LocalMeshData.h

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class LocalMeshData

Parent class(es)

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.

explicit LocalMeshData(const MPI_Comm mpi_comm)

Create empty local mesh data

explicit LocalMeshData(const Mesh &mesh)

Create local mesh data for given mesh

void check() const

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

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)

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

void receive_mesh_data(const MPI_Comm mpi_comm)

Receive mesh data from main process

void reorder()

Reorder cell data

Geometry()

Constructor

void clear()

Clear data

void unpack_vertex_coordinates(const std::vector<double> &values)

Unpack received vertex coordinates

Topology()

Constructor

void clear()

Clear data

void unpack_cell_vertices(const std::vector<std::int64_t> &values)

Unpack received cell vertices

MPI_Comm mpi_comm() const

Return MPI communicator