DMPlexCreateFromCellSectionParallel#

Create distributed DMPLEX from a list of vertices for each cell (common mesh generator output) and supports multiple celltypes

Synopsis#

#include "petscdmplex.h"   
#include "petscdmplextransform.h"   
PetscErrorCode DMPlexCreateFromCellSectionParallel(MPI_Comm comm, PetscInt dim, PetscInt numCells, PetscInt numVertices, PetscInt NVertices, PetscSection cellSection, PetscBool interpolate, const PetscInt cells[], PetscInt spaceDim, const PetscReal vertexCoords[], PetscSF *vertexSF, PetscInt **verticesAdj, DM *dm)

Collective

Input Parameters#

comm - The communicator
dim - The topological dimension of the mesh
numCells - The number of cells owned by this process
numVertices - The number of vertices owned by this process, or PETSC_DECIDE
NVertices - The global number of vertices, or PETSC_DECIDE
cellSection - The PetscSection giving the number of vertices for each cell (layout of cells)
interpolate - Flag indicating that intermediate mesh entities (faces, edges) should be created automatically
cells - An array of the global vertex numbers for each cell
spaceDim - The spatial dimension used for coordinates
vertexCoords - An array of numVertices*spaceDim numbers, the coordinates of each vertex

Output Parameters#

dm - The DM
vertexSF - (Optional) PetscSF describing complete vertex ownership
verticesAdj - (Optional) vertex adjacency array

Notes#

This function is just a convenient sequence of DMCreate(), DMSetType(), DMSetDimension(), DMPlexBuildFromCellSectionParallel(), DMPlexInterpolate(), DMPlexBuildCoordinatesFromCellListParallel()

See DMPlexBuildFromCellSectionParallel() for an example and details about the topology-related parameters.

See DMPlexBuildCoordinatesFromCellListParallel() for details about the geometry-related parameters.

Level#

intermediate

Location#

src/dm/impls/plex/plexcreate.c

Index of all DMPlex routines
Table of Contents for all manual pages
Index of all manual pages