Class for parallel meshes. More...

#include <pmesh.hpp>

Inheritance diagram for mfem::ParMesh:

Collaboration diagram for mfem::ParMesh:

Classes
struct	Vert3

struct	Vert4

Public Member Functions
	ParMesh ()
	Default constructor. Create an empty ParMesh. More...

	ParMesh (MPI_Comm comm, Mesh &mesh, int *partitioning_=NULL, int part_method=1)
	Create a parallel mesh by partitioning a serial Mesh. More...

	ParMesh (const ParMesh &pmesh, bool copy_nodes=true)

	ParMesh (MPI_Comm comm, std::istream &input, bool refine=true)
	Read a parallel mesh, each MPI rank from its own file/stream. More...

MFEM_DEPRECATED	ParMesh (ParMesh *orig_mesh, int ref_factor, int ref_type)
	Deprecated: see ParMesh::MakeRefined. More...

	ParMesh (ParMesh &&mesh)
	Move constructor. Used for named constructors. More...

ParMesh &	operator= (ParMesh &&mesh)
	Move assignment operator. More...

ParMesh &	operator= (ParMesh &mesh)=delete
	Explicitly delete the copy assignment operator. More...

virtual void	Finalize (bool refine=false, bool fix_orientation=false)
	Finalize the construction of a general Mesh. More...

virtual void	SetAttributes ()

MPI_Comm	GetComm () const

int	GetNRanks () const

int	GetMyRank () const

int	GetLocalElementNum (long global_element_num) const

long	GetGlobalElementNum (int local_element_num) const
	Map a local element number to a global element number. More...

void	GetGlobalVertexIndices (Array< HYPRE_Int > &gi) const
	AMR meshes are not supported. More...

void	GetGlobalEdgeIndices (Array< HYPRE_Int > &gi) const
	AMR meshes are not supported. More...

void	GetGlobalFaceIndices (Array< HYPRE_Int > &gi) const
	AMR meshes are not supported. More...

void	GetGlobalElementIndices (Array< HYPRE_Int > &gi) const
	AMR meshes are supported. More...

int	GetNGroups () const

void	GenerateOffsets (int N, HYPRE_BigInt loc_sizes[], Array< HYPRE_BigInt > *offsets[]) const

void	ExchangeFaceNbrData ()

void	ExchangeFaceNbrNodes ()

virtual void	SetCurvature (int order, bool discont=false, int space_dim=-1, int ordering=1)

int	GetNFaceNeighbors () const

int	GetNFaceNeighborElements () const

int	GetFaceNbrGroup (int fn) const

int	GetFaceNbrRank (int fn) const

Table *	GetFaceToAllElementTable () const

FaceElementTransformations *	GetSharedFaceTransformations (int sf, bool fill2=true)

ElementTransformation *	GetFaceNbrElementTransformation (int i)

double	GetFaceNbrElementSize (int i, int type=0)

int	GetNSharedFaces () const
	Return the number of shared faces (3D), edges (2D), vertices (1D) More...

int	GetSharedFace (int sface) const
	Return the local face index for the given shared face. More...

virtual void	ReorientTetMesh ()
	See the remarks for the serial version in mesh.hpp. More...

virtual long	ReduceInt (int value) const
	Utility function: sum integers from all processors (Allreduce). More...

void	Rebalance ()

void	Rebalance (const Array< int > &partition)

void	ParPrint (std::ostream &out) const
	Save the mesh in a parallel mesh format. More...

virtual void	Print (std::ostream &out=mfem::out) const

virtual void	Save (const char *fname, int precision=16) const

virtual void	Print (adios2stream &out) const

virtual void	PrintXG (std::ostream &out=mfem::out) const

void	PrintAsOne (std::ostream &out=mfem::out) const

void	SaveAsOne (const char *fname, int precision=16) const

void	PrintAsOneXG (std::ostream &out=mfem::out)
	Old mesh format (Netgen/Truegrid) version of 'PrintAsOne'. More...

virtual void	PrintVTU (std::string pathname, VTKFormat format=VTKFormat::ASCII, bool high_order_output=false, int compression_level=0, bool bdr=false)

virtual void	Load (std::istream &input, int generate_edges=0, int refine=1, bool fix_orientation=true)
	Parallel version of Mesh::Load(). More...

void	GetBoundingBox (Vector &p_min, Vector &p_max, int ref=2)

void	GetCharacteristics (double &h_min, double &h_max, double &kappa_min, double &kappa_max)

void	Swap (ParMesh &other)

virtual void	PrintInfo (std::ostream &out=mfem::out)
	Print various parallel mesh stats. More...

virtual int	FindPoints (DenseMatrix &point_mat, Array< int > &elem_ids, Array< IntegrationPoint > &ips, bool warn=true, InverseElementTransformation *inv_trans=NULL)
	Find the ids of the elements that contain the given points, and their corresponding reference coordinates. More...

void	PrintSharedEntities (const char *fname_prefix) const
	Debugging method. More...

virtual	~ParMesh ()

These methods require group > 0
int	GroupNVertices (int group)

int	GroupNEdges (int group)

int	GroupNTriangles (int group)

int	GroupNQuadrilaterals (int group)

int	GroupVertex (int group, int i)

void	GroupEdge (int group, int i, int &edge, int &o)

void	GroupTriangle (int group, int i, int &face, int &o)

void	GroupQuadrilateral (int group, int i, int &face, int &o)

Public Member Functions inherited from mfem::Mesh
	Mesh ()

	Mesh (const Mesh &mesh, bool copy_nodes=true)

	Mesh (Mesh &&mesh)
	Move constructor, useful for using a Mesh as a function return value. More...

Mesh &	operator= (Mesh &&mesh)
	Move assignment operstor. More...

Mesh &	operator= (Mesh &mesh)=delete
	Explicitly delete the copy assignment operator. More...

std::vector< int >	CreatePeriodicVertexMapping (const std::vector< Vector > &translations, double tol=1e-8) const
	Creates a mapping v2v from the vertex indices of the mesh such that coincident vertices under the given translations are identified. More...

	Mesh (double vertices, int num_vertices, int element_indices, Geometry::Type element_type, int element_attributes, int num_elements, int boundary_indices, Geometry::Type boundary_type, int *boundary_attributes, int num_boundary_elements, int dimension, int space_dimension=-1)
	Construct a Mesh from the given primary data. More...

	Mesh (int Dim_, int NVert, int NElem, int NBdrElem=0, int spaceDim_=-1)
	Init constructor: begin the construction of a Mesh object. More...

void	FinalizeTopology (bool generate_bdr=true)
	Finalize the construction of the secondary topology (connectivity) data of a Mesh. More...

double	GetGeckoElementOrdering (Array< int > &ordering, int iterations=4, int window=4, int period=2, int seed=0, bool verbose=false, double time_limit=0)

void	GetHilbertElementOrdering (Array< int > &ordering)

void	ReorderElements (const Array< int > &ordering, bool reorder_vertices=true)

MFEM_DEPRECATED	Mesh (int nx, int ny, int nz, Element::Type type, bool generate_edges=false, double sx=1.0, double sy=1.0, double sz=1.0, bool sfc_ordering=true)
	Deprecated: see MakeCartesian3D. More...

MFEM_DEPRECATED	Mesh (int nx, int ny, Element::Type type, bool generate_edges=false, double sx=1.0, double sy=1.0, bool sfc_ordering=true)
	Deprecated: see MakeCartesian2D. More...

MFEM_DEPRECATED	Mesh (int n, double sx=1.0)
	Deprecated: see MakeCartesian1D. More...

	Mesh (const char *filename, int generate_edges=0, int refine=1, bool fix_orientation=true)

	Mesh (std::istream &input, int generate_edges=0, int refine=1, bool fix_orientation=true)

	Mesh (Mesh *mesh_array[], int num_pieces)
	Create a disjoint mesh from the given mesh array. More...

MFEM_DEPRECATED	Mesh (Mesh *orig_mesh, int ref_factor, int ref_type)
	Deprecated: see MakeRefined. More...

void	Clear ()
	Clear the contents of the Mesh. More...

int	MeshGenerator ()
	Get the mesh generator/type. More...

int	GetNV () const
	Returns number of vertices. Vertices are only at the corners of elements, where you would expect them in the lowest-order mesh. More...

int	GetNE () const
	Returns number of elements. More...

int	GetNBE () const
	Returns number of boundary elements. More...

int	GetNEdges () const
	Return the number of edges. More...

int	GetNFaces () const
	Return the number of faces in a 3D mesh. More...

int	GetNumFaces () const
	Return the number of faces (3D), edges (2D) or vertices (1D). More...

int	GetNFbyType (FaceType type) const
	Returns the number of faces according to the requested type. More...

long	GetGlobalNE () const
	Return the total (global) number of elements. More...

const GeometricFactors *	GetGeometricFactors (const IntegrationRule &ir, const int flags, MemoryType d_mt=MemoryType::DEFAULT)
	Return the mesh geometric factors corresponding to the given integration rule. More...

const FaceGeometricFactors *	GetFaceGeometricFactors (const IntegrationRule &ir, const int flags, FaceType type)
	Return the mesh geometric factors for the faces corresponding to the given integration rule. More...

void	DeleteGeometricFactors ()
	Destroy all GeometricFactors stored by the Mesh. More...

int	EulerNumber () const
	Equals 1 + num_holes - num_loops. More...

int	EulerNumber2D () const
	Equals 1 - num_holes. More...

int	Dimension () const

int	SpaceDimension () const

const double *	GetVertex (int i) const
	Return pointer to vertex i's coordinates. More...

double *	GetVertex (int i)
	Return pointer to vertex i's coordinates. More...

void	GetElementData (int geom, Array< int > &elem_vtx, Array< int > &attr) const

void	GetBdrElementData (int geom, Array< int > &bdr_elem_vtx, Array< int > &bdr_attr) const

void	ChangeVertexDataOwnership (double *vertices, int len_vertices, bool zerocopy=false)
	Set the internal Vertex array to point to the given vertices array without assuming ownership of the pointer. More...

const Element const	GetElementsArray () const

const Element *	GetElement (int i) const

Element *	GetElement (int i)

const Element *	GetBdrElement (int i) const

Element *	GetBdrElement (int i)

const Element *	GetFace (int i) const

Geometry::Type	GetFaceGeometry (int i) const

Geometry::Type	GetElementGeometry (int i) const

Geometry::Type	GetBdrElementGeometry (int i) const

Geometry::Type	GetFaceBaseGeometry (int i) const

Geometry::Type	GetElementBaseGeometry (int i) const

Geometry::Type	GetBdrElementBaseGeometry (int i) const

bool	HasGeometry (Geometry::Type geom) const
	Return true iff the given geom is encountered in the mesh. Geometries of dimensions lower than Dimension() are counted as well. More...

int	GetNumGeometries (int dim) const
	Return the number of geometries of the given dimension present in the mesh. More...

void	GetGeometries (int dim, Array< Geometry::Type > &el_geoms) const
	Return all element geometries of the given dimension present in the mesh. More...

void	GetElementVertices (int i, Array< int > &v) const
	Returns the indices of the vertices of element i. More...

void	GetBdrElementVertices (int i, Array< int > &v) const
	Returns the indices of the vertices of boundary element i. More...

void	GetElementEdges (int i, Array< int > &edges, Array< int > &cor) const
	Return the indices and the orientations of all edges of element i. More...

void	GetBdrElementEdges (int i, Array< int > &edges, Array< int > &cor) const
	Return the indices and the orientations of all edges of bdr element i. More...

void	GetFaceEdges (int i, Array< int > &edges, Array< int > &o) const

void	GetFaceVertices (int i, Array< int > &vert) const
	Returns the indices of the vertices of face i. More...

void	GetEdgeVertices (int i, Array< int > &vert) const
	Returns the indices of the vertices of edge i. More...

Table *	GetFaceEdgeTable () const
	Returns the face-to-edge Table (3D) More...

Table *	GetEdgeVertexTable () const
	Returns the edge-to-vertex Table (3D) More...

void	GetElementFaces (int i, Array< int > &faces, Array< int > &ori) const
	Return the indices and the orientations of all faces of element i. More...

void	GetBdrElementFace (int i, int f, int o) const
	Return the index and the orientation of the face of bdr element i. (3D) More...

int	GetBdrElementEdgeIndex (int i) const

void	GetBdrElementAdjacentElement (int bdr_el, int &el, int &info) const
	For the given boundary element, bdr_el, return its adjacent element and its info, i.e. 64*local_bdr_index+bdr_orientation. More...

Element::Type	GetElementType (int i) const
	Returns the type of element i. More...

Element::Type	GetBdrElementType (int i) const
	Returns the type of boundary element i. More...

void	GetPointMatrix (int i, DenseMatrix &pointmat) const

void	GetBdrPointMatrix (int i, DenseMatrix &pointmat) const

void	GetElementTransformation (int i, IsoparametricTransformation *ElTr)

ElementTransformation *	GetElementTransformation (int i)
	Returns the transformation defining the i-th element. More...

void	GetElementTransformation (int i, const Vector &nodes, IsoparametricTransformation *ElTr)

ElementTransformation *	GetBdrElementTransformation (int i)
	Returns the transformation defining the i-th boundary element. More...

void	GetBdrElementTransformation (int i, IsoparametricTransformation *ElTr)

void	GetFaceTransformation (int i, IsoparametricTransformation *FTr)
	Returns the transformation defining the given face element in a user-defined variable. More...

void	GetLocalFaceTransformation (int face_type, int elem_type, IsoparametricTransformation &Transf, int info)
	A helper method that constructs a transformation from the reference space of a face to the reference space of an element. More...

ElementTransformation *	GetFaceTransformation (int FaceNo)
	Returns the transformation defining the given face element. More...

void	GetEdgeTransformation (int i, IsoparametricTransformation *EdTr)

ElementTransformation *	GetEdgeTransformation (int EdgeNo)
	Returns the transformation defining the given face element. More...

FaceElementTransformations *	GetFaceElementTransformations (int FaceNo, int mask=31)

FaceElementTransformations *	GetInteriorFaceTransformations (int FaceNo)

FaceElementTransformations *	GetBdrFaceTransformations (int BdrElemNo)

int	GetBdrFace (int BdrElemNo) const
	Return the local face index for the given boundary face. More...

bool	FaceIsInterior (int FaceNo) const
	Return true if the given face is interior. More...

void	GetFaceElements (int Face, int Elem1, int Elem2) const

void	GetFaceInfos (int Face, int Inf1, int Inf2) const

void	GetFaceInfos (int Face, int Inf1, int Inf2, int *NCFace) const

Geometry::Type	GetFaceGeometryType (int Face) const

Element::Type	GetFaceElementType (int Face) const

int	CheckElementOrientation (bool fix_it=true)
	Check (and optionally attempt to fix) the orientation of the elements. More...

int	CheckBdrElementOrientation (bool fix_it=true)
	Check the orientation of the boundary elements. More...

int	GetAttribute (int i) const
	Return the attribute of element i. More...

void	SetAttribute (int i, int attr)
	Set the attribute of element i. More...

int	GetBdrAttribute (int i) const
	Return the attribute of boundary element i. More...

void	SetBdrAttribute (int i, int attr)
	Set the attribute of boundary element i. More...

const Table &	ElementToElementTable ()

const Table &	ElementToFaceTable () const

const Table &	ElementToEdgeTable () const

Table *	GetVertexToElementTable ()
	The returned Table must be destroyed by the caller. More...

Table *	GetFaceToElementTable () const

int *	CartesianPartitioning (int nxyz[])

int *	GeneratePartitioning (int nparts, int part_method=1)

void	CheckPartitioning (int *partitioning_)

void	CheckDisplacements (const Vector &displacements, double &tmax)

void	MoveVertices (const Vector &displacements)

void	GetVertices (Vector &vert_coord) const

void	SetVertices (const Vector &vert_coord)

void	GetNode (int i, double *coord) const

void	SetNode (int i, const double *coord)

void	MoveNodes (const Vector &displacements)

void	GetNodes (Vector &node_coord) const

void	SetNodes (const Vector &node_coord)

GridFunction *	GetNodes ()
	Return a pointer to the internal node GridFunction (may be NULL). More...

const GridFunction *	GetNodes () const

bool	OwnsNodes () const
	Return the mesh nodes ownership flag. More...

void	SetNodesOwner (bool nodes_owner)
	Set the mesh nodes ownership flag. More...

void	NewNodes (GridFunction &nodes, bool make_owner=false)
	Replace the internal node GridFunction with the given GridFunction. More...

void	SwapNodes (GridFunction *&nodes, int &own_nodes_)

void	GetNodes (GridFunction &nodes) const
	Return the mesh nodes/vertices projected on the given GridFunction. More...

void	SetNodalFESpace (FiniteElementSpace *nfes)

void	SetNodalGridFunction (GridFunction *nodes, bool make_owner=false)

const FiniteElementSpace *	GetNodalFESpace () const

void	EnsureNodes ()

void	UniformRefinement (int ref_algo=0)
	Refine all mesh elements. More...

void	GeneralRefinement (const Array< Refinement > &refinements, int nonconforming=-1, int nc_limit=0)

void	GeneralRefinement (const Array< int > &el_to_refine, int nonconforming=-1, int nc_limit=0)

void	RandomRefinement (double prob, bool aniso=false, int nonconforming=-1, int nc_limit=0)
	Refine each element with given probability. Uses GeneralRefinement. More...

