a generalization of mfem::ElementRestriction that works with multiple kinds of element geometries. Instead of doing the "E->L" (gather) and "L->E" (scatter) operations for only one element geometry, this class does them with block "E-vectors", where each element geometry is a separate block. More...

#include <element_restriction.hpp>

Public Member Functions
	BlockElementRestriction ()
	default ctor leaves this object uninitialized

	BlockElementRestriction (const mfem::FiniteElementSpace *fes)
	create a BlockElementRestriction for all domain-elements (geom dim == spatial dim)

	BlockElementRestriction (const mfem::FiniteElementSpace *fes, FaceType type)
	create a BlockElementRestriction for all face-elements (geom dim + 1 == spatial dim)

uint64_t	ESize () const
	the size of the "E-vector" associated with this restriction operator

uint64_t	LSize () const
	the size of the "L-vector" associated with this restriction operator

mfem::Array< int >	bOffsets () const
	block offsets used when constructing mfem::HypreParVectors

void	Gather (const mfem::Vector &L_vector, mfem::BlockVector &E_block_vector) const
	"L->E" in mfem parlance, each element gathers the values that belong to it, and stores them in the "E-vector"

void	ScatterAdd (const mfem::BlockVector &E_block_vector, mfem::Vector &L_vector) const
	"E->L" in mfem parlance, each element scatter-adds its local vector into the appropriate place in the "L-vector"

Public Attributes
std::map< mfem::Geometry::Type, ElementRestriction >	restrictions
	the individual ElementRestriction operators for each element geometry

Detailed Description

a generalization of mfem::ElementRestriction that works with multiple kinds of element geometries. Instead of doing the "E->L" (gather) and "L->E" (scatter) operations for only one element geometry, this class does them with block "E-vectors", where each element geometry is a separate block.

Definition at line 209 of file element_restriction.hpp.

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

src/serac/numerics/functional/element_restriction.hpp
src/serac/numerics/functional/element_restriction.cpp

Public Member Functions

Public Attributes

Detailed Description