LocalMeshData

class dolfin.cpp.mesh.LocalMeshData(*args)

Bases: dolfin.cpp.common.Variable

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.

Overloaded versions

• LocalMeshData(mpi_comm)

  Create empty local mesh data

• LocalMeshData(mesh)

  Create local mesh data for given mesh

broadcast_mesh_data()

check()

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

clear()

domain_data

extract_mesh_data()

geometry

mpi_comm()

receive_mesh_data()

reorder()

thisown

The membership flag

topology