MFEM v4.7.0
Finite element discretization library
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mfem::DeviceConformingProlongationOperator Class Reference

Auxiliary device class used by ParFiniteElementSpace. More...

#include <pfespace.hpp>

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

 DeviceConformingProlongationOperator (const GroupCommunicator &gc_, const SparseMatrix *R, bool local_=false)
 
 DeviceConformingProlongationOperator (const ParFiniteElementSpace &pfes, bool local_=false)
 
virtual ~DeviceConformingProlongationOperator ()
 
void Mult (const Vector &x, Vector &y) const override
 Operator application: y=A(x).
 
void MultTranspose (const Vector &x, Vector &y) const override
 Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error.
 
- Public Member Functions inherited from mfem::ConformingProlongationOperator
 ConformingProlongationOperator (int lsize, const GroupCommunicator &gc_, bool local_=false)
 
 ConformingProlongationOperator (const ParFiniteElementSpace &pfes, bool local_=false)
 
const GroupCommunicatorGetGroupCommunicator () const
 
- 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.
 
 Operator (int s=0)
 Construct a square Operator with given size s (default 0).
 
 Operator (int h, int w)
 Construct an Operator with the given height (output size) and width (input size).
 
int Height () const
 Get the height (size of output) of the Operator. Synonym with NumRows().
 
int NumRows () const
 Get the number of rows (size of output) of the Operator. Synonym with Height().
 
int Width () const
 Get the width (size of input) of the Operator. Synonym with NumCols().
 
int NumCols () const
 Get the number of columns (size of input) of the Operator. Synonym with Width().
 
virtual MemoryClass GetMemoryClass () const
 Return the MemoryClass preferred by the Operator.
 
virtual void AddMult (const Vector &x, Vector &y, const real_t a=1.0) const
 Operator application: y+=A(x) (default) or y+=a*A(x).
 
virtual void AddMultTranspose (const Vector &x, Vector &y, const real_t a=1.0) const
 Operator transpose application: y+=A^t(x) (default) or y+=a*A^t(x).
 
virtual void ArrayMult (const Array< const Vector * > &X, Array< Vector * > &Y) const
 Operator application on a matrix: Y=A(X).
 
virtual void ArrayMultTranspose (const Array< const Vector * > &X, Array< Vector * > &Y) const
 Action of the transpose operator on a matrix: Y=A^t(X).
 
virtual void ArrayAddMult (const Array< const Vector * > &X, Array< Vector * > &Y, const real_t a=1.0) const
 Operator application on a matrix: Y+=A(X) (default) or Y+=a*A(X).
 
virtual void ArrayAddMultTranspose (const Array< const Vector * > &X, Array< Vector * > &Y, const real_t a=1.0) const
 Operator transpose application on a matrix: Y+=A^t(X) (default) or Y+=a*A^t(X).
 
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.
 
virtual void AssembleDiagonal (Vector &diag) const
 Computes the diagonal entries into diag. Typically, this operation only makes sense for linear Operators. In some cases, only an approximation of the diagonal is computed.
 
virtual const OperatorGetProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity.
 
virtual const OperatorGetRestriction () const
 Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity.
 
virtual const OperatorGetOutputProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to output vectors for the operator. NULL means identity.
 
virtual const OperatorGetOutputRestrictionTranspose () const
 Transpose of GetOutputRestriction, directly available in this form to facilitate matrix-free RAP-type operators.
 
virtual const OperatorGetOutputRestriction () const
 Restriction operator from output vectors for the operator to linear algebra (linear system) vectors. NULL means identity.
 
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.
 
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.
 
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().
 
void FormSystemOperator (const Array< int > &ess_tdof_list, Operator *&A)
 Return in A a parallel (on truedofs) version of this square operator.
 
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).
 
void FormDiscreteOperator (Operator *&A)
 Return in A a parallel (on truedofs) version of this rectangular operator.
 
void PrintMatlab (std::ostream &out, int n, int m=0) const
 Prints operator with input size n and output size m in Matlab format.
 
virtual void PrintMatlab (std::ostream &out) const
 Prints operator in Matlab format.
 
virtual ~Operator ()
 Virtual destructor.
 
Type GetType () const
 Return the type ID of the Operator class.
 

Protected Member Functions

void BcastBeginCopy (const Vector &src) const
 
void BcastLocalCopy (const Vector &src, Vector &dst) const
 
void BcastEndCopy (Vector &dst) const
 
void ReduceBeginCopy (const Vector &src) const
 
void ReduceLocalCopy (const Vector &src, Vector &dst) const
 
void ReduceEndAssemble (Vector &dst) const
 
- Protected Member Functions inherited from mfem::Operator
void FormConstrainedSystemOperator (const Array< int > &ess_tdof_list, ConstrainedOperator *&Aout)
 see FormSystemOperator()
 
void FormRectangularConstrainedSystemOperator (const Array< int > &trial_tdof_list, const Array< int > &test_tdof_list, RectangularConstrainedOperator *&Aout)
 see FormRectangularSystemOperator()
 
OperatorSetupRAP (const Operator *Pi, const Operator *Po)
 Returns RAP Operator of this, using input/output Prolongation matrices Pi corresponds to "P", Po corresponds to "Rt".
 