void	RefineAtVertex (const Vertex &vert, double eps=0.0, int nonconforming=-1)
	Refine elements sharing the specified vertex. Uses GeneralRefinement. More...

bool	RefineByError (const Array< double > &elem_error, double threshold, int nonconforming=-1, int nc_limit=0)

bool	RefineByError (const Vector &elem_error, double threshold, int nonconforming=-1, int nc_limit=0)

bool	DerefineByError (Array< double > &elem_error, double threshold, int nc_limit=0, int op=1)

bool	DerefineByError (const Vector &elem_error, double threshold, int nc_limit=0, int op=1)
	Same as DerefineByError for an error vector. More...

void	EnsureNCMesh (bool simplices_nonconforming=false)

bool	Conforming () const

bool	Nonconforming () const

const CoarseFineTransformations &	GetRefinementTransforms ()

Operation	GetLastOperation () const
	Return type of last modification of the mesh. More...

long	GetSequence () const

void	PrintVTK (std::ostream &out)

void	PrintVTK (std::ostream &out, int ref, int field_data=0)

void	PrintVTU (std::ostream &out, int ref=1, VTKFormat format=VTKFormat::ASCII, bool high_order_output=false, int compression_level=0, bool bdr_elements=false)

void	PrintBdrVTU (std::string fname, VTKFormat format=VTKFormat::ASCII, bool high_order_output=false, int compression_level=0)

void	GetElementColoring (Array< int > &colors, int el0=0)

void	PrintWithPartitioning (int *partitioning, std::ostream &out, int elem_attr=0) const
	Prints the mesh with boundary elements given by the boundary of the subdomains, so that the boundary of subdomain i has boundary attribute i+1. More...

void	PrintElementsWithPartitioning (int *partitioning, std::ostream &out, int interior_faces=0)

void	PrintSurfaces (const Table &Aface_face, std::ostream &out) const
	Print set of disjoint surfaces: More...

void	ScaleSubdomains (double sf)

void	ScaleElements (double sf)

void	Transform (void(*f)(const Vector &, Vector &))

void	Transform (VectorCoefficient &deformation)

void	RemoveUnusedVertices ()
	Remove unused vertices and rebuild mesh connectivity. More...

void	RemoveInternalBoundaries ()

double	GetElementSize (int i, int type=0)
	Get the size of the i-th element relative to the perfect reference element. More...

double	GetElementSize (int i, const Vector &dir)

double	GetElementVolume (int i)

void	GetElementCenter (int i, Vector &center)

void	GetBoundingBox (Vector &min, Vector &max, int ref=2)
	Returns the minimum and maximum corners of the mesh bounding box. More...

void	GetCharacteristics (double &h_min, double &h_max, double &kappa_min, double &kappa_max, Vector Vh=NULL, Vector Vk=NULL)

void	PrintCharacteristics (Vector Vh=NULL, Vector Vk=NULL, std::ostream &out=mfem::out)
	Compute and print mesh characteristics such as number of vertices, number of elements, number of boundary elements, minimal and maximal element sizes, minimal and maximal element aspect ratios, etc. More...

void	MesquiteSmooth (const int mesquite_option=0)

void	Swap (Mesh &other, bool non_geometry)

virtual	~Mesh ()
	Destroys Mesh. More...

void	DebugDump (std::ostream &out) const
	Output an NCMesh-compatible debug dump. More...

Element *	NewElement (int geom)

int	AddVertex (double x, double y=0.0, double z=0.0)

int	AddVertex (const double *coords)

void	AddVertexParents (int i, int p1, int p2)
	Mark vertex i as non-conforming, with parent vertices p1 and p2. More...

int	AddSegment (int v1, int v2, int attr=1)

int	AddSegment (const int *vi, int attr=1)

int	AddTriangle (int v1, int v2, int v3, int attr=1)

int	AddTriangle (const int *vi, int attr=1)

int	AddTri (const int *vi, int attr=1)

int	AddQuad (int v1, int v2, int v3, int v4, int attr=1)

int	AddQuad (const int *vi, int attr=1)

int	AddTet (int v1, int v2, int v3, int v4, int attr=1)

int	AddTet (const int *vi, int attr=1)

int	AddWedge (int v1, int v2, int v3, int v4, int v5, int v6, int attr=1)

int	AddWedge (const int *vi, int attr=1)

int	AddHex (int v1, int v2, int v3, int v4, int v5, int v6, int v7, int v8, int attr=1)

int	AddHex (const int *vi, int attr=1)

void	AddHexAsTets (const int *vi, int attr=1)

void	AddHexAsWedges (const int *vi, int attr=1)

int	AddElement (Element *elem)
	The parameter elem should be allocated using the NewElement() method. More...

int	AddBdrElement (Element *elem)

int	AddBdrSegment (int v1, int v2, int attr=1)

int	AddBdrSegment (const int *vi, int attr=1)

int	AddBdrTriangle (int v1, int v2, int v3, int attr=1)

int	AddBdrTriangle (const int *vi, int attr=1)

int	AddBdrQuad (int v1, int v2, int v3, int v4, int attr=1)

int	AddBdrQuad (const int *vi, int attr=1)

void	AddBdrQuadAsTriangles (const int *vi, int attr=1)

int	AddBdrPoint (int v, int attr=1)

void	GenerateBoundaryElements ()

void	FinalizeTriMesh (int generate_edges=0, int refine=0, bool fix_orientation=true)
	Finalize the construction of a triangular Mesh. More...

void	FinalizeQuadMesh (int generate_edges=0, int refine=0, bool fix_orientation=true)
	Finalize the construction of a quadrilateral Mesh. More...

void	FinalizeTetMesh (int generate_edges=0, int refine=0, bool fix_orientation=true)
	Finalize the construction of a tetrahedral Mesh. More...

void	FinalizeWedgeMesh (int generate_edges=0, int refine=0, bool fix_orientation=true)
	Finalize the construction of a wedge Mesh. More...

void	FinalizeHexMesh (int generate_edges=0, int refine=0, bool fix_orientation=true)
	Finalize the construction of a hexahedral Mesh. More...

void	FinalizeMesh (int refine=0, bool fix_orientation=true)
	Finalize the construction of any type of Mesh. More...

void	KnotInsert (Array< KnotVector * > &kv)

void	KnotInsert (Array< Vector * > &kv)

void	DegreeElevate (int rel_degree, int degree=16)

Static Public Member Functions
static ParMesh	MakeRefined (ParMesh &orig_mesh, int ref_factor, int ref_type)
	Create a uniformly refined (by any factor) version of orig_mesh. More...

static ParMesh	MakeSimplicial (ParMesh &orig_mesh)

Static Public Member Functions inherited from mfem::Mesh
static FiniteElement *	GetTransformationFEforElementType (Element::Type)

static void	PrintElementsByGeometry (int dim, const Array< int > &num_elems_by_geom, std::ostream &out)
	Auxiliary method used by PrintCharacteristics(). More...

static Mesh	LoadFromFile (const char *filename, int generate_edges=0, int refine=1, bool fix_orientation=true)

static Mesh	MakeCartesian1D (int n, double sx=1.0)

static Mesh	MakeCartesian2D (int nx, int ny, Element::Type type, bool generate_edges=false, double sx=1.0, double sy=1.0, bool sfc_ordering=true)

static Mesh	MakeCartesian3D (int nx, int ny, int nz, Element::Type type, double sx=1.0, double sy=1.0, double sz=1.0, bool sfc_ordering=true)

static Mesh	MakeRefined (Mesh &orig_mesh, int ref_factor, int ref_type)
	Create a refined (by any factor) version of orig_mesh. More...

static Mesh	MakeRefined (Mesh &orig_mesh, const Array< int > &ref_factors, int ref_type)
	refined ref_factors[i] times in each dimension. More...

static Mesh	MakeSimplicial (const Mesh &orig_mesh)

static Mesh	MakePeriodic (const Mesh &orig_mesh, const std::vector< int > &v2v)
	Create a periodic mesh by identifying vertices of orig_mesh. More...

Public Attributes
GroupTopology	gtopo

bool	have_face_nbr_data

Array< int >	face_nbr_group

Array< int >	face_nbr_elements_offset

Array< int >	face_nbr_vertices_offset

Array< Element * >	face_nbr_elements

Array< Vertex >	face_nbr_vertices

Table	send_face_nbr_elements

Table	send_face_nbr_vertices

ParNCMesh *	pncmesh

Public Attributes inherited from mfem::Mesh
Array< int >	attributes
	A list of all unique element attributes used by the Mesh. More...

