Preconditioner< T > Class Template Reference

Base class for conjugate gradient preconditioners. More...

#include <openvdb/math/ConjGradient.h>

Public Types
using	ValueType = T
using	Ptr = SharedPtr< Preconditioner >

Public Member Functions
template<SizeType STENCIL_SIZE>
	Preconditioner (const SparseStencilMatrix< T, STENCIL_SIZE > &)
virtual	~Preconditioner ()=default
virtual bool	isValid () const
virtual void	apply (const Vector< T > &r, Vector< T > &z)=0
	Apply this preconditioner to a residue vector: z = M−1r More...

Detailed Description

template<typename T>
class openvdb::v12_0::math::pcg::Preconditioner< T >

Base class for conjugate gradient preconditioners.

Member Typedef Documentation

using Ptr = SharedPtr<Preconditioner>

using ValueType = T

Constructor & Destructor Documentation

Preconditioner ( const SparseStencilMatrix< T, STENCIL_SIZE > &  )

inline

virtual ~Preconditioner ( )

virtualdefault

Member Function Documentation

virtual void apply ( const Vector< T > &  r, Vector< T > &  z  )

pure virtual

Apply this preconditioner to a residue vector: z = M⁻¹r

Parameters

	r	residue vector
[out]	z	preconditioned residue vector

Implemented in IncompleteCholeskyPreconditioner< MatrixType >, and JacobiPreconditioner< MatrixType >.

virtual bool isValid ( ) const

inlinevirtual

Reimplemented in IncompleteCholeskyPreconditioner< MatrixType >.