Flexible GMRES solver in hypre. More...

#include <hypre.hpp>

Inheritance diagram for mfem::HypreFGMRES:

Collaboration diagram for mfem::HypreFGMRES:

Public Member Functions
	HypreFGMRES (MPI_Comm comm)

	HypreFGMRES (const HypreParMatrix &A_)

virtual void	SetOperator (const Operator &op)
	Set/update the solver for the given operator. More...

void	SetTol (double tol)

void	SetMaxIter (int max_iter)

void	SetKDim (int dim)

void	SetLogging (int logging)

void	SetPrintLevel (int print_lvl)

void	SetPreconditioner (HypreSolver &precond)
	Set the hypre solver to be used as a preconditioner. More...

MFEM_DEPRECATED void	SetZeroInintialIterate ()
	deprecated: use SetZeroInitialIterate() More...

void	SetZeroInitialIterate ()
	non-hypre setting More...

void	GetNumIterations (int &num_iterations) const

void	GetFinalResidualNorm (double &final_res_norm) const

virtual	operator HYPRE_Solver () const
	The typecast to HYPRE_Solver returns the internal fgmres_solver. More...

virtual HYPRE_PtrToParSolverFcn	SetupFcn () const
	FGMRES Setup function. More...

virtual HYPRE_PtrToParSolverFcn	SolveFcn () const
	FGMRES Solve function. More...

virtual void	Mult (const HypreParVector &b, HypreParVector &x) const
	Solve Ax=b with hypre's FGMRES. More...

virtual	~HypreFGMRES ()

virtual void	Mult (const HypreParVector &b, HypreParVector &x) const
	Solve the linear system Ax=b. More...

virtual void	Mult (const Vector &b, Vector &x) const
	Solve the linear system Ax=b. More...

virtual void	Mult (const Vector &x, Vector &y) const =0
	Operator application: `y=A(x)`. More...

Public Member Functions inherited from mfem::HypreSolver
	HypreSolver ()

	HypreSolver (const HypreParMatrix *A_)

virtual MemoryClass	GetMemoryClass () const
	Return the MemoryClass preferred by the Operator. More...

void	SetErrorMode (ErrorMode err_mode) const
	Set the behavior for treating hypre errors, see the ErrorMode enum. The default mode in the base class is ABORT_HYPRE_ERRORS. More...

virtual	~HypreSolver ()

virtual void	Setup (const HypreParVector &b, HypreParVector &x) const
	Set up the solver (if not set up already, also called automatically by HypreSolver::Mult). More...

virtual void	Setup (const Vector &b, Vector &x) const
	Set up the solver (if not set up already, also called automatically by HypreSolver::Mult). More...

virtual void	Mult (const Vector &b, Vector &x) const
	Solve the linear system Ax=b. More...

virtual void	Mult (const Vector &x, Vector &y) const=0
	Operator application: `y=A(x)`. More...

Public Member Functions inherited from mfem::Solver
	Solver (int s=0, bool iter_mode=false)
	Initialize a square Solver with size s. More...

	Solver (int h, int w, bool iter_mode=false)
	Initialize a Solver with height h and width w. 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 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 void	AddMult (const Vector &x, Vector &y, const double a=1.0) const
	Operator application: `y+=A(x)` (default) or `y+=a*A(x)`. More...

virtual void	AddMultTranspose (const Vector &x, Vector &y, const double a=1.0) const
	Operator transpose application: `y+=A^t(x)` (default) or `y+=a*A^t(x)`. More...

virtual void	ArrayMult (const Array< const Vector > &X, Array< Vector > &Y) const
	Operator application on a matrix: `Y=A(X)`. More...

virtual void	ArrayMultTranspose (const Array< const Vector > &X, Array< Vector > &Y) const
	Action of the transpose operator on a matrix: `Y=A^t(X)`. More...

virtual void	ArrayAddMult (const Array< const Vector > &X, Array< Vector > &Y, const double a=1.0) const
	Operator application on a matrix: `Y+=A(X)` (default) or `Y+=a*A(X)`. More...

virtual void	ArrayAddMultTranspose (const Array< const Vector > &X, Array< Vector > &Y, const double a=1.0) const
	Operator transpose application on a matrix: `Y+=A^t(X)` (default) or `Y+=a*A^t(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...

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. 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...

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

virtual const Operator *	GetOutputRestrictionTranspose () const
	Transpose of GetOutputRestriction, directly available in this form to facilitate matrix-free RAP-type operators. More...

virtual const Operator *	GetOutputRestriction () 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, int m=0) const
	Prints operator with input size n and output size m in Matlab format. More...

virtual void	PrintMatlab (std::ostream &out) const
	Prints operator in Matlab format. More...

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

Type	GetType () const
	Return the type ID of the Operator class. More...

Additional Inherited Members
Public Types inherited from mfem::HypreSolver
enum	ErrorMode { IGNORE_HYPRE_ERRORS, WARN_HYPRE_ERRORS, ABORT_HYPRE_ERRORS }
	How to treat errors returned by hypre function calls. More...

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...

Public Attributes inherited from mfem::Solver
bool	iterative_mode
	If true, use the second argument of Mult() as an initial guess. More...

Protected Member Functions inherited from mfem::HypreSolver
bool	WrapVectors (const Vector &b, Vector &x) const
	Makes the internal HypreParVectors B and X wrap the input vectors b and x. 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...

Operator *	SetupRAP (const Operator Pi, const Operator Po)
	Returns RAP Operator of this, using input/output Prolongation matrices Pi corresponds to "P", Po corresponds to "Rt". More...