Array< int >	bdr_attributes
	A list of all unique boundary attributes used by the Mesh. More...

NURBSExtension *	NURBSext
	Optional NURBS mesh extension. More...

NCMesh *	ncmesh
	Optional non-conforming mesh extension. More...

Array< GeometricFactors * >	geom_factors
	Optional geometric factors. More...

Array< FaceGeometricFactors * >	face_geom_factors
	Optional face geometric factors. More...

Protected Member Functions
void	ComputeGlobalElementOffset () const

	ParMesh (const ParNCMesh &pncmesh)
	Create from a nonconforming mesh. More...

void	ReduceMeshGen ()

void	FinalizeParTopo ()

virtual void	MarkTetMeshForRefinement (DSTable &v_to_v)

int	GetEdgeSplittings (Element edge, const DSTable &v_to_v, int middle)
	Return a number(0-1) identifying how the given edge has been split. More...

void	GetFaceSplittings (const int *fv, const HashTable< Hashed2 > &v_to_v, Array< unsigned > &codes)
	Append codes identifying how the given face has been split to codes. More...

bool	DecodeFaceSplittings (HashTable< Hashed2 > &v_to_v, const int *v, const Array< unsigned > &codes, int &pos)

void	GetFaceNbrElementTransformation (int i, IsoparametricTransformation *ElTr)

void	GetGhostFaceTransformation (FaceElementTransformations *FETr, Element::Type face_type, Geometry::Type face_geom)

void	RefineGroups (const DSTable &v_to_v, int *middle)
	Update the groups after triangle refinement. More...

void	RefineGroups (int old_nv, const HashTable< Hashed2 > &v_to_v)
	Update the groups after tetrahedron refinement. More...

void	UniformRefineGroups2D (int old_nv)

void	UniformRefineGroups3D (int old_nv, int old_nedges, const DSTable &old_v_to_v, const STable3D &old_faces, Array< int > *f2qf)

void	ExchangeFaceNbrData (Table gr_sface, int s2l_face)

virtual void	UniformRefinement2D ()
	Refine a mixed 2D mesh uniformly. More...

virtual void	UniformRefinement3D ()
	Refine a mixed 3D mesh uniformly. More...

virtual void	NURBSUniformRefinement ()
	Refine NURBS mesh. More...

virtual void	LocalRefinement (const Array< int > &marked_el, int type=3)
	This function is not public anymore. Use GeneralRefinement instead. More...

virtual void	NonconformingRefinement (const Array< Refinement > &refinements, int nc_limit=0)
	This function is not public anymore. Use GeneralRefinement instead. More...

virtual bool	NonconformingDerefinement (Array< double > &elem_error, double threshold, int nc_limit=0, int op=1)
	NC version of GeneralDerefinement. More...

void	RebalanceImpl (const Array< int > *partition)

void	DeleteFaceNbrData ()

bool	WantSkipSharedMaster (const NCMesh::Master &master) const

int	BuildLocalVertices (const Mesh &global_mesh, const int *partitioning, Array< int > &vert_global_local)
	Fills out partitioned Mesh::vertices. More...

int	BuildLocalElements (const Mesh &global_mesh, const int *partitioning, const Array< int > &vert_global_local)
	Fills out partitioned Mesh::elements. More...

int	BuildLocalBoundary (const Mesh &global_mesh, const int partitioning, const Array< int > &vert_global_local, Array< bool > &activeBdrElem, Table &edge_element)
	Fills out partitioned Mesh::boundary. More...

void	FindSharedFaces (const Mesh &mesh, const int *partition, Array< int > &face_group, ListOfIntegerSets &groups)

int	FindSharedEdges (const Mesh &mesh, const int partition, Table &edge_element, ListOfIntegerSets &groups)

int	FindSharedVertices (const int partition, Table vertex_element, ListOfIntegerSets &groups)

void	BuildFaceGroup (int ngroups, const Mesh &mesh, const Array< int > &face_group, int &nstria, int &nsquad)

void	BuildEdgeGroup (int ngroups, const Table &edge_element)

void	BuildVertexGroup (int ngroups, const Table &vert_element)

void	BuildSharedFaceElems (int ntri_faces, int nquad_faces, const Mesh &mesh, int partitioning, const STable3D faces_tbl, const Array< int > &face_group, const Array< int > &vert_global_local)

void	BuildSharedEdgeElems (int nedges, Mesh &mesh, const Array< int > &vert_global_local, const Table *edge_element)

void	BuildSharedVertMapping (int nvert, const Table *vert_element, const Array< int > &vert_global_local)

void	DistributeAttributes (Array< int > &attr)
	Ensure that bdr_attributes and attributes agree across processors. More...

void	LoadSharedEntities (std::istream &input)

void	EnsureParNodes ()
	If the mesh is curved, make sure 'Nodes' is ParGridFunction. More...

void	MakeRefined_ (ParMesh &orig_mesh, int ref_factor, int ref_type)
	Internal function used in ParMesh::MakeRefined (and related constructor) More...

void	Destroy ()

Protected Member Functions inherited from mfem::Mesh
void	Init ()

void	InitTables ()

void	SetEmpty ()

void	DestroyTables ()

void	DeleteTables ()

void	DestroyPointers ()

void	Destroy ()

void	ResetLazyData ()

Element *	ReadElementWithoutAttr (std::istream &)

Element *	ReadElement (std::istream &)

void	ReadMFEMMesh (std::istream &input, int version, int &curved)

void	ReadLineMesh (std::istream &input)

void	ReadNetgen2DMesh (std::istream &input, int &curved)

void	ReadNetgen3DMesh (std::istream &input)

void	ReadTrueGridMesh (std::istream &input)

void	CreateVTKMesh (const Vector &points, const Array< int > &cell_data, const Array< int > &cell_offsets, const Array< int > &cell_types, const Array< int > &cell_attributes, int &curved, int &read_gf, bool &finalize_topo)

void	ReadVTKMesh (std::istream &input, int &curved, int &read_gf, bool &finalize_topo)

void	ReadXML_VTKMesh (std::istream &input, int &curved, int &read_gf, bool &finalize_topo, const std::string &xml_prefix="")

void	ReadNURBSMesh (std::istream &input, int &curved, int &read_gf)

void	ReadInlineMesh (std::istream &input, bool generate_edges=false)

void	ReadGmshMesh (std::istream &input, int &curved, int &read_gf)

void	ReadCubit (const char *filename, int &curved, int &read_gf)

void	SetMeshGen ()
	Determine the mesh generator bitmask meshgen, see MeshGenerator(). More...

double	GetLength (int i, int j) const
	Return the length of the segment from node i to node j. More...

void	GetElementJacobian (int i, DenseMatrix &J)

void	MarkForRefinement ()

void	MarkTriMeshForRefinement ()

void	GetEdgeOrdering (DSTable &v_to_v, Array< int > &order)

void	PrepareNodeReorder (DSTable old_v_to_v, Table old_elem_vert)

void	DoNodeReorder (DSTable old_v_to_v, Table old_elem_vert)

STable3D *	GetFacesTable ()

STable3D *	GetElementToFaceTable (int ret_ftbl=0)

void	RedRefinement (int i, const DSTable &v_to_v, int edge1, int edge2, int *middle)

void	GreenRefinement (int i, const DSTable &v_to_v, int edge1, int edge2, int *middle)

void	Bisection (int i, const DSTable &, int , int , int *)
	Bisect a triangle: element with index i is bisected. More...

void	Bisection (int i, HashTable< Hashed2 > &)
	Bisect a tetrahedron: element with index i is bisected. More...

void	BdrBisection (int i, const HashTable< Hashed2 > &)
	Bisect a boundary triangle: boundary element with index i is bisected. More...

void	UniformRefinement (int i, const DSTable &, int , int , int *)

void	AverageVertices (const int *indexes, int n, int result)
	Averages the vertices with given indexes and saves the result in vertices[result]. More...

void	InitRefinementTransforms ()

int	FindCoarseElement (int i)

void	UpdateNodes ()
	Update the nodes of a curved mesh after refinement. More...

void	SetVerticesFromNodes (const GridFunction *nodes)
	Helper to set vertex coordinates given a high-order curvature function. More...

void	UniformRefinement2D_base (bool update_nodes=true)

void	UniformRefinement3D_base (Array< int > f2qf=NULL, DSTable v_to_v_p=NULL, bool update_nodes=true)

double	AggregateError (const Array< double > &elem_error, const int *fine, int nfine, int op)
	Derefinement helper. More...

void	LoadPatchTopo (std::istream &input, Array< int > &edge_to_knot)
	Read NURBS patch/macro-element mesh. More...

void	UpdateNURBS ()

void	PrintTopo (std::ostream &out, const Array< int > &e_to_k) const

void	GetLocalPtToSegTransformation (IsoparametricTransformation &, int)
	Used in GetFaceElementTransformations (...) More...

