Parallel non-linear operator on the true dofs. More...

#include <pnonlinearform.hpp>

Inheritance diagram for mfem::ParNonlinearForm:

Collaboration diagram for mfem::ParNonlinearForm:

Public Member Functions
	ParNonlinearForm (ParFiniteElementSpace *pf)

ParFiniteElementSpace *	ParFESpace () const

virtual void	SetEssentialBC (const Array< int > &bdr_attr_is_ess, Vector *rhs=NULL)

virtual double	GetEnergy (const ParGridFunction &x) const
	Compute the energy of a ParGridFunction. More...

virtual double	GetEnergy (const Vector &x) const
	Compute the energy of a true-dof vector 'x'. More...

virtual void	Mult (const Vector &x, Vector &y) const
	Operator application: `y=A(x)`. More...

const SparseMatrix &	GetLocalGradient (const Vector &x) const
	Return the local gradient matrix for the given true-dof vector x. More...

virtual Operator &	GetGradient (const Vector &x) const
	Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More...

void	SetGradientType (Operator::Type tid)
	Set the operator type id for the parallel gradient matrix/operator. More...

virtual	~ParNonlinearForm ()

Public Member Functions inherited from mfem::NonlinearForm
	NonlinearForm (FiniteElementSpace *f)

void	AddDomainIntegrator (NonlinearFormIntegrator *nlfi)
	Adds new Domain Integrator. More...

void	SetEssentialVDofs (const Array< int > &ess_vdofs_list)

virtual	~NonlinearForm ()

Public Member Functions inherited from mfem::Operator
	Operator (int s=0)
	Construct a square Operator with given size s (default 0). More...

	Operator (int h, int w)
	Construct an Operator with the given height (output size) and width (input size). More...

int	Height () const
	Get the height (size of output) of the Operator. Synonym with NumRows(). More...

int	NumRows () const
	Get the number of rows (size of output) of the Operator. Synonym with Height(). More...

int	Width () const
	Get the width (size of input) of the Operator. Synonym with NumCols(). More...

int	NumCols () const
	Get the number of columns (size of input) of the Operator. Synonym with Width(). More...

virtual void	MultTranspose (const Vector &x, Vector &y) const
	Action of the transpose operator: `y=A^t(x)`. The default behavior in class Operator is to generate an error. More...

virtual const Operator *	GetProlongation () const
	Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. `NULL` means identity. More...

virtual const Operator *	GetRestriction () const
	Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. `NULL` means identity. More...

void	FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B, int copy_interior=0)
	Form a constrained linear system using a matrix-free approach. More...

virtual void	RecoverFEMSolution (const Vector &X, const Vector &b, Vector &x)
	Reconstruct a solution vector x (e.g. a GridFunction) from the solution X of a constrained linear system obtained from Operator::FormLinearSystem(). More...

void	PrintMatlab (std::ostream &out, int n=0, int m=0) const
	Prints operator with input size n and output size m in Matlab format. More...

virtual	~Operator ()
	Virtual destructor. More...

Protected Attributes
ParGridFunction	X

ParGridFunction	Y

OperatorHandle	pGrad

Protected Attributes inherited from mfem::NonlinearForm
FiniteElementSpace *	fes
	FE space on which the form lives. More...

Array< NonlinearFormIntegrator * >	dfi
	Set of Domain Integrators to be assembled (added). More...

SparseMatrix *	Grad

Array< int >	ess_vdofs

Protected Attributes inherited from mfem::Operator
int	height
	Dimension of the output / number of rows in the matrix. More...

int	width
	Dimension of the input / number of columns in the matrix. More...

Additional Inherited Members
Public Types inherited from mfem::Operator
enum	Type { MFEM_SPARSEMAT, HYPRE_PARCSR, PETSC_MATAIJ, PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST }
	Enumeration defining IDs for some classes derived from Operator. More...

Detailed Description

Parallel non-linear operator on the true dofs.

Definition at line 26 of file pnonlinearform.hpp.

Constructor & Destructor Documentation

mfem::ParNonlinearForm::ParNonlinearForm ( ParFiniteElementSpace * pf )

inline

Definition at line 33 of file pnonlinearform.hpp.

virtual mfem::ParNonlinearForm::~ParNonlinearForm ( )

inlinevirtual

Definition at line 60 of file pnonlinearform.hpp.

Member Function Documentation

double mfem::ParNonlinearForm::GetEnergy ( const ParGridFunction & x ) const

virtual

Compute the energy of a ParGridFunction.

Definition at line 42 of file pnonlinearform.cpp.

double mfem::ParNonlinearForm::GetEnergy ( const Vector & x ) const

virtual

Compute the energy of a true-dof vector 'x'.

Reimplemented from mfem::NonlinearForm.

Definition at line 54 of file pnonlinearform.cpp.

Operator & mfem::ParNonlinearForm::GetGradient ( const Vector & x ) const

virtual

Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error.

Reimplemented from mfem::NonlinearForm.

Definition at line 80 of file pnonlinearform.cpp.

const SparseMatrix & mfem::ParNonlinearForm::GetLocalGradient ( const Vector & x ) const

Return the local gradient matrix for the given true-dof vector x.

Definition at line 71 of file pnonlinearform.cpp.

void mfem::ParNonlinearForm::Mult	(	const Vector &	x,
		Vector &	y
	)		const

virtual

Operator application: y=A(x).

Reimplemented from mfem::NonlinearForm.

Definition at line 60 of file pnonlinearform.cpp.

ParFiniteElementSpace* mfem::ParNonlinearForm::ParFESpace ( ) const

inline

Definition at line 37 of file pnonlinearform.hpp.

void mfem::ParNonlinearForm::SetEssentialBC	(	const Array< int > &	bdr_attr_is_ess,
		Vector *	rhs = `NULL`
	)

virtual

Reimplemented from mfem::NonlinearForm.

Definition at line 21 of file pnonlinearform.cpp.

void mfem::ParNonlinearForm::SetGradientType ( Operator::Type tid )

inline

Set the operator type id for the parallel gradient matrix/operator.

Definition at line 58 of file pnonlinearform.hpp.

Member Data Documentation

OperatorHandle mfem::ParNonlinearForm::pGrad

mutableprotected

Definition at line 30 of file pnonlinearform.hpp.

ParGridFunction mfem::ParNonlinearForm::X

mutableprotected

Definition at line 29 of file pnonlinearform.hpp.

ParGridFunction mfem::ParNonlinearForm::Y

mutableprotected

Definition at line 29 of file pnonlinearform.hpp.

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

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation