MFEM
v3.4
Finite element discretization library
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#include <pbilinearform.hpp>
Public Member Functions | |
ParDiscreteLinearOperator (ParFiniteElementSpace *dfes, ParFiniteElementSpace *rfes) | |
HypreParMatrix * | ParallelAssemble () const |
Returns the matrix "assembled" on the true dofs. More... | |
void | GetParBlocks (Array2D< HypreParMatrix * > &blocks) const |
virtual | ~ParDiscreteLinearOperator () |
Public Member Functions inherited from mfem::DiscreteLinearOperator | |
DiscreteLinearOperator (FiniteElementSpace *domain_fes, FiniteElementSpace *range_fes) | |
void | AddDomainInterpolator (DiscreteInterpolator *di) |
void | AddTraceFaceInterpolator (DiscreteInterpolator *di) |
Array< BilinearFormIntegrator * > * | GetDI () |
virtual void | Assemble (int skip_zeros=1) |
Public Member Functions inherited from mfem::MixedBilinearForm | |
MixedBilinearForm (FiniteElementSpace *tr_fes, FiniteElementSpace *te_fes) | |
virtual double & | Elem (int i, int j) |
Returns reference to a_{ij}. More... | |
virtual const double & | Elem (int i, int j) const |
Returns constant reference to a_{ij}. More... | |
virtual void | Mult (const Vector &x, Vector &y) const |
Operator application: y=A(x) . More... | |
virtual void | AddMult (const Vector &x, Vector &y, const double a=1.0) const |
virtual void | AddMultTranspose (const Vector &x, Vector &y, const double a=1.0) const |
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 MatrixInverse * | Inverse () const |
Returns a pointer to (an approximation) of the matrix inverse. More... | |
virtual void | Finalize (int skip_zeros=1) |
Finalizes the matrix initialization. More... | |
void | GetBlocks (Array2D< SparseMatrix * > &blocks) const |
const SparseMatrix & | SpMat () const |
SparseMatrix & | SpMat () |
SparseMatrix * | LoseMat () |
void | AddDomainIntegrator (BilinearFormIntegrator *bfi) |
void | AddBoundaryIntegrator (BilinearFormIntegrator *bfi) |
void | AddTraceFaceIntegrator (BilinearFormIntegrator *bfi) |
Array< BilinearFormIntegrator * > * | GetDBFI () |
Array< BilinearFormIntegrator * > * | GetBBFI () |
Array< BilinearFormIntegrator * > * | GetTFBFI () |
void | operator= (const double a) |
void | Assemble (int skip_zeros=1) |
void | ConformingAssemble () |
void | EliminateTrialDofs (Array< int > &bdr_attr_is_ess, const Vector &sol, Vector &rhs) |
void | EliminateEssentialBCFromTrialDofs (Array< int > &marked_vdofs, const Vector &sol, Vector &rhs) |
virtual void | EliminateTestDofs (Array< int > &bdr_attr_is_ess) |
void | Update () |
virtual | ~MixedBilinearForm () |
Public Member Functions inherited from mfem::Matrix | |
Matrix (int s) | |
Creates a square matrix of size s. More... | |
Matrix (int h, int w) | |
Creates a matrix of the given height and width. More... | |
virtual void | Print (std::ostream &out=mfem::out, int width_=4) const |
Prints matrix to stream out. More... | |
virtual | ~Matrix () |
Destroys matrix. More... | |
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 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... | |
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... | |
Type | GetType () const |
Return the type ID of the Operator class. More... | |
Protected Attributes | |
ParFiniteElementSpace * | domain_fes |
ParFiniteElementSpace * | range_fes |
Protected Attributes inherited from mfem::MixedBilinearForm | |
SparseMatrix * | mat |
FiniteElementSpace * | trial_fes |
FiniteElementSpace * | test_fes |
Array< BilinearFormIntegrator * > | dom |
Array< BilinearFormIntegrator * > | bdr |
Array< BilinearFormIntegrator * > | skt |
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::Matrix | |
enum | DiagonalPolicy { DIAG_ZERO, DIAG_ONE, DIAG_KEEP } |
Public Types inherited from mfem::Operator | |
enum | Type { ANY_TYPE, MFEM_SPARSEMAT, Hypre_ParCSR, PETSC_MATAIJ, PETSC_MATIS, PETSC_MATSHELL, PETSC_MATNEST, PETSC_MATHYPRE, PETSC_MATGENERIC } |
Enumeration defining IDs for some classes derived from Operator. More... | |
The parallel matrix representation a linear operator between parallel finite element spaces
Definition at line 251 of file pbilinearform.hpp.
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inline |
Definition at line 258 of file pbilinearform.hpp.
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inlinevirtual |
Definition at line 269 of file pbilinearform.hpp.
void mfem::ParDiscreteLinearOperator::GetParBlocks | ( | Array2D< HypreParMatrix * > & | blocks | ) | const |
Extract the parallel blocks corresponding to the vector dimensions of the domain and range parallel finite element spaces
Definition at line 479 of file pbilinearform.cpp.
HypreParMatrix * mfem::ParDiscreteLinearOperator::ParallelAssemble | ( | ) | const |
Returns the matrix "assembled" on the true dofs.
Definition at line 468 of file pbilinearform.cpp.
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protected |
Definition at line 254 of file pbilinearform.hpp.
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protected |
Definition at line 255 of file pbilinearform.hpp.