void	GetLocalSegToTriTransformation (IsoparametricTransformation &loc, int i)

void	GetLocalSegToQuadTransformation (IsoparametricTransformation &loc, int i)

void	GetLocalTriToTetTransformation (IsoparametricTransformation &loc, int i)
	Used in GetFaceElementTransformations (...) More...

void	GetLocalTriToWdgTransformation (IsoparametricTransformation &loc, int i)
	Used in GetFaceElementTransformations (...) More...

void	GetLocalQuadToHexTransformation (IsoparametricTransformation &loc, int i)
	Used in GetFaceElementTransformations (...) More...

void	GetLocalQuadToWdgTransformation (IsoparametricTransformation &loc, int i)
	Used in GetFaceElementTransformations (...) More...

void	ApplyLocalSlaveTransformation (FaceElementTransformations &FT, const FaceInfo &fi, bool is_ghost)

bool	IsSlaveFace (const FaceInfo &fi) const

void	GetVertexToVertexTable (DSTable &) const

int	GetElementToEdgeTable (Table &, Array< int > &)

void	AddPointFaceElement (int lf, int gf, int el)
	Used in GenerateFaces() More...

void	AddSegmentFaceElement (int lf, int gf, int el, int v0, int v1)

void	AddTriangleFaceElement (int lf, int gf, int el, int v0, int v1, int v2)

void	AddQuadFaceElement (int lf, int gf, int el, int v0, int v1, int v2, int v3)

bool	FaceIsTrueInterior (int FaceNo) const

void	FreeElement (Element *E)

void	GenerateFaces ()

void	GenerateNCFaceInfo ()

void	InitMesh (int Dim_, int spaceDim_, int NVert, int NElem, int NBdrElem)
	Begin construction of a mesh. More...

void	FinalizeCheck ()

void	Loader (std::istream &input, int generate_edges=0, std::string parse_tag="")

void	Printer (std::ostream &out=mfem::out, std::string section_delimiter="") const

void	Make3D (int nx, int ny, int nz, Element::Type type, double sx, double sy, double sz, bool sfc_ordering)

void	Make2D (int nx, int ny, Element::Type type, double sx, double sy, bool generate_edges, bool sfc_ordering)

void	Make1D (int n, double sx=1.0)
	Creates a 1D mesh for the interval [0,sx] divided into n equal intervals. More...

void	MakeRefined_ (Mesh &orig_mesh, const Array< int > ref_factors, int ref_type)
	Internal function used in Mesh::MakeRefined. More...

void	InitFromNCMesh (const NCMesh &ncmesh)
	Initialize vertices/elements/boundary/tables from a nonconforming mesh. More...

	Mesh (const NCMesh &ncmesh)
	Create from a nonconforming mesh. More...

void	GetElementData (const Array< Element * > &elem_array, int geom, Array< int > &elem_vtx, Array< int > &attr) const

double	GetElementSize (ElementTransformation *T, int type=0)

void	MakeSimplicial_ (const Mesh &orig_mesh, int *vglobal)

Protected Attributes
MPI_Comm	MyComm

int	NRanks

int	MyRank

Array< Element * >	shared_edges

Array< Vert3 >	shared_trias

Array< Vert4 >	shared_quads

Table	group_svert
	Shared objects in each group. More...

Table	group_sedge

Table	group_stria

Table	group_squad

Array< int >	svert_lvert
	Shared to local index mapping. More...

Array< int >	sedge_ledge

Array< int >	sface_lface

IsoparametricTransformation	FaceNbrTransformation

long	glob_elem_offset

long	glob_offset_sequence

Protected Attributes inherited from mfem::Mesh
int	Dim

int	spaceDim

int	NumOfVertices

int	NumOfElements

int	NumOfBdrElements

int	NumOfEdges

int	NumOfFaces

int	nbInteriorFaces

int	nbBoundaryFaces

int	meshgen

int	mesh_geoms

long	sequence

Array< Element * >	elements

Array< Vertex >	vertices

Array< Element * >	boundary

Array< Element * >	faces

Array< FaceInfo >	faces_info

Array< NCFaceInfo >	nc_faces_info

Table *	el_to_edge

Table *	el_to_face

Table *	el_to_el

Array< int >	be_to_edge

Table *	bel_to_edge

Array< int >	be_to_face

Table *	face_edge

Table *	edge_vertex

IsoparametricTransformation	Transformation

IsoparametricTransformation	Transformation2

IsoparametricTransformation	BdrTransformation

IsoparametricTransformation	FaceTransformation

IsoparametricTransformation	EdgeTransformation

FaceElementTransformations	FaceElemTr

CoarseFineTransformations	CoarseFineTr

GridFunction *	Nodes

int	own_nodes

MemAlloc< Tetrahedron, 1024 >	TetMemory

Array< Triple< int, int, int > >	tmp_vertex_parents

Operation	last_operation

Friends
class	ParNCMesh

class	ParPumiMesh

class	adios2stream

Additional Inherited Members
Public Types inherited from mfem::Mesh
enum	Operation { NONE, REFINE, DEREFINE, REBALANCE }

typedef Geometry::Constants < Geometry::SEGMENT >	seg_t

typedef Geometry::Constants < Geometry::TRIANGLE >	tri_t

typedef Geometry::Constants < Geometry::SQUARE >	quad_t

typedef Geometry::Constants < Geometry::TETRAHEDRON >	tet_t

typedef Geometry::Constants < Geometry::CUBE >	hex_t

typedef Geometry::Constants < Geometry::PRISM >	pri_t

Static Public Attributes inherited from mfem::Mesh
static bool	remove_unused_vertices = true

Static Protected Member Functions inherited from mfem::Mesh
static void	PrintElementWithoutAttr (const Element *, std::ostream &)

static void	PrintElement (const Element *, std::ostream &)

static int	GetTriOrientation (const int base, const int test)
	Returns the orientation of "test" relative to "base". More...

static int	GetQuadOrientation (const int base, const int test)
	Returns the orientation of "test" relative to "base". More...

static int	GetTetOrientation (const int base, const int test)
	Returns the orientation of "test" relative to "base". More...

static void	GetElementArrayEdgeTable (const Array< Element * > &elem_array, const DSTable &v_to_v, Table &el_to_edge)

Static Protected Attributes inherited from mfem::Mesh
static const int	vtk_quadratic_tet [10]

static const int	vtk_quadratic_wedge [18]

static const int	vtk_quadratic_hex [27]

Detailed Description

Class for parallel meshes.

Definition at line 32 of file pmesh.hpp.

Constructor & Destructor Documentation

mfem::ParMesh::ParMesh ( const ParNCMesh & pncmesh )

protected

Create from a nonconforming mesh.

Definition at line 851 of file pmesh.cpp.

mfem::ParMesh::ParMesh ( )

inline

Default constructor. Create an empty ParMesh.

Definition at line 219 of file pmesh.hpp.

mfem::ParMesh::ParMesh	(	MPI_Comm	comm,
		Mesh &	mesh,
		int *	partitioning_ = `NULL`,
		int	part_method = `1`
	)

Create a parallel mesh by partitioning a serial Mesh.

The mesh is partitioned automatically or using external partitioning data (the optional parameter 'partitioning_[i]' contains the desired MPI rank for element 'i'). Automatic partitioning uses METIS for conforming meshes and quick space-filling curve equipartitioning for nonconforming meshes (elements of nonconforming meshes should ideally be ordered as a sequence of face-neighbors).

Definition at line 106 of file pmesh.cpp.

mfem::ParMesh::ParMesh	(	const ParMesh &	pmesh,
		bool	copy_nodes = `true`
	)

explicit

Copy constructor. Performs a deep copy of (almost) all data, so that the source mesh can be modified (e.g. deleted, refined) without affecting the new mesh. If 'copy_nodes' is false, use a shallow (pointer) copy for the nodes, if present.

Definition at line 31 of file pmesh.cpp.

mfem::ParMesh::ParMesh	(	MPI_Comm	comm,
		std::istream &	input,
		bool	refine = `true`
	)

Read a parallel mesh, each MPI rank from its own file/stream.

The refine parameter is passed to the method Mesh::Finalize().

Definition at line 920 of file pmesh.cpp.

mfem::ParMesh::ParMesh	(	ParMesh *	orig_mesh,
		int	ref_factor,
		int	ref_type
	)

Deprecated: see ParMesh::MakeRefined.

Definition at line 1122 of file pmesh.cpp.

mfem::ParMesh::ParMesh ( ParMesh && mesh )

Move constructor. Used for named constructors.

Definition at line 95 of file pmesh.cpp.

mfem::ParMesh::~ParMesh ( )

virtual

Definition at line 5944 of file pmesh.cpp.