Protected Attributes inherited from mfem::HypreSolver
const HypreParMatrix *	A
	The linear system matrix. More...

HypreParVector *	B
	Right-hand side and solution vector. More...

HypreParVector *	X

Memory< double >	auxB

Memory< double >	auxX

int	setup_called
	Was hypre's Setup function called already? More...

ErrorMode	error_mode
	How to treat hypre errors. 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...

Detailed Description

Flexible GMRES solver in hypre.

Definition at line 1344 of file hypre.hpp.

Constructor & Destructor Documentation

◆ HypreFGMRES() [1/2]

mfem::HypreFGMRES::HypreFGMRES ( MPI_Comm comm )

Definition at line 4299 of file hypre.cpp.

◆ HypreFGMRES() [2/2]

mfem::HypreFGMRES::HypreFGMRES ( const HypreParMatrix & A_ )

Definition at line 4307 of file hypre.cpp.

◆ ~HypreFGMRES()

mfem::HypreFGMRES::~HypreFGMRES ( )

virtual

Definition at line 4459 of file hypre.cpp.

Member Function Documentation

◆ GetFinalResidualNorm()

void mfem::HypreFGMRES::GetFinalResidualNorm ( double & final_res_norm ) const

inline

Definition at line 1383 of file hypre.hpp.

◆ GetNumIterations()

void mfem::HypreFGMRES::GetNumIterations ( int & num_iterations ) const

inline

Definition at line 1376 of file hypre.hpp.

◆ Mult() [1/4]

void mfem::HypreFGMRES::Mult	(	const HypreParVector &	b,
		HypreParVector &	x
	)		const

virtual

Solve Ax=b with hypre's FGMRES.

Reimplemented from mfem::HypreSolver.

Definition at line 4387 of file hypre.cpp.

◆ Mult() [2/4]

void mfem::HypreSolver::Mult

Solve the linear system Ax=b.

Definition at line 3907 of file hypre.cpp.

◆ Mult() [3/4]

void mfem::HypreSolver::Mult

Solve the linear system Ax=b.

Definition at line 3940 of file hypre.cpp.

◆ Mult() [4/4]

virtual void mfem::Operator::Mult

Operator application: y=A(x).

◆ operator HYPRE_Solver()

virtual mfem::HypreFGMRES::operator HYPRE_Solver ( ) const

inlinevirtual

The typecast to HYPRE_Solver returns the internal fgmres_solver.

Implements mfem::HypreSolver.

Definition at line 1390 of file hypre.hpp.

◆ SetKDim()

void mfem::HypreFGMRES::SetKDim ( int dim )

Definition at line 4363 of file hypre.cpp.

◆ SetLogging()

void mfem::HypreFGMRES::SetLogging ( int logging )

Definition at line 4368 of file hypre.cpp.

◆ SetMaxIter()

void mfem::HypreFGMRES::SetMaxIter ( int max_iter )

Definition at line 4358 of file hypre.cpp.

◆ SetOperator()

void mfem::HypreFGMRES::SetOperator ( const Operator & op )

virtual

Set/update the solver for the given operator.

Reimplemented from mfem::HypreSolver.

Definition at line 4331 of file hypre.cpp.

◆ SetPreconditioner()

void mfem::HypreFGMRES::SetPreconditioner ( HypreSolver & precond )

Set the hypre solver to be used as a preconditioner.

Definition at line 4378 of file hypre.cpp.

◆ SetPrintLevel()

void mfem::HypreFGMRES::SetPrintLevel ( int print_lvl )

Definition at line 4373 of file hypre.cpp.

◆ SetTol()

void mfem::HypreFGMRES::SetTol ( double tol )

Definition at line 4353 of file hypre.cpp.

◆ SetupFcn()

virtual HYPRE_PtrToParSolverFcn mfem::HypreFGMRES::SetupFcn ( ) const

inlinevirtual

FGMRES Setup function.

Implements mfem::HypreSolver.

Definition at line 1393 of file hypre.hpp.

◆ SetZeroInintialIterate()

MFEM_DEPRECATED void mfem::HypreFGMRES::SetZeroInintialIterate ( )

inline

deprecated: use SetZeroInitialIterate()

Definition at line 1371 of file hypre.hpp.

◆ SetZeroInitialIterate()

void mfem::HypreFGMRES::SetZeroInitialIterate ( )

inline

non-hypre setting

Definition at line 1374 of file hypre.hpp.

◆ SolveFcn()

virtual HYPRE_PtrToParSolverFcn mfem::HypreFGMRES::SolveFcn ( ) const

inlinevirtual

FGMRES Solve function.

Implements mfem::HypreSolver.

Definition at line 1396 of file hypre.hpp.

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

linalg/hypre.hpp
linalg/hypre.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ HypreFGMRES() [1/2]

◆ HypreFGMRES() [2/2]

◆ ~HypreFGMRES()

Member Function Documentation

◆ GetFinalResidualNorm()

◆ GetNumIterations()

◆ Mult() [1/4]

◆ Mult() [2/4]

◆ Mult() [3/4]

◆ Mult() [4/4]

◆ operator HYPRE_Solver()

◆ SetKDim()

◆ SetLogging()

◆ SetMaxIter()

◆ SetOperator()

◆ SetPreconditioner()

◆ SetPrintLevel()

◆ SetTol()

◆ SetupFcn()

◆ SetZeroInintialIterate()

◆ SetZeroInitialIterate()

◆ SolveFcn()