MFEM  v4.2.0
Finite element discretization library
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Pages
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
mfem::PABilinearFormExtension Class Reference

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

#include <bilinearform_ext.hpp>

Inheritance diagram for mfem::PABilinearFormExtension:
[legend]
Collaboration diagram for mfem::PABilinearFormExtension:
[legend]

Public Member Functions

 PABilinearFormExtension (BilinearForm *)
 
void Assemble ()
 Assemble at the level given for the BilinearFormExtension subclass. More...
 
void AssembleDiagonal (Vector &diag) const
 
void FormSystemMatrix (const Array< int > &ess_tdof_list, OperatorHandle &A)
 
void FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, OperatorHandle &A, Vector &X, Vector &B, int copy_interior=0)
 
void Mult (const Vector &x, Vector &y) const
 Operator application: y=A(x). More...
 
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...
 
void Update ()
 
- Public Member Functions inherited from mfem::BilinearFormExtension
 BilinearFormExtension (BilinearForm *form)
 
virtual MemoryClass GetMemoryClass () const
 Return the MemoryClass preferred by the Operator. More...
 
virtual const OperatorGetProlongation () const
 Get the finite element space prolongation matrix. More...
 
virtual const OperatorGetRestriction () const
 Get the finite element space restriction matrix. More...
 
- 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 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 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 Member Functions

void SetupRestrictionOperators (const L2FaceValues m)
 
- 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...
 

Protected Attributes

const FiniteElementSpacetrialFes
 
const FiniteElementSpacetestFes
 
Vector localX
 
Vector localY
 
Vector faceIntX
 
Vector faceIntY
 
Vector faceBdrX
 
Vector faceBdrY
 
const Operatorelem_restrict
 
const Operatorint_face_restrict_lex
 
const Operatorbdr_face_restrict_lex
 
- Protected Attributes inherited from mfem::BilinearFormExtension
BilinearForma
 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...
 

Detailed Description

Data and methods for partially-assembled bilinear forms.

Definition at line 66 of file bilinearform_ext.hpp.

Constructor & Destructor Documentation

mfem::PABilinearFormExtension::PABilinearFormExtension ( BilinearForm form)

Definition at line 241 of file bilinearform_ext.cpp.

Member Function Documentation

void mfem::PABilinearFormExtension::Assemble ( )
virtual

Assemble at the level given for the BilinearFormExtension subclass.

Implements mfem::BilinearFormExtension.

Reimplemented in mfem::FABilinearFormExtension, and mfem::EABilinearFormExtension.

Definition at line 288 of file bilinearform_ext.cpp.

void mfem::PABilinearFormExtension::AssembleDiagonal ( Vector diag) const
virtual

Reimplemented from mfem::BilinearFormExtension.

Definition at line 317 of file bilinearform_ext.cpp.

void mfem::PABilinearFormExtension::FormLinearSystem ( const Array< int > &  ess_tdof_list,
Vector x,
Vector b,
OperatorHandle A,
Vector X,
Vector B,
int  copy_interior = 0 
)
virtual

Implements mfem::BilinearFormExtension.

Definition at line 371 of file bilinearform_ext.cpp.

void mfem::PABilinearFormExtension::FormSystemMatrix ( const Array< int > &  ess_tdof_list,
OperatorHandle A 
)
virtual

Implements mfem::BilinearFormExtension.

Definition at line 363 of file bilinearform_ext.cpp.

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

Operator application: y=A(x).

Implements mfem::Operator.

Reimplemented in mfem::FABilinearFormExtension, and mfem::EABilinearFormExtension.

Definition at line 382 of file bilinearform_ext.cpp.

void mfem::PABilinearFormExtension::MultTranspose ( const Vector x,
Vector y 
) const
virtual

Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error.

Reimplemented from mfem::Operator.

Reimplemented in mfem::FABilinearFormExtension, and mfem::EABilinearFormExtension.

Definition at line 440 of file bilinearform_ext.cpp.

void mfem::PABilinearFormExtension::SetupRestrictionOperators ( const L2FaceValues  m)
protected

Definition at line 251 of file bilinearform_ext.cpp.

void mfem::PABilinearFormExtension::Update ( )
virtual

Implements mfem::BilinearFormExtension.

Definition at line 351 of file bilinearform_ext.cpp.

Member Data Documentation

const Operator* mfem::PABilinearFormExtension::bdr_face_restrict_lex
protected

Definition at line 75 of file bilinearform_ext.hpp.

const Operator* mfem::PABilinearFormExtension::elem_restrict
protected

Definition at line 73 of file bilinearform_ext.hpp.

Vector mfem::PABilinearFormExtension::faceBdrX
mutableprotected

Definition at line 72 of file bilinearform_ext.hpp.

Vector mfem::PABilinearFormExtension::faceBdrY
mutableprotected

Definition at line 72 of file bilinearform_ext.hpp.

Vector mfem::PABilinearFormExtension::faceIntX
mutableprotected

Definition at line 71 of file bilinearform_ext.hpp.

Vector mfem::PABilinearFormExtension::faceIntY
mutableprotected

Definition at line 71 of file bilinearform_ext.hpp.

const Operator* mfem::PABilinearFormExtension::int_face_restrict_lex
protected

Definition at line 74 of file bilinearform_ext.hpp.

Vector mfem::PABilinearFormExtension::localX
mutableprotected

Definition at line 70 of file bilinearform_ext.hpp.

Vector mfem::PABilinearFormExtension::localY
mutableprotected

Definition at line 70 of file bilinearform_ext.hpp.

const FiniteElementSpace * mfem::PABilinearFormExtension::testFes
protected

Definition at line 69 of file bilinearform_ext.hpp.

const FiniteElementSpace* mfem::PABilinearFormExtension::trialFes
protected

Definition at line 69 of file bilinearform_ext.hpp.


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