LocalMeshData¶
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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.
Create local mesh data for given mesh.
Parameters: Mesh & mesh (const) – -
broadcast_mesh_data
()¶ Broadcast mesh data from main process (used when
Mesh
is created on one process)Parameters: MPI_Comm mpi_comm (const) – Return type: void
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check
()¶ Check that all essential data has been initialized, and throw error if there is a problem
Return type: void
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clear
()¶ Clear all data.
Return type: void
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domain_data
¶ Mesh
domain data [dim](line, (cell_index, local_index, value))Return type: std::map< std::size_t, std::vector< std::pair< std::pair< std::size_t, std::size_t >, std::size_t > > >
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extract_mesh_data
()¶ Copy data from mesh.
Parameters: Mesh & mesh (const) – Return type: void
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geometry
¶ Geometry
data.Return type: Geometry
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receive_mesh_data
()¶ Receive mesh data from main process.
Parameters: MPI_Comm mpi_comm (const) – Return type: void
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reorder
()¶ Reorder cell data.
Return type: void
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thisown
¶ The membership flag
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topology
¶ Holder for topology data.
Return type: Topology
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