mfem::LORBase Class Reference

Abstract base class for LORDiscretization and ParLORDiscretization classes, which construct low-order refined versions of bilinear forms. More...

#include <lor.hpp>

Inheritance diagram for mfem::LORBase:

Collaboration diagram for mfem::LORBase:

Public Member Functions
const OperatorHandle &	GetAssembledSystem () const
	Returns the assembled LOR system. More...
const Array< int > &	GetDofPermutation () const
	Returns the permutation that maps LOR DOFs to high-order DOFs. More...
FiniteElementSpace &	GetFESpace () const
	Returns the low-order refined finite element space. More...
	~LORBase ()

Protected Types
enum	FESpaceType {   H1, ND, RT, L2,   INVALID }

Protected Member Functions
void	ConstructLocalDofPermutation (Array< int > &perm_) const
void	ConstructDofPermutation () const
bool	HasSameDofNumbering () const
void	SetupProlongationAndRestriction ()
FESpaceType	GetFESpaceType () const
	Returns the type of finite element space: H1, ND, RT or L2. More...
int	GetLOROrder () const
	Returns the order of the LOR space. 1 for H1 or ND, 0 for L2 or RT. More...
void	AssembleSystem_ (BilinearForm &a_ho, const Array< int > &ess_dofs)
	LORBase (FiniteElementSpace &fes_ho_)

Protected Attributes
FiniteElementSpace &	fes_ho
Mesh *	mesh
FiniteElementCollection *	fec
FiniteElementSpace *	fes
BilinearForm *	a
OperatorHandle	A
Array< int >	perm

Detailed Description

Abstract base class for LORDiscretization and ParLORDiscretization classes, which construct low-order refined versions of bilinear forms.

Definition at line 22 of file lor.hpp.

Member Enumeration Documentation

enum mfem::LORBase::FESpaceType

protected

Enumerator
H1
ND
RT
L2
INVALID

Definition at line 63 of file lor.hpp.

Constructor & Destructor Documentation

mfem::LORBase::LORBase ( FiniteElementSpace &  fes_ho_ )

protected

Definition at line 348 of file lor.cpp.

mfem::LORBase::~LORBase

(

)

Definition at line 368 of file lor.cpp.

Member Function Documentation

void mfem::LORBase::AssembleSystem_ ( BilinearForm &  a_ho, const Array< int > &  ess_dofs  )

protected

Assembles the LOR system (used internally by LORDiscretization::AssembleSystem and ParLORDiscretization::AssembleSystem).

Definition at line 264 of file lor.cpp.

void mfem::LORBase::ConstructDofPermutation ( ) const

protected

Construct the permutation that maps LOR DOFs to high-order DOFs. See GetDofPermutation.

Definition at line 204 of file lor.cpp.

void mfem::LORBase::ConstructLocalDofPermutation ( Array< int > &  perm_ ) const

protected

Constructs the local DOF (ldof) permutation. In parallel this is used as an intermediate step in computing the DOF permutation (see ConstructDofPermutation and GetDofPermutation).

Definition at line 85 of file lor.cpp.

const OperatorHandle & mfem::LORBase::GetAssembledSystem

(

)

const

Returns the assembled LOR system.

Definition at line 258 of file lor.cpp.

const Array< int > & mfem::LORBase::GetDofPermutation

(

)

const

Returns the permutation that maps LOR DOFs to high-order DOFs.

This permutation is constructed the first time it is requested, and then is cached. For H1 and L2 finite element spaces (or for nonconforming spaces) this is the identity. In these cases, RequiresDofPermutation will return false. However, if the DOF permutation is requested, an identity permutation will be built and returned.

For vector finite element spaces (ND and RT), the DOF permutation is nontrivial. Returns an array perm such that, given an index i of a LOR dof, perm[i] is the index of the corresponding HO dof.

Definition at line 246 of file lor.cpp.

FiniteElementSpace& mfem::LORBase::GetFESpace ( ) const

inline

Returns the low-order refined finite element space.

Definition at line 121 of file lor.hpp.

LORBase::FESpaceType mfem::LORBase::GetFESpaceType ( ) const

protected

Returns the type of finite element space: H1, ND, RT or L2.

Definition at line 68 of file lor.cpp.

int mfem::LORBase::GetLOROrder ( ) const

protected

Returns the order of the LOR space. 1 for H1 or ND, 0 for L2 or RT.

Definition at line 79 of file lor.cpp.

bool mfem::LORBase::HasSameDofNumbering ( ) const

protected

Returns true if the LOR space and HO space have the same DOF numbering (H1 or L2 spaces), false otherwise (ND or RT spaces).

Definition at line 252 of file lor.cpp.

void mfem::LORBase::SetupProlongationAndRestriction ( )

protected

Sets up the prolongation and restriction operators required in the case of different DOF numberings (ND or RT spaces) or nonconforming spaces.

Definition at line 287 of file lor.cpp.

Member Data Documentation

BilinearForm* mfem::LORBase::a

protected

Definition at line 69 of file lor.hpp.

OperatorHandle mfem::LORBase::A

protected

Definition at line 70 of file lor.hpp.

FiniteElementCollection* mfem::LORBase::fec

protected

Definition at line 67 of file lor.hpp.

FiniteElementSpace* mfem::LORBase::fes

protected

Definition at line 68 of file lor.hpp.

FiniteElementSpace& mfem::LORBase::fes_ho

protected

Definition at line 65 of file lor.hpp.

Mesh* mfem::LORBase::mesh

protected

Definition at line 66 of file lor.hpp.

Array<int> mfem::LORBase::perm

mutableprotected

Definition at line 71 of file lor.hpp.

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

• fem/lor.hpp
• fem/lor.cpp