Member Function Documentation

void mfem::ParMesh::BuildEdgeGroup	(	int	ngroups,
		const Table &	edge_element
	)

protected

Definition at line 666 of file pmesh.cpp.

void mfem::ParMesh::BuildFaceGroup	(	int	ngroups,
		const Mesh &	mesh,
		const Array< int > &	face_group,
		int &	nstria,
		int &	nsquad
	)

protected

Definition at line 620 of file pmesh.cpp.

int mfem::ParMesh::BuildLocalBoundary	(	const Mesh &	global_mesh,
		const int *	partitioning,
		const Array< int > &	vert_global_local,
		Array< bool > &	activeBdrElem,
		Table *&	edge_element
	)

protected

Fills out partitioned Mesh::boundary.

Definition at line 381 of file pmesh.cpp.

int mfem::ParMesh::BuildLocalElements	(	const Mesh &	global_mesh,
		const int *	partitioning,
		const Array< int > &	vert_global_local
	)

protected

Fills out partitioned Mesh::elements.

Definition at line 348 of file pmesh.cpp.

int mfem::ParMesh::BuildLocalVertices	(	const Mesh &	global_mesh,
		const int *	partitioning,
		Array< int > &	vert_global_local
	)

protected

Fills out partitioned Mesh::vertices.

Definition at line 300 of file pmesh.cpp.

void mfem::ParMesh::BuildSharedEdgeElems	(	int	nedges,
		Mesh &	mesh,
		const Array< int > &	vert_global_local,
		const Table *	edge_element
	)

protected

Definition at line 795 of file pmesh.cpp.

void mfem::ParMesh::BuildSharedFaceElems	(	int	ntri_faces,
		int	nquad_faces,
		const Mesh &	mesh,
		int *	partitioning,
		const STable3D *	faces_tbl,
		const Array< int > &	face_group,
		const Array< int > &	vert_global_local
	)

protected

Definition at line 718 of file pmesh.cpp.

void mfem::ParMesh::BuildSharedVertMapping	(	int	nvert,
		const Table *	vert_element,
		const Array< int > &	vert_global_local
	)

protected

Definition at line 832 of file pmesh.cpp.

void mfem::ParMesh::BuildVertexGroup	(	int	ngroups,
		const Table &	vert_element
	)

protected

Definition at line 692 of file pmesh.cpp.

void mfem::ParMesh::ComputeGlobalElementOffset ( ) const

protected

Definition at line 865 of file pmesh.cpp.

bool mfem::ParMesh::DecodeFaceSplittings	(	HashTable< Hashed2 > &	v_to_v,
		const int *	v,
		const Array< unsigned > &	codes,
		int &	pos
	)

protected

Definition at line 1800 of file pmesh.cpp.

void mfem::ParMesh::DeleteFaceNbrData ( )

protected

Definition at line 1937 of file pmesh.cpp.

void mfem::ParMesh::Destroy ( )

protected

Definition at line 5930 of file pmesh.cpp.

void mfem::ParMesh::DistributeAttributes ( Array< int > & attr )

protected

Ensure that bdr_attributes and attributes agree across processors.

Definition at line 1538 of file pmesh.cpp.

void mfem::ParMesh::EnsureParNodes ( )

protected

If the mesh is curved, make sure 'Nodes' is ParGridFunction.

Note that this method is not related to the public 'Mesh::EnsureNodes`.

Definition at line 1978 of file pmesh.cpp.

void mfem::ParMesh::ExchangeFaceNbrData	(	Table *	gr_sface,
		int *	s2l_face
	)

protected

Definition at line 2085 of file pmesh.cpp.

void mfem::ParMesh::ExchangeFaceNbrData ( )

Definition at line 2000 of file pmesh.cpp.

void mfem::ParMesh::ExchangeFaceNbrNodes ( )

Definition at line 2454 of file pmesh.cpp.

void mfem::ParMesh::Finalize	(	bool	refine = `false`,
		bool	fix_orientation = `false`
	)

virtual

Finalize the construction of a general Mesh.

This method will:

check and optionally fix the orientation of regular elements
check and fix the orientation of boundary elements
assume that vertices are defined, if Nodes == NULL

assume that Nodes are defined, if Nodes != NULL.

Parameters

[in]	refine	If true, prepare the Mesh for conforming refinement of triangular or tetrahedral meshes.
[in]	fix_orientation	If true, fix the orientation of inverted mesh elements by permuting their vertices.

Before calling this method, call FinalizeTopology() and ensure that the Mesh vertices or nodes are set.

Reimplemented from mfem::Mesh.

Definition at line 1510 of file pmesh.cpp.

void mfem::ParMesh::FinalizeParTopo ( )

protected

Definition at line 883 of file pmesh.cpp.

int mfem::ParMesh::FindPoints	(	DenseMatrix &	point_mat,
		Array< int > &	elem_ids,
		Array< IntegrationPoint > &	ips,
		bool	warn = `true`,
		InverseElementTransformation *	inv_trans = `NULL`
	)

virtual

Find the ids of the elements that contain the given points, and their corresponding reference coordinates.

The DenseMatrix point_mat describes the given points - one point for each column; it should have SpaceDimension() rows.

The InverseElementTransformation object, inv_trans, is used to attempt the element transformation inversion. If NULL pointer is given, the method will use a default constructed InverseElementTransformation. Note that the algorithms in the base class InverseElementTransformation can be completely overwritten by deriving custom classes that override the Transform() method.

If no element is found for the i-th point, elem_ids[i] is set to -1.

In the ParMesh implementation, the point_mat is expected to be the same on all ranks. If the i-th point is found by multiple ranks, only one of them will mark that point as found, i.e. set its elem_ids[i] to a non-negative number; the other ranks will set their elem_ids[i] to -2 to indicate that the point was found but assigned to another rank.

Returns: The total number of points that were found.

Note: This method is not 100 percent reliable, i.e. it is not guaranteed to find a point, even if it lies inside a mesh element.

Reimplemented from mfem::Mesh.

Definition at line 5675 of file pmesh.cpp.

int mfem::ParMesh::FindSharedEdges	(	const Mesh &	mesh,
		const int *	partition,
		Table *&	edge_element,
		ListOfIntegerSets &	groups
	)

protected

Definition at line 529 of file pmesh.cpp.

void mfem::ParMesh::FindSharedFaces	(	const Mesh &	mesh,
		const int *	partition,
		Array< int > &	face_group,
		ListOfIntegerSets &	groups
	)

protected

Definition at line 502 of file pmesh.cpp.

int mfem::ParMesh::FindSharedVertices	(	const int *	partition,
		Table *	vertex_element,
		ListOfIntegerSets &	groups
	)

protected

Definition at line 583 of file pmesh.cpp.

void mfem::ParMesh::GenerateOffsets	(	int	N,
		HYPRE_BigInt	loc_sizes[],
		Array< HYPRE_BigInt > *	offsets[]
	)		const

Definition at line 1836 of file pmesh.cpp.

void mfem::ParMesh::GetBoundingBox	(	Vector &	p_min,
		Vector &	p_max,
		int	ref = `2`
	)

Returns the minimum and maximum corners of the mesh bounding box. For high-order meshes, the geometry is refined first "ref" times.

Definition at line 5377 of file pmesh.cpp.

void mfem::ParMesh::GetCharacteristics	(	double &	h_min,
		double &	h_max,
		double &	kappa_min,
		double &	kappa_max
	)

Definition at line 5393 of file pmesh.cpp.

MPI_Comm mfem::ParMesh::GetComm ( ) const

inline

Definition at line 276 of file pmesh.hpp.

int mfem::ParMesh::GetEdgeSplittings	(	Element *	edge,
		const DSTable &	v_to_v,
		int *	middle
	)

protected

Return a number(0-1) identifying how the given edge has been split.

Definition at line 1750 of file pmesh.cpp.

double mfem::ParMesh::GetFaceNbrElementSize	(	int	i,
		int	type = `0`
	)

Get the size of the i-th face neighbor element relative to the reference element.

Definition at line 1932 of file pmesh.cpp.

void mfem::ParMesh::GetFaceNbrElementTransformation	(	int	i,
		IsoparametricTransformation *	ElTr
	)

protected

Definition at line 1879 of file pmesh.cpp.

ElementTransformation* mfem::ParMesh::GetFaceNbrElementTransformation ( int i )

inline

Definition at line 355 of file pmesh.hpp.

int mfem::ParMesh::GetFaceNbrGroup ( int fn ) const

inline

Definition at line 341 of file pmesh.hpp.

int mfem::ParMesh::GetFaceNbrRank ( int fn ) const

Definition at line 2514 of file pmesh.cpp.

void mfem::ParMesh::GetFaceSplittings	(	const int *	fv,
		const HashTable< Hashed2 > &	v_to_v,
		Array< unsigned > &	codes
	)

protected

Append codes identifying how the given face has been split to codes.

