Chroma::lg5eps Class Reference

Internal Overlap-pole operator. More...

#include <lg5eps_w.h>

Inheritance diagram for Chroma::lg5eps:

Public Types
typedef LatticeFermion	T
typedef multi1d< LatticeColorMatrix >	P
typedef multi1d< LatticeColorMatrix >	Q

Public Member Functions
	lg5eps (const UnprecWilsonTypeFermAct< T, P, Q > &S_aux, Handle< FermState< T, P, Q > > state, int _numroot, const Real &_constP, const multi1d< Real > &_resP, const multi1d< Real > &_rootQ, int _NEig, const multi1d< Real > &_EigValFunc, const multi1d< LatticeFermion > &_EigVec, int _MaxCG, const Real &_RsdCG, const int _ReorthFreq)
	Creation routine. More...
	~lg5eps ()
	Destructor is automatic. More...
const Subset &	subset () const
	Only defined on the entire lattice. More...
void	operator() (LatticeFermion &chi, const LatticeFermion &psi, enum PlusMinus isign) const
	Apply the operator onto a source std::vector. More...
void	operator() (LatticeFermion &chi, const LatticeFermion &psi, enum PlusMinus isign, Real epsilon) const
	Apply the operator onto a source std::vector. Here epsilon is the. More...
Public Member Functions inherited from Chroma::LinearOperator< LatticeFermion >
virtual	~LinearOperator ()
	Virtual destructor to help with cleanup;. More...
virtual unsigned long	nFlops () const

Private Attributes
Handle< const LinearOperator< LatticeFermion > >	M
Handle< const LinearOperator< LatticeFermion > >	MdagM
int	numroot
const Real	constP
const multi1d< Real >	resP
const multi1d< Real >	rootQ
const multi1d< LatticeFermion >	EigVec
const multi1d< Real >	EigValFunc
int	NEig
int	MaxCG
const Real	RsdCG
const int	ReorthFreq

Detailed Description

Internal Overlap-pole operator.

This routine is specific to Wilson fermions!

Chi = gamma_5 * B . Psi where B is the pole approx. to eps(H(m))

Internally, it computes Chi = gamma_5 * B . Psi and then rescales at the end to the correct normalization

NOTE: B is hermitian, so
(1 + gamma_5 * B)^dag = (1 + B * gamma_5) = gamma_5 * (1 + gamma_5 * B) * gamma_5

Definition at line 36 of file lg5eps_w.h.

Member Typedef Documentation

P

typedef multi1d<LatticeColorMatrix> Chroma::lg5eps::P

Definition at line 41 of file lg5eps_w.h.

Q

typedef multi1d<LatticeColorMatrix> Chroma::lg5eps::Q

Definition at line 42 of file lg5eps_w.h.

T

typedef LatticeFermion Chroma::lg5eps::T

Definition at line 40 of file lg5eps_w.h.

Constructor & Destructor Documentation

lg5eps()

Chroma::lg5eps::lg5eps ( const UnprecWilsonTypeFermAct< T, P, Q > &  S_aux, Handle< FermState< T, P, Q > >  state, int  _numroot, const Real &  _constP, const multi1d< Real > &  _resP, const multi1d< Real > &  _rootQ, int  _NEig, const multi1d< Real > &  _EigValFunc, const multi1d< LatticeFermion > &  _EigVec, int  _MaxCG, const Real &  _RsdCG, const int  _ReorthFreq  )

inline

Creation routine.

Parameters

_MdagM	M^dag.M of underlying linop M (Read)
_M	Underlying linop M (Read)
_numroot	number of poles in expansion (Read)
_constP	constant coeff (Read)
_resP	numerator (Read)
_rootQ	denom (Read)
_OperEigVec	eigenvectors (Read)
_EigValFunc	eigenvalues (Read)
_NEig	number of eigenvalues (Read)
_MaxCG	MaxCG inner CG (Read)
_RsdCG	residual for inner CG (Read)

Definition at line 58 of file lg5eps_w.h.

~lg5eps()

Chroma::lg5eps::~lg5eps ( )

inline

Destructor is automatic.

Definition at line 76 of file lg5eps_w.h.

Member Function Documentation

subset()

const Subset& Chroma::lg5eps::subset ( void  ) const

inlinevirtual

Only defined on the entire lattice.

Implements Chroma::LinearOperator< LatticeFermion >.

Definition at line 79 of file lg5eps_w.h.

Member Data Documentation

constP

const Real Chroma::lg5eps::constP

private

Definition at line 94 of file lg5eps_w.h.

Referenced by operator()().

EigValFunc

const multi1d<Real> Chroma::lg5eps::EigValFunc

private

Definition at line 98 of file lg5eps_w.h.

Referenced by operator()().

EigVec

const multi1d<LatticeFermion> Chroma::lg5eps::EigVec

private

Definition at line 97 of file lg5eps_w.h.

Referenced by operator()().

M

Handle<const LinearOperator<LatticeFermion> > Chroma::lg5eps::M

private

Definition at line 89 of file lg5eps_w.h.

MaxCG

int Chroma::lg5eps::MaxCG

private

Definition at line 100 of file lg5eps_w.h.

Referenced by operator()().

MdagM

Handle<const LinearOperator<LatticeFermion> > Chroma::lg5eps::MdagM

private

Definition at line 90 of file lg5eps_w.h.

NEig

int Chroma::lg5eps::NEig

private

Definition at line 99 of file lg5eps_w.h.

Referenced by operator()().

numroot

int Chroma::lg5eps::numroot

private

Definition at line 93 of file lg5eps_w.h.

Referenced by operator()().

ReorthFreq

const int Chroma::lg5eps::ReorthFreq

private

Definition at line 102 of file lg5eps_w.h.

Referenced by operator()().

resP

const multi1d<Real> Chroma::lg5eps::resP

private

Definition at line 95 of file lg5eps_w.h.

Referenced by operator()().

rootQ

const multi1d<Real> Chroma::lg5eps::rootQ

private

Definition at line 96 of file lg5eps_w.h.

Referenced by operator()().

RsdCG

const Real Chroma::lg5eps::RsdCG

private

Definition at line 101 of file lg5eps_w.h.

Referenced by operator()().

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

• lg5eps_w.h
• lg5eps_w.cc