MFEM  v4.2.0
Finite element discretization library
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mfem::PANonlinearFormExtension Class Reference

Data and methods for partially-assembled nonlinear forms. More...

#include <nonlinearform_ext.hpp>

Inheritance diagram for mfem::PANonlinearFormExtension:
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Collaboration diagram for mfem::PANonlinearFormExtension:
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Public Member Functions

 PANonlinearFormExtension (NonlinearForm *)
 
void AssemblePA ()
 
void Mult (const Vector &x, Vector &y) const
 Operator application: y=A(x). More...
 
- Public Member Functions inherited from mfem::NonlinearFormExtension
 NonlinearFormExtension (NonlinearForm *form)
 
- Public Member Functions inherited from mfem::Operator
void InitTVectors (const Operator *Po, const Operator *Ri, const Operator *Pi, Vector &x, Vector &b, Vector &X, Vector &B) const
 Initializes memory for true vectors of linear system. More...
 
 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 MemoryClass GetMemoryClass () const
 Return the MemoryClass preferred by the Operator. 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 OperatorGetGradient (const Vector &x) const
 Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More...
 
virtual const OperatorGetProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity. More...
 
virtual const OperatorGetRestriction () const
 Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More...
 
virtual const OperatorGetOutputProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to output vectors for the operator. NULL means identity. More...
 
virtual const OperatorGetOutputRestriction () const
 Restriction operator from output 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...
 
void FormRectangularLinearSystem (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B)
 Form a column-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() or Operator::FormRectangularLinearSystem(). More...
 
void FormSystemOperator (const Array< int > &ess_tdof_list, Operator *&A)
 Return in A a parallel (on truedofs) version of this square operator. More...
 
void FormRectangularSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, Operator *&A)
 Return in A a parallel (on truedofs) version of this rectangular operator (including constraints). More...
 
void FormDiscreteOperator (Operator *&A)
 Return in A a parallel (on truedofs) version of this rectangular operator. 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...
 
Type GetType () const
 Return the type ID of the Operator class. More...
 

Protected Attributes

const FiniteElementSpacefes
 
Vector localX
 
Vector localY
 
const Operatorelem_restrict_lex
 
- Protected Attributes inherited from mfem::NonlinearFormExtension
NonlinearFormn
 Not owned. More...
 
- 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  DiagonalPolicy { DIAG_ZERO, DIAG_ONE, DIAG_KEEP }
 Defines operator diagonal policy upon elimination of rows and/or columns. More...
 
enum  Type {
  ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ,
  PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE,
  PETSC_MATGENERIC, Complex_Operator, MFEM_ComplexSparseMat, Complex_Hypre_ParCSR
}
 Enumeration defining IDs for some classes derived from Operator. More...
 
- Protected Member Functions inherited from mfem::Operator
void FormConstrainedSystemOperator (const Array< int > &ess_tdof_list, ConstrainedOperator *&Aout)
 see FormSystemOperator() More...
 
void FormRectangularConstrainedSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, RectangularConstrainedOperator *&Aout)
 see FormRectangularSystemOperator() More...
 
OperatorSetupRAP (const Operator *Pi, const Operator *Po)
 Returns RAP Operator of this, taking in input/output Prolongation matrices. More...
 

Detailed Description

Data and methods for partially-assembled nonlinear forms.

Definition at line 32 of file nonlinearform_ext.hpp.

Constructor & Destructor Documentation

mfem::PANonlinearFormExtension::PANonlinearFormExtension ( NonlinearForm form)

Definition at line 26 of file nonlinearform_ext.cpp.

Member Function Documentation

void mfem::PANonlinearFormExtension::AssemblePA ( )
virtual

Implements mfem::NonlinearFormExtension.

Definition at line 39 of file nonlinearform_ext.cpp.

void mfem::PANonlinearFormExtension::Mult ( const Vector x,
Vector y 
) const
virtual

Operator application: y=A(x).

Implements mfem::Operator.

Definition at line 49 of file nonlinearform_ext.cpp.

Member Data Documentation

const Operator* mfem::PANonlinearFormExtension::elem_restrict_lex
protected

Definition at line 37 of file nonlinearform_ext.hpp.

const FiniteElementSpace& mfem::PANonlinearFormExtension::fes
protected

Definition at line 35 of file nonlinearform_ext.hpp.

Vector mfem::PANonlinearFormExtension::localX
mutableprotected

Definition at line 36 of file nonlinearform_ext.hpp.

Vector mfem::PANonlinearFormExtension::localY
mutableprotected

Definition at line 36 of file nonlinearform_ext.hpp.


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