Definition at line 1765 of file pmesh.cpp.

Table * mfem::ParMesh::GetFaceToAllElementTable ( ) const

Similar to Mesh::GetFaceToElementTable with added face-neighbor elements with indices offset by the local number of elements.

Definition at line 2531 of file pmesh.cpp.

void mfem::ParMesh::GetGhostFaceTransformation	(	FaceElementTransformations *	FETr,
		Element::Type	face_type,
		Geometry::Type	face_geom
	)

protected

Definition at line 2589 of file pmesh.cpp.

void mfem::ParMesh::GetGlobalEdgeIndices ( Array< HYPRE_Int > & gi ) const

AMR meshes are not supported.

Definition at line 5827 of file pmesh.cpp.

void mfem::ParMesh::GetGlobalElementIndices ( Array< HYPRE_Int > & gi ) const

AMR meshes are supported.

Definition at line 5878 of file pmesh.cpp.

long mfem::ParMesh::GetGlobalElementNum ( int local_element_num ) const

Map a local element number to a global element number.

Definition at line 1532 of file pmesh.cpp.

void mfem::ParMesh::GetGlobalFaceIndices ( Array< HYPRE_Int > & gi ) const

AMR meshes are not supported.

Definition at line 5850 of file pmesh.cpp.

void mfem::ParMesh::GetGlobalVertexIndices ( Array< HYPRE_Int > & gi ) const

AMR meshes are not supported.

The following functions define global indices for all local vertices, edges, faces, or elements. The global indices have no meaning or significance for ParMesh, but can be used for purposes beyond this class.

Definition at line 5811 of file pmesh.cpp.

int mfem::ParMesh::GetLocalElementNum ( long global_element_num ) const

Map a global element number to a local element number. If the global element is not on this processor, return -1.

Definition at line 1524 of file pmesh.cpp.

int mfem::ParMesh::GetMyRank ( ) const

inline

Definition at line 278 of file pmesh.hpp.

int mfem::ParMesh::GetNFaceNeighborElements ( ) const

inline

Definition at line 340 of file pmesh.hpp.

int mfem::ParMesh::GetNFaceNeighbors ( ) const

inline

Definition at line 339 of file pmesh.hpp.

int mfem::ParMesh::GetNGroups ( ) const

inline

Definition at line 315 of file pmesh.hpp.

int mfem::ParMesh::GetNRanks ( ) const

inline

Definition at line 277 of file pmesh.hpp.

int mfem::ParMesh::GetNSharedFaces ( ) const

Return the number of shared faces (3D), edges (2D), vertices (1D)

Definition at line 2731 of file pmesh.cpp.

int mfem::ParMesh::GetSharedFace ( int sface ) const

Return the local face index for the given shared face.

Definition at line 2750 of file pmesh.cpp.

FaceElementTransformations * mfem::ParMesh::GetSharedFaceTransformations	(	int	sf,
		bool	fill2 = `true`
	)

Get the FaceElementTransformations for the given shared face (edge 2D). In the returned object, 1 and 2 refer to the local and the neighbor elements, respectively.

Definition at line 2622 of file pmesh.cpp.

void mfem::ParMesh::GroupEdge	(	int	group,
		int	i,
		int &	edge,
		int &	o
	)

Definition at line 1592 of file pmesh.cpp.

int mfem::ParMesh::GroupNEdges ( int group )

inline

Definition at line 319 of file pmesh.hpp.

int mfem::ParMesh::GroupNQuadrilaterals ( int group )

inline

Definition at line 321 of file pmesh.hpp.

int mfem::ParMesh::GroupNTriangles ( int group )

inline

Definition at line 320 of file pmesh.hpp.

int mfem::ParMesh::GroupNVertices ( int group )

inline

Definition at line 318 of file pmesh.hpp.

void mfem::ParMesh::GroupQuadrilateral	(	int	group,
		int	i,
		int &	face,
		int &	o
	)

Definition at line 1611 of file pmesh.cpp.

void mfem::ParMesh::GroupTriangle	(	int	group,
		int	i,
		int &	face,
		int &	o
	)

Definition at line 1600 of file pmesh.cpp.

int mfem::ParMesh::GroupVertex	(	int	group,
		int	i
	)

inline

Definition at line 323 of file pmesh.hpp.

void mfem::ParMesh::Load	(	std::istream &	input,
		int	generate_edges = `0`,
		int	refine = `1`,
		bool	fix_orientation = `true`
	)

virtual

Parallel version of Mesh::Load().

Reimplemented from mfem::Mesh.

Definition at line 937 of file pmesh.cpp.

void mfem::ParMesh::LoadSharedEntities ( std::istream & input )

protected

Definition at line 973 of file pmesh.cpp.

void mfem::ParMesh::LocalRefinement	(	const Array< int > &	marked_el,
		int	type = `3`
	)

protectedvirtual

This function is not public anymore. Use GeneralRefinement instead.

Reimplemented from mfem::Mesh.

Definition at line 2988 of file pmesh.cpp.

ParMesh mfem::ParMesh::MakeRefined	(	ParMesh &	orig_mesh,
		int	ref_factor,
		int	ref_type
	)

static

Create a uniformly refined (by any factor) version of orig_mesh.

Parameters

[in]	orig_mesh	The starting coarse mesh.
[in]	ref_factor	The refinement factor, an integer > 1.
[in]	ref_type	Specify the positions of the new vertices. The options are BasisType::ClosedUniform or BasisType::GaussLobatto.

The refinement data which can be accessed with GetRefinementTransforms() is set to reflect the performed refinements.

Note: The constructed ParMesh is linear, i.e. it does not have nodes.

Definition at line 1361 of file pmesh.cpp.

void mfem::ParMesh::MakeRefined_	(	ParMesh &	orig_mesh,
		int	ref_factor,
		int	ref_type
	)

protected

Internal function used in ParMesh::MakeRefined (and related constructor)

Definition at line 1127 of file pmesh.cpp.

ParMesh mfem::ParMesh::MakeSimplicial ( ParMesh & orig_mesh )

static

Create a mesh by splitting each element of orig_mesh into simplices. See Mesh::MakeSimplicial for more details.

Definition at line 1368 of file pmesh.cpp.

void mfem::ParMesh::MarkTetMeshForRefinement ( DSTable & v_to_v )

protectedvirtual

Reimplemented from mfem::Mesh.

Definition at line 1622 of file pmesh.cpp.

bool mfem::ParMesh::NonconformingDerefinement	(	Array< double > &	elem_error,
		double	threshold,
		int	nc_limit = `0`,
		int	op = `1`
	)

protectedvirtual

NC version of GeneralDerefinement.

Reimplemented from mfem::Mesh.

Definition at line 3544 of file pmesh.cpp.

void mfem::ParMesh::NonconformingRefinement	(	const Array< Refinement > &	refinements,
		int	nc_limit = `0`
	)

protectedvirtual

This function is not public anymore. Use GeneralRefinement instead.

Reimplemented from mfem::Mesh.

Definition at line 3492 of file pmesh.cpp.

void mfem::ParMesh::NURBSUniformRefinement ( )

protectedvirtual

Refine NURBS mesh.

Reimplemented from mfem::Mesh.

Definition at line 4160 of file pmesh.cpp.

ParMesh & mfem::ParMesh::operator= ( ParMesh && mesh )

Move assignment operator.

Definition at line 100 of file pmesh.cpp.

ParMesh& mfem::ParMesh::operator= ( ParMesh & mesh )

delete

Explicitly delete the copy assignment operator.

void mfem::ParMesh::ParPrint ( std::ostream & out ) const

Save the mesh in a parallel mesh format.

Definition at line 5525 of file pmesh.cpp.

void mfem::ParMesh::Print ( std::ostream & out = mfem::out ) const

virtual

Print the part of the mesh in the calling processor adding the interface as boundary (for visualization purposes) using the mfem v1.0 format.

Reimplemented from mfem::Mesh.

Definition at line 4382 of file pmesh.cpp.

void mfem::ParMesh::Print ( adios2stream & out ) const

virtual

Print the part of the mesh in the calling processor using adios2 bp format.

Reimplemented from mfem::Mesh.

Definition at line 4509 of file pmesh.cpp.

void mfem::ParMesh::PrintAsOne ( std::ostream & out = mfem::out ) const

Write the mesh to the stream 'out' on Process 0 in a form suitable for visualization: the mesh is written as a disjoint mesh and the shared boundary is added to the actual boundary; both the element and boundary attributes are set to the processor number.

Definition at line 4527 of file pmesh.cpp.

void mfem::ParMesh::PrintAsOneXG ( std::ostream & out = mfem::out )

Old mesh format (Netgen/Truegrid) version of 'PrintAsOne'.

Definition at line 4847 of file pmesh.cpp.

void mfem::ParMesh::PrintInfo ( std::ostream & out = mfem::out )

virtual

Print various parallel mesh stats.

Reimplemented from mfem::Mesh.

Definition at line 5406 of file pmesh.cpp.

void mfem::ParMesh::PrintSharedEntities ( const char * fname_prefix ) const

Debugging method.

Definition at line 5724 of file pmesh.cpp.

void mfem::ParMesh::PrintVTU	(	std::string	pathname,
		VTKFormat	format = `VTKFormat::ASCII`,
		bool	high_order_output = `false`,
		int	compression_level = `0`,
		bool	bdr = `false`
	)

virtual

Print the mesh in parallel PVTU format. The PVTU and VTU files will be stored in the directory specified by pathname. If the directory does not exist, it will be created.

Reimplemented from mfem::Mesh.

Definition at line 5608 of file pmesh.cpp.

void mfem::ParMesh::PrintXG ( std::ostream & out = mfem::out ) const

virtual

Print the part of the mesh in the calling processor adding the interface as boundary (for visualization purposes) using Netgen/Truegrid format .

Reimplemented from mfem::Mesh.

Definition at line 4168 of file pmesh.cpp.

void mfem::ParMesh::Rebalance ( )

Load balance the mesh by equipartitioning the global space-filling sequence of elements. Works for nonconforming meshes only.

Definition at line 3602 of file pmesh.cpp.

void mfem::ParMesh::Rebalance ( const Array< int > & partition )

Load balance a nonconforming mesh using a user-defined partition. Each local element 'i' is migrated to processor rank 'partition[i]', for 0 <= i < GetNE().

Definition at line 3607 of file pmesh.cpp.

void mfem::ParMesh::RebalanceImpl ( const Array< int > * partition )

protected

Definition at line 3612 of file pmesh.cpp.

long mfem::ParMesh::ReduceInt ( int value ) const

virtual

Utility function: sum integers from all processors (Allreduce).

Reimplemented from mfem::Mesh.

Definition at line 5518 of file pmesh.cpp.

void mfem::ParMesh::ReduceMeshGen ( )

protected

Definition at line 877 of file pmesh.cpp.

void mfem::ParMesh::RefineGroups	(	const DSTable &	v_to_v,
		int *	middle
	)

protected

Update the groups after triangle refinement.

Definition at line 3650 of file pmesh.cpp.

void mfem::ParMesh::RefineGroups	(	int	old_nv,
		const HashTable< Hashed2 > &	v_to_v
	)

protected

Update the groups after tetrahedron refinement.

Definition at line 3723 of file pmesh.cpp.

void mfem::ParMesh::ReorientTetMesh ( )

virtual

See the remarks for the serial version in mesh.hpp.

Reimplemented from mfem::Mesh.

Definition at line 2798 of file pmesh.cpp.

void mfem::ParMesh::Save	(	const char *	fname,
		int	precision = `16`
	)		const

virtual

Save the ParMesh to files (one for each MPI rank). The files will be given suffixes according to the MPI rank. The mesh will be written to the files using ParMesh::Print. The given precision will be used for ASCII output.

Reimplemented from mfem::Mesh.

Definition at line 4499 of file pmesh.cpp.

void mfem::ParMesh::SaveAsOne	(	const char *	fname,
		int	precision = `16`
	)		const

Save the mesh as a single file (using ParMesh::PrintAsOne). The given precision is used for ASCII output.

Definition at line 4836 of file pmesh.cpp.

void mfem::ParMesh::SetAttributes ( )

virtual

Reimplemented from mfem::Mesh.

Definition at line 1574 of file pmesh.cpp.

void mfem::ParMesh::SetCurvature	(	int	order,
		bool	discont = `false`,
		int	space_dim = `-1`,
		int	ordering = `1`
	)

virtual

Set the curvature of the mesh nodes using the given polynomial degree, 'order', and optionally: discontinuous or continuous FE space, 'discont', new space dimension, 'space_dim' (if != -1), and 'ordering'.

Reimplemented from mfem::Mesh.

Definition at line 1958 of file pmesh.cpp.

void mfem::ParMesh::Swap ( ParMesh & other )

Swaps internal data with another ParMesh, including non-geometry members. See Mesh::Swap

Definition at line 5891 of file pmesh.cpp.

void mfem::ParMesh::UniformRefineGroups2D ( int old_nv )

protected

Definition at line 3907 of file pmesh.cpp.

void mfem::ParMesh::UniformRefineGroups3D	(	int	old_nv,
		int	old_nedges,
		const DSTable &	old_v_to_v,
		const STable3D &	old_faces,
		Array< int > *	f2qf
	)

protected

Definition at line 3958 of file pmesh.cpp.

void mfem::ParMesh::UniformRefinement2D ( )

protectedvirtual

Refine a mixed 2D mesh uniformly.

Reimplemented from mfem::Mesh.

Definition at line 4107 of file pmesh.cpp.

void mfem::ParMesh::UniformRefinement3D ( )

protectedvirtual

Refine a mixed 3D mesh uniformly.

Reimplemented from mfem::Mesh.

Definition at line 4131 of file pmesh.cpp.

bool mfem::ParMesh::WantSkipSharedMaster ( const NCMesh::Master & master ) const

protected

Definition at line 4369 of file pmesh.cpp.

Friends And Related Function Documentation

friend class adios2stream

friend

Definition at line 464 of file pmesh.hpp.

friend class ParNCMesh

friend

Definition at line 459 of file pmesh.hpp.

friend class ParPumiMesh

friend

Definition at line 461 of file pmesh.hpp.

Member Data Documentation

Array<Element *> mfem::ParMesh::face_nbr_elements

Definition at line 307 of file pmesh.hpp.

Array<int> mfem::ParMesh::face_nbr_elements_offset

Definition at line 305 of file pmesh.hpp.

Array<int> mfem::ParMesh::face_nbr_group

Definition at line 304 of file pmesh.hpp.

Array<Vertex> mfem::ParMesh::face_nbr_vertices

Definition at line 308 of file pmesh.hpp.

Array<int> mfem::ParMesh::face_nbr_vertices_offset

Definition at line 306 of file pmesh.hpp.

IsoparametricTransformation mfem::ParMesh::FaceNbrTransformation

protected

Definition at line 78 of file pmesh.hpp.

long mfem::ParMesh::glob_elem_offset

mutableprotected

Definition at line 81 of file pmesh.hpp.

long mfem::ParMesh::glob_offset_sequence

mutableprotected

Definition at line 81 of file pmesh.hpp.

Table mfem::ParMesh::group_sedge

protected

Definition at line 68 of file pmesh.hpp.

Table mfem::ParMesh::group_squad

protected

Definition at line 70 of file pmesh.hpp.

Table mfem::ParMesh::group_stria

protected

Definition at line 69 of file pmesh.hpp.

Table mfem::ParMesh::group_svert

protected

Shared objects in each group.

Definition at line 67 of file pmesh.hpp.

GroupTopology mfem::ParMesh::gtopo

Definition at line 300 of file pmesh.hpp.

bool mfem::ParMesh::have_face_nbr_data

Definition at line 303 of file pmesh.hpp.

MPI_Comm mfem::ParMesh::MyComm

protected

Definition at line 35 of file pmesh.hpp.

int mfem::ParMesh::MyRank

protected

Definition at line 36 of file pmesh.hpp.

int mfem::ParMesh::NRanks

protected

Definition at line 36 of file pmesh.hpp.

ParNCMesh* mfem::ParMesh::pncmesh

Definition at line 313 of file pmesh.hpp.

Array<int> mfem::ParMesh::sedge_ledge

protected

Definition at line 74 of file pmesh.hpp.

Table mfem::ParMesh::send_face_nbr_elements

Definition at line 310 of file pmesh.hpp.

Table mfem::ParMesh::send_face_nbr_vertices

Definition at line 311 of file pmesh.hpp.

Array<int> mfem::ParMesh::sface_lface

protected

Definition at line 76 of file pmesh.hpp.

Array<Element *> mfem::ParMesh::shared_edges

protected

Definition at line 59 of file pmesh.hpp.

Array<Vert4> mfem::ParMesh::shared_quads

protected

Definition at line 64 of file pmesh.hpp.

Array<Vert3> mfem::ParMesh::shared_trias

protected

Definition at line 63 of file pmesh.hpp.

Array<int> mfem::ParMesh::svert_lvert

protected

Shared to local index mapping.

Definition at line 73 of file pmesh.hpp.

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

mesh/pmesh.hpp
mesh/pmesh.cpp

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation