Abstract parallel finite element space. More...

#include <pfespace.hpp>

Inheritance diagram for ParFiniteElementSpace:

Collaboration diagram for ParFiniteElementSpace:

Public Member Functions
	ParFiniteElementSpace (ParMesh pm, FiniteElementCollection f, int dim=1, int order=Ordering::byNODES)
MPI_Comm	GetComm ()
int	GetNRanks ()
int	GetMyRank ()
int	TrueVSize ()
int *	GetDofOffsets ()
int *	GetTrueDofOffsets ()
int	GlobalVSize ()
int	GlobalTrueVSize ()
int	GetDofSign (int i)
virtual void	GetElementDofs (int i, Array< int > &dofs) const
	Returns indexes of degrees of freedom in array dofs for i'th element.
virtual void	GetBdrElementDofs (int i, Array< int > &dofs) const
	Returns indexes of degrees of freedom for i'th boundary element.
HypreParMatrix *	Dof_TrueDof_Matrix ()
	The true dof-to-dof interpolation matrix.
void	DivideByGroupSize (double *vec)
	Scale a vector of true dofs.
GroupCommunicator &	GroupComm ()
	Return a reference to the internal GroupCommunicator (on VDofs)
GroupCommunicator *	ScalarGroupComm ()
	Return a new GroupCommunicator on Dofs.
void	Synchronize (Array< int > &ldof_marker)
virtual void	GetEssentialVDofs (Array< int > &bdr_attr_is_ess, Array< int > &ess_dofs)
	Determine the boundary degrees of freedom.
int	GetLocalTDofNumber (int ldof)
int	GetGlobalTDofNumber (int ldof)
	Returns the global tdof number of the given local degree of freedom.
int	GetGlobalScalarTDofNumber (int sldof)
void	Lose_Dof_TrueDof_Matrix ()
void	LoseDofOffsets ()
void	LoseTrueDofOffsets ()
virtual void	Update ()
virtual FiniteElementSpace *	SaveUpdate ()
	Return a copy of the current FE space and update.
virtual	~ParFiniteElementSpace ()
Private Member Functions
ParNURBSExtension *	pNURBSext ()
GroupTopology &	GetGroupTopo ()
	ParFiniteElementSpace (ParFiniteElementSpace &pf)
void	GetGroupComm (GroupCommunicator &gcomm, int ldof_type, Array< int > *ldof_sign=NULL)
void	GenerateGlobalOffsets ()
	Construct dof_offsets and tdof_offsets using global communication.
void	ConstructTrueDofs ()
	Construct ldof_group and ldof_ltdof.
void	ConstructTrueNURBSDofs ()
Private Attributes
MPI_Comm	MyComm
	MPI data.
int	NRanks
int	MyRank
ParMesh *	pmesh
	Parallel mesh.
GroupCommunicator *	gcomm
	GroupCommunicator on the local VDofs.
int	ltdof_size
	Number of true dofs in this processor (local true dofs).
Array< int >	ldof_group
	The group of each local dof.
Array< int >	ldof_ltdof
	For a local dof: the local true dof number in the master of its group.
Array< int >	dof_offsets
	Offsets for the dofs in each processor in global numbering.
Array< int >	tdof_offsets
	Offsets for the true dofs in each processor in global numbering.
Array< int >	tdof_nb_offsets
	Offsets for the true dofs in neighbor processor in global numbering.
Array< int >	ldof_sign
	The sign of the basis functions at the scalar local dofs.
HypreParMatrix *	P
	The matrix P (interpolation from true dof to dof).

Detailed Description

Abstract parallel finite element space.

Definition at line 16 of file pfespace.hpp.

Constructor & Destructor Documentation

ParFiniteElementSpace::ParFiniteElementSpace ( ParFiniteElementSpace & pf ) [private]

Create a parallel FE space stealing all data (except RefData) from the given FE space. This is used in SaveUpdate().

ParFiniteElementSpace::ParFiniteElementSpace	(	ParMesh *	pm,
		FiniteElementCollection *	f,
		int	dim = `1`,
		int	order = `Ordering::byNODES`
	)

virtual ParFiniteElementSpace::~ParFiniteElementSpace ( ) [inline, virtual]

Definition at line 133 of file pfespace.hpp.

References gcomm, and P.

Member Function Documentation

void ParFiniteElementSpace::ConstructTrueDofs ( ) [private]

Construct ldof_group and ldof_ltdof.

void ParFiniteElementSpace::ConstructTrueNURBSDofs ( ) [private]

void ParFiniteElementSpace::DivideByGroupSize ( double * vec )

Scale a vector of true dofs.

HypreParMatrix* ParFiniteElementSpace::Dof_TrueDof_Matrix ( )

The true dof-to-dof interpolation matrix.

Referenced by GlobalTrueVSize(), and GlobalVSize().

void ParFiniteElementSpace::GenerateGlobalOffsets ( ) [private]

Construct dof_offsets and tdof_offsets using global communication.

virtual void ParFiniteElementSpace::GetBdrElementDofs	(	int	i,
		Array< int > &	dofs
	)		const `[virtual]`

Returns indexes of degrees of freedom for i'th boundary element.

Reimplemented from FiniteElementSpace.

MPI_Comm ParFiniteElementSpace::GetComm ( ) [inline]

Definition at line 78 of file pfespace.hpp.

References MyComm.

int* ParFiniteElementSpace::GetDofOffsets ( ) [inline]

Definition at line 83 of file pfespace.hpp.

References dof_offsets.

int ParFiniteElementSpace::GetDofSign ( int i ) [inline]

Definition at line 87 of file pfespace.hpp.

References ldof_sign, FiniteElementSpace::NURBSext, and FiniteElementSpace::VDofToDof().

virtual void ParFiniteElementSpace::GetElementDofs	(	int	i,
		Array< int > &	dofs
	)		const `[virtual]`

Returns indexes of degrees of freedom in array dofs for i'th element.

Reimplemented from FiniteElementSpace.

virtual void ParFiniteElementSpace::GetEssentialVDofs	(	Array< int > &	bdr_attr_is_ess,
		Array< int > &	ess_dofs
	)		`[virtual]`

Determine the boundary degrees of freedom.

Reimplemented from FiniteElementSpace.

Referenced by main().

int ParFiniteElementSpace::GetGlobalScalarTDofNumber ( int sldof )

Returns the global tdof number of the given local degree of freedom in the scalar vesion of the current finite element space. The input should be a scalar local dof.

int ParFiniteElementSpace::GetGlobalTDofNumber ( int ldof )

Returns the global tdof number of the given local degree of freedom.