Protected Attributes

bool mpi_gpu_aware
 
Array< int > shr_ltdof
 
Array< int > ext_ldof
 
Vector shr_buf
 
Vector ext_buf
 
Memory< int > shr_buf_offsets
 
Memory< int > ext_buf_offsets
 
Array< int > ltdof_ldof
 
Array< int > unq_ltdof
 
Array< int > unq_shr_i
 
Array< int > unq_shr_j
 
MPI_Request * requests
 
- Protected Attributes inherited from mfem::ConformingProlongationOperator
Array< int > external_ldofs
 
const GroupCommunicatorgc
 
bool local
 
- Protected Attributes inherited from mfem::Operator
int height
 Dimension of the output / number of rows in the matrix.
 
int width
 Dimension of the input / number of columns in the matrix.
 

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 ,
  Complex_DenseMat , MFEM_Block_Matrix , MFEM_Block_Operator
}
 Enumeration defining IDs for some classes derived from Operator. More...
 

Detailed Description

Auxiliary device class used by ParFiniteElementSpace.

Definition at line 463 of file pfespace.hpp.

Constructor & Destructor Documentation

◆ DeviceConformingProlongationOperator() [1/2]

mfem::DeviceConformingProlongationOperator::DeviceConformingProlongationOperator ( const GroupCommunicator & gc_,
const SparseMatrix * R,
bool local_ = false )

Definition at line 3665 of file pfespace.cpp.

◆ DeviceConformingProlongationOperator() [2/2]

mfem::DeviceConformingProlongationOperator::DeviceConformingProlongationOperator ( const ParFiniteElementSpace & pfes,
bool local_ = false )

Definition at line 3731 of file pfespace.cpp.

◆ ~DeviceConformingProlongationOperator()

mfem::DeviceConformingProlongationOperator::~DeviceConformingProlongationOperator ( )
virtual

Definition at line 3843 of file pfespace.cpp.

Member Function Documentation

◆ BcastBeginCopy()

void mfem::DeviceConformingProlongationOperator::BcastBeginCopy ( const Vector & src) const
protected

Definition at line 3754 of file pfespace.cpp.

◆ BcastEndCopy()

void mfem::DeviceConformingProlongationOperator::BcastEndCopy ( Vector & dst) const
protected

Definition at line 3787 of file pfespace.cpp.

◆ BcastLocalCopy()

void mfem::DeviceConformingProlongationOperator::BcastLocalCopy ( const Vector & src,
Vector & dst ) const
protected

Definition at line 3779 of file pfespace.cpp.

◆ Mult()

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

Operator application: y=A(x).

Reimplemented from mfem::ConformingProlongationOperator.

Definition at line 3795 of file pfespace.cpp.

◆ MultTranspose()

void mfem::DeviceConformingProlongationOperator::MultTranspose ( const Vector & x,
Vector & y ) const
overridevirtual

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

Reimplemented from mfem::ConformingProlongationOperator.

Definition at line 3897 of file pfespace.cpp.

◆ ReduceBeginCopy()

void mfem::DeviceConformingProlongationOperator::ReduceBeginCopy ( const Vector & src) const
protected

Definition at line 3850 of file pfespace.cpp.

◆ ReduceEndAssemble()

void mfem::DeviceConformingProlongationOperator::ReduceEndAssemble ( Vector & dst) const
protected

Definition at line 3890 of file pfespace.cpp.

◆ ReduceLocalCopy()

void mfem::DeviceConformingProlongationOperator::ReduceLocalCopy ( const Vector & src,
Vector & dst ) const
protected

Definition at line 3861 of file pfespace.cpp.

Member Data Documentation

◆ ext_buf

Vector mfem::DeviceConformingProlongationOperator::ext_buf
protected

Definition at line 469 of file pfespace.hpp.

◆ ext_buf_offsets

Memory<int> mfem::DeviceConformingProlongationOperator::ext_buf_offsets
protected

Definition at line 470 of file pfespace.hpp.

◆ ext_ldof

Array<int> mfem::DeviceConformingProlongationOperator::ext_ldof
protected

Definition at line 468 of file pfespace.hpp.

◆ ltdof_ldof

Array<int> mfem::DeviceConformingProlongationOperator::ltdof_ldof
protected

Definition at line 471 of file pfespace.hpp.

◆ mpi_gpu_aware

bool mfem::DeviceConformingProlongationOperator::mpi_gpu_aware
protected

Definition at line 467 of file pfespace.hpp.

◆ requests

MPI_Request* mfem::DeviceConformingProlongationOperator::requests
protected

Definition at line 473 of file pfespace.hpp.

◆ shr_buf

Vector mfem::DeviceConformingProlongationOperator::shr_buf
mutableprotected

Definition at line 469 of file pfespace.hpp.

◆ shr_buf_offsets

Memory<int> mfem::DeviceConformingProlongationOperator::shr_buf_offsets
protected

Definition at line 470 of file pfespace.hpp.

◆ shr_ltdof

Array<int> mfem::DeviceConformingProlongationOperator::shr_ltdof
protected

Definition at line 468 of file pfespace.hpp.

◆ unq_ltdof

Array<int> mfem::DeviceConformingProlongationOperator::unq_ltdof
protected

Definition at line 471 of file pfespace.hpp.

◆ unq_shr_i

Array<int> mfem::DeviceConformingProlongationOperator::unq_shr_i
protected

Definition at line 472 of file pfespace.hpp.

◆ unq_shr_j

Array<int> mfem::DeviceConformingProlongationOperator::unq_shr_j
protected

Definition at line 472 of file pfespace.hpp.


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