PCG solver in hypre. More...

#include <hypre.hpp>

Inheritance diagram for mfem::HyprePCG:

Collaboration diagram for mfem::HyprePCG:

Public Member Functions
	HyprePCG (HypreParMatrix &_A)

void	SetTol (double tol)

void	SetMaxIter (int max_iter)

void	SetLogging (int logging)

void	SetPrintLevel (int print_lvl)

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

void	SetResidualConvergenceOptions (int res_frequency=-1, double rtol=0.0)

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

void	GetNumIterations (int &num_iterations)

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

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

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

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

virtual	~HyprePCG ()

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

	HypreSolver (HypreParMatrix *_A)

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

virtual void	Mult (const Vector &b, Vector &x) const
	Operator application. More...

virtual	~HypreSolver ()

Public Member Functions inherited from mfem::Solver
	Solver (int s=0, bool iter_mode=false)

	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
	Operator (int s=0)
	Construct a square Operator with given size s (default 0) More...

	Operator (int h, int w)

int	Height () const
	Get the height (size of output) of the Operator. Synonym with NumRows. More...

int	NumRows () const

int	Width () const
	Get the width (size of input) of the Operator. Synonym with NumCols. More...

int	NumCols () const

virtual void	MultTranspose (const Vector &x, Vector &y) const
	Action of the transpose operator. More...

virtual Operator &	GetGradient (const Vector &x) const
	Evaluate the gradient operator at the point x. 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 ()

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

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

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

HypreParVector *	X

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

Protected Attributes inherited from mfem::Operator
int	height

int	width

Detailed Description

PCG solver in hypre.

Definition at line 565 of file hypre.hpp.

Constructor & Destructor Documentation

mfem::HyprePCG::HyprePCG ( HypreParMatrix & _A )

Definition at line 1953 of file hypre.cpp.

mfem::HyprePCG::~HyprePCG ( )

virtual

Definition at line 2078 of file hypre.cpp.

Member Function Documentation

void mfem::HyprePCG::GetNumIterations ( int & num_iterations )

inline

Definition at line 589 of file hypre.hpp.

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

virtual

Solve Ax=b with hypre's PCG.

Reimplemented from mfem::HypreSolver.

Definition at line 2005 of file hypre.cpp.

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

inlinevirtual

The typecast to HYPRE_Solver returns the internal pcg_solver.

Implements mfem::HypreSolver.

Definition at line 597 of file hypre.hpp.

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

Definition at line 1974 of file hypre.cpp.

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

Definition at line 1969 of file hypre.cpp.

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

Set the hypre solver to be used as a preconditioner.

Definition at line 1984 of file hypre.cpp.

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

Definition at line 1979 of file hypre.cpp.

void mfem::HyprePCG::SetResidualConvergenceOptions	(	int	res_frequency = `-1`,
		double	rtol = `0.0`
	)

Use the L2 norm of the residual for measuring PCG convergence, plus (optionally) 1) periodically recompute true residuals from scratch; and 2) enable residual-based stopping criteria.

Definition at line 1992 of file hypre.cpp.

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

Definition at line 1964 of file hypre.cpp.

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

inlinevirtual

PCG Setup function.

Implements mfem::HypreSolver.

Definition at line 600 of file hypre.hpp.

void mfem::HyprePCG::SetZeroInintialIterate ( )

inline

non-hypre setting

Definition at line 587 of file hypre.hpp.

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

inlinevirtual

PCG Solve function.

Implements mfem::HypreSolver.

Definition at line 603 of file hypre.hpp.

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

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation