This class stores mesh data on a local processor corresponding to a portion of a (larger) global mesh. More...

#include <LocalMeshData.h>

Inheritance diagram for dolfin::LocalMeshData:

Collaboration diagram for dolfin::LocalMeshData:

[legend]

Classes
struct	Geometry
	Holder for geometry data. More...

struct	Topology
	Holder for topology data. More...

Public Member Functions
	LocalMeshData (const MPI_Comm mpi_comm)
	Create empty local mesh data.

	LocalMeshData (const Mesh &mesh)
	Create local mesh data for given mesh.

	~LocalMeshData ()
	Destructor.

void	check () const

std::string	str (bool verbose) const
	Return informal string representation (pretty-print)

void	clear ()
	Clear all data.

void	extract_mesh_data (const Mesh &mesh)
	Copy data from mesh.

void	broadcast_mesh_data (const MPI_Comm mpi_comm)

void	receive_mesh_data (const MPI_Comm mpi_comm)
	Receive mesh data from main process.

void	reorder ()
	Reorder cell data.

MPI_Comm	mpi_comm () const
	Return MPI communicator.

Public Member Functions inherited from dolfin::Variable
	Variable ()
	Create unnamed variable.

	Variable (const std::string name, const std::string label)
	Create variable with given name and label.

	Variable (const Variable &variable)
	Copy constructor.

virtual	~Variable ()
	Destructor.

const Variable &	operator= (const Variable &variable)
	Assignment operator.

void	rename (const std::string name, const std::string label)
	Rename variable.

std::string	name () const
	Return name.

std::string	label () const
	Return label (description)

std::size_t	id () const

Public Attributes
Geometry	geometry
	Geometry data.

Topology	topology
	Holder for topology data.

std::map< std::size_t, std::vector< std::pair< std::pair< std::size_t, std::size_t >, std::size_t > > >	domain_data
	Mesh domain data [dim](line, (cell_index, local_index, value))

Public Attributes inherited from dolfin::Variable
Parameters	parameters
	Parameters.

Detailed Description

This class stores mesh data on a local processor corresponding to a portion of a (larger) global mesh.

Note that the data stored in this class does typically not correspond to a topologically connected mesh; it merely stores a list of vertex coordinates, a list of cell-vertex mappings and a list of global vertex numbers for the locally stored vertices.

It is typically used for parsing meshes in parallel from mesh XML files. After local mesh data has been parsed on each processor, a subsequent repartitioning takes place: first a geometric partitioning of the vertices followed by a redistribution of vertex and cell data, and then a topological partitioning again followed by redistribution of vertex and cell data, at that point corresponding to topologically connected meshes instead of local mesh data.

Member Function Documentation

◆ broadcast_mesh_data()

void LocalMeshData::broadcast_mesh_data ( const MPI_Comm mpi_comm )

Broadcast mesh data from main process (used when Mesh is created on one process)

◆ check()

void LocalMeshData::check ( ) const

Check that all essential data has been initialized, and throw error if there is a problem

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

/home/fenics/shared/dolfin/dolfin/mesh/LocalMeshData.h
/home/fenics/shared/dolfin/dolfin/mesh/LocalMeshData.cpp

Classes

Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation

◆ broadcast_mesh_data()

◆ check()