face_info)
 
void initialize_cells (const ::Triangulation< dim > &tria, const std::vector< std::pair< unsigned int, unsigned int > > &cells, const std::vector< unsigned int > &active_fe_index, const ::hp::MappingCollection< dim > &mapping)
 
void initialize_faces (const ::Triangulation< dim > &tria, const std::vector< std::pair< unsigned int, unsigned int > > &cells, const std::vector< FaceToCellTopology< VectorizedArrayType::size()> > &faces, const std::vector< unsigned int > &active_fe_index, const ::hp::MappingCollection< dim > &mapping)
 
void initialize_faces_by_cells (const ::Triangulation< dim > &tria, const std::vector< std::pair< unsigned int, unsigned int > > &cells, const FaceInfo< VectorizedArrayType::size()> &face_info, const ::hp::MappingCollection< dim > &mapping)
 

Public Attributes

UpdateFlags update_flags_cells
 
UpdateFlags update_flags_boundary_faces
 
UpdateFlags update_flags_inner_faces
 
UpdateFlags update_flags_faces_by_cells
 
std::vector< GeometryType > cell_type
 
std::vector< GeometryType > face_type
 
std::vector< std::array< GeometryType, GeometryInfo< dim >::faces_per_cell > > faces_by_cells_type
 
std::vector< MappingInfoStorage< dim, dim, VectorizedArrayType > > cell_data
 
std::vector< MappingInfoStorage< dim - 1, dim, VectorizedArrayType > > face_data
 
std::vector< MappingInfoStorage< dim - 1, dim, VectorizedArrayType > > face_data_by_cells
 
std::shared_ptr<::hp::MappingCollection< dim > > mapping_collection
 
ObserverPointer< const Mapping< dim > > mapping
 
std::vector< std::vector< ReferenceCell > > reference_cell_types
 

Detailed Description

template<int dim, typename Number, typename VectorizedArrayType>
struct internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >

The class that stores all geometry-dependent data related with cell interiors for use in the matrix-free class.

Definition at line 54 of file mapping_info.h.

Member Function Documentation

◆ initialize()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::initialize ( const ::Triangulation< dim > &  tria,
const std::vector< std::pair< unsigned int, unsigned int > > &  cells,
const FaceInfo< VectorizedArrayType::size()> &  face_info,
const std::vector< unsigned int > &  active_fe_index,
const std::shared_ptr<::hp::MappingCollection< dim > > &  mapping,
const std::vector<::hp::QCollection< dim > > &  quad,
const UpdateFlags  update_flags_cells,
const UpdateFlags  update_flags_boundary_faces,
const UpdateFlags  update_flags_inner_faces,
const UpdateFlags  update_flags_faces_by_cells,
const bool  piola_transform 
)

Compute the information in the given cells and faces. The cells are specified by the level and the index within the level (as given by CellIterator::level() and CellIterator::index(), in order to allow for different kinds of iterators, e.g. standard DoFHandler, multigrid, etc.) on a fixed Triangulation. In addition, a mapping and several 1d quadrature formulas are given.

◆ update_mapping()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::update_mapping ( const ::Triangulation< dim > &  tria,
const std::vector< std::pair< unsigned int, unsigned int > > &  cells,
const FaceInfo< VectorizedArrayType::size()> &  face_info,
const std::vector< unsigned int > &  active_fe_index,
const std::shared_ptr<::hp::MappingCollection< dim > > &  mapping 
)

Update the information in the given cells and faces that is the result of a change in the given mapping class, keeping the cells, quadrature formulas and other unknowns unchanged. This call is only valid if MappingInfo::initialize() has been called before.

◆ get_cell_type()

template<int dim, typename Number , typename VectorizedArrayType >
GeometryType internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::get_cell_type ( const unsigned int  cell_chunk_no) const
inline

Return the type of a given cell as detected during initialization.

Definition at line 304 of file mapping_info.h.

◆ clear()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::clear ( )

Clear all data fields in this class.

◆ memory_consumption()

template<int dim, typename Number , typename VectorizedArrayType >
std::size_t internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::memory_consumption ( ) const

Return the memory consumption of this class in bytes.

◆ print_memory_consumption()

template<int dim, typename Number , typename VectorizedArrayType >
template<typename StreamType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::print_memory_consumption ( StreamType &  out,
const TaskInfo &  task_info 
) const

Prints a detailed summary of memory consumption in the different structures of this class to the given output stream.

◆ compute_mapping_q()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::compute_mapping_q ( const ::Triangulation< dim > &  tria,
const std::vector< std::pair< unsigned int, unsigned int > > &  cells,
const FaceInfo< VectorizedArrayType::size()> &  face_info 
)

Internal function to compute the geometry for the case the mapping is a MappingQ and a single quadrature formula per slot (non-hp-case) is used. This method computes all data from the underlying cell quadrature points using the fast operator evaluation techniques from the matrix-free framework itself, i.e., it uses a polynomial description of the cell geometry (that is computed in a first step) and then computes all Jacobians and normal vectors based on this information. This optimized approach is much faster than going through FEValues and FEFaceValues, especially when several different quadrature formulas are involved, and consumes less memory.

Parameters
triaThe triangulation to be used for setup
cellsThe actual cells of the triangulation to be worked on, given as a tuple of the level and index within the level as used in the main initialization of the class
face_infoThe description of the connectivity from faces to cells as filled in the MatrixFree class

◆ initialize_cells()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::initialize_cells ( const ::Triangulation< dim > &  tria,
const std::vector< std::pair< unsigned int, unsigned int > > &  cells,
const std::vector< unsigned int > &  active_fe_index,
const ::hp::MappingCollection< dim > &  mapping 
)

Computes the information in the given cells, called within initialize.

◆ initialize_faces()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::initialize_faces ( const ::Triangulation< dim > &  tria,
const std::vector< std::pair< unsigned int, unsigned int > > &  cells,
const std::vector< FaceToCellTopology< VectorizedArrayType::size()> > &  faces,
const std::vector< unsigned int > &  active_fe_index,
const ::hp::MappingCollection< dim > &  mapping 
)

Computes the information in the given faces, called within initialize.

◆ initialize_faces_by_cells()

template<int dim, typename Number , typename VectorizedArrayType >
void internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::initialize_faces_by_cells ( const ::Triangulation< dim > &  tria,
const std::vector< std::pair< unsigned int, unsigned int > > &  cells,
const FaceInfo< VectorizedArrayType::size()> &  face_info,
const ::hp::MappingCollection< dim > &  mapping 
)

Computes the information in the given faces, called within initialize.

Member Data Documentation

◆ update_flags_cells

template<int dim, typename Number , typename VectorizedArrayType >
UpdateFlags internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::update_flags_cells

The given update flags for computing the geometry on the cells.

Definition at line 122 of file mapping_info.h.

◆ update_flags_boundary_faces

template<int dim, typename Number , typename VectorizedArrayType >
UpdateFlags internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::update_flags_boundary_faces

The given update flags for computing the geometry on the boundary faces.

Definition at line 128 of file mapping_info.h.

◆ update_flags_inner_faces

template<int dim, typename Number , typename VectorizedArrayType >
UpdateFlags internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::update_flags_inner_faces

The given update flags for computing the geometry on the interior faces.

Definition at line 134 of file mapping_info.h.

◆ update_flags_faces_by_cells

template<int dim, typename Number , typename VectorizedArrayType >
UpdateFlags internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::update_flags_faces_by_cells

The given update flags for computing the geometry on the faces for cell-centric loops.

Definition at line 140 of file mapping_info.h.

◆ cell_type

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<GeometryType> internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::cell_type

Stores whether a cell is Cartesian (cell type 0), has constant transform data (Jacobians) (cell type 1), or is general (cell type 3). Type 2 is only used for faces and no cells are assigned this value.

Definition at line 148 of file mapping_info.h.

◆ face_type

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<GeometryType> internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::face_type

Stores whether a face (and both cells adjacent to the face) is Cartesian (face type 0), whether it represents an affine situation (face type 1), whether it is a flat face where the normal vector is the same throughout the face (face type 2), or is general (face type 3).

Definition at line 157 of file mapping_info.h.

◆ faces_by_cells_type

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<std::array<GeometryType, GeometryInfo<dim>::faces_per_cell> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::faces_by_cells_type

Store whether the face geometry for the face_data_by_cells data structure is represented as Cartesian (cell type 0), with constant transform data (Jacobians) (cell type 1), or a general type (cell type 3). Note that both the interior and exterior agree on the type of the data structure, using the more general of the two.

Definition at line 167 of file mapping_info.h.

◆ cell_data

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<MappingInfoStorage<dim, dim, VectorizedArrayType> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::cell_data

The data cache for the cells.

Definition at line 172 of file mapping_info.h.

◆ face_data

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<MappingInfoStorage<dim - 1, dim, VectorizedArrayType> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::face_data

The data cache for the faces.

Definition at line 178 of file mapping_info.h.

◆ face_data_by_cells

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<MappingInfoStorage<dim - 1, dim, VectorizedArrayType> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::face_data_by_cells

The data cache for the face-associated-with-cell topology, following the cell_type variable for the cell types.

Definition at line 185 of file mapping_info.h.

◆ mapping_collection

template<int dim, typename Number , typename VectorizedArrayType >
std::shared_ptr<::hp::MappingCollection<dim> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::mapping_collection

The pointer to the underlying hp::MappingCollection object.

Definition at line 190 of file mapping_info.h.

◆ mapping

template<int dim, typename Number , typename VectorizedArrayType >
ObserverPointer<const Mapping<dim> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::mapping

The pointer to the first entry of mapping_collection.

Definition at line 195 of file mapping_info.h.

◆ reference_cell_types

template<int dim, typename Number , typename VectorizedArrayType >
std::vector<std::vector<ReferenceCell> > internal::MatrixFreeFunctions::MappingInfo< dim, Number, VectorizedArrayType >::reference_cell_types

Reference-cell type related to each quadrature and active quadrature index.

Definition at line 201 of file mapping_info.h.

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