Unpreconditioned Graphene operator. More...

#include <unprec_graphene_linop_w.h>

Inheritance diagram for Chroma::UnprecGrapheneLinOp:

Public Types
typedef LatticeFermion	T

typedef multi1d< LatticeColorMatrix >	P

typedef multi1d< LatticeColorMatrix >	Q

Public Member Functions
	UnprecGrapheneLinOp ()
	Partial constructor. More...

	UnprecGrapheneLinOp (Handle< FermState< T, P, Q > > fs, const Real &Mass_)
	Full constructor. More...

	UnprecGrapheneLinOp (Handle< FermState< T, P, Q > > fs, const Real &Mass_, const AnisoParam_t &aniso)
	Full constructor with Anisotropy. More...

	~UnprecGrapheneLinOp ()
	Destructor is automatic. More...

const FermBC< T, P, Q > &	getFermBC () const
	Return the fermion BC object for this linear operator. More...

void	create (Handle< FermState< T, P, Q > > fs, const Real &Mass_)
	Creation routine. More...

void	create (Handle< FermState< T, P, Q > > fs, const Real &Mass_, const AnisoParam_t &aniso)
	Creation routine with Anisotropy. More...

void	operator() (LatticeFermion &chi, const LatticeFermion &psi, enum PlusMinus isign) const
	Apply the operator onto a source std::vector. More...

void	deriv (multi1d< LatticeColorMatrix > &ds_u, const LatticeFermion &chi, const LatticeFermion &psi, enum PlusMinus isign) const
	Derivative of unpreconditioned Graphene dM/dU. More...

unsigned long	nFlops () const
	Return flops performed by the operator() More...

Public Member Functions inherited from Chroma::UnprecLinearOperator< LatticeFermion, multi1d< LatticeColorMatrix >, multi1d< LatticeColorMatrix > >
virtual	~UnprecLinearOperator ()
	Virtual destructor to help with cleanup;. More...

const Subset &	subset () const
	Only defined on the entire lattice. More...

Public Member Functions inherited from Chroma::DiffLinearOperator< LatticeFermion, multi1d< LatticeColorMatrix >, multi1d< LatticeColorMatrix > >
virtual	~DiffLinearOperator ()
	Virtual destructor to help with cleanup;. More...

virtual void	deriv (multi1d< LatticeColorMatrix > &ds_u, const LatticeFermion &chi, const LatticeFermion &psi, enum PlusMinus isign, const Real &epsilon) const
	Apply the derivative of the operator onto a source std::vector to some precision. More...

virtual void	derivMultipole (multi1d< LatticeColorMatrix > &ds_u, const multi1d< LatticeFermion > &chi, const multi1d< LatticeFermion > &psi, enum PlusMinus isign) const
	Return the force for multiple poles. More...

Public Member Functions inherited from Chroma::LinearOperator< LatticeFermion >
virtual	~LinearOperator ()
	Virtual destructor to help with cleanup;. More...

virtual void	operator() (LatticeFermion &chi, const LatticeFermion &psi, enum PlusMinus isign, Real epsilon) const
	Apply the operator onto a source std::vector to some precision. More...

Private Member Functions
void	gammaMults (multi1d< LatticeFermion > &tmp1, const LatticeFermion &psi) const
	Form gamma_mu * psi. More...

void	iGamMu (LatticeFermion &iGam, const multi1d< LatticeFermion > &gams, int mu) const
	Form iGamma_mu psi. More...

Private Attributes
Real	Mass

AnisoParam_t	anisoParam

Handle< FermBC< T, P, Q > >	fbc

multi1d< LatticeColorMatrix >	u

multi2d< int >	alpha

Detailed Description

Unpreconditioned Graphene operator.

This routine is specific to Wilson fermions!

                                                 ~      ~+

This subroutine applies the unpreconditioned matrix M or M the std::vector Psi,

               {   ~
               {   M(U) . Psi              if  ISign = PLUS
       Chi  =  {
               {   ~   +
               {   M(U)  . Psi             if  ISign = MINUS

Algorithm:

The kernel for these Graphene fermions is

 M  =  m + i\sum_\mu\gamma_mu + 
     (1/2)*[(i*\Gamma_mu+\gamma_mu)*H_\mu + (i*\Gamma_mu-\gamma_mu)*H_-\mu]

Definition at line 45 of file unprec_graphene_linop_w.h.

Member Typedef Documentation

◆ P

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

Definition at line 51 of file unprec_graphene_linop_w.h.

◆ Q

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

Definition at line 52 of file unprec_graphene_linop_w.h.

◆ T

typedef LatticeFermion Chroma::UnprecGrapheneLinOp::T

Definition at line 50 of file unprec_graphene_linop_w.h.

Constructor & Destructor Documentation

◆ UnprecGrapheneLinOp() [1/3]

Chroma::UnprecGrapheneLinOp::UnprecGrapheneLinOp ( )

inline

Partial constructor.

Definition at line 55 of file unprec_graphene_linop_w.h.

◆ UnprecGrapheneLinOp() [2/3]

Chroma::UnprecGrapheneLinOp::UnprecGrapheneLinOp	(	Handle< FermState< T, P, Q > >	fs,
		const Real &	Mass_
	)

inline

Full constructor.

Definition at line 58 of file unprec_graphene_linop_w.h.

References create().

◆ UnprecGrapheneLinOp() [3/3]

Chroma::UnprecGrapheneLinOp::UnprecGrapheneLinOp	(	Handle< FermState< T, P, Q > >	fs,
		const Real &	Mass_,
		const AnisoParam_t &	aniso
	)

inline

Full constructor with Anisotropy.

Definition at line 62 of file unprec_graphene_linop_w.h.

References create().

◆ ~UnprecGrapheneLinOp()

Chroma::UnprecGrapheneLinOp::~UnprecGrapheneLinOp ( )

inline

Destructor is automatic.

Definition at line 68 of file unprec_graphene_linop_w.h.

Member Function Documentation

◆ create() [1/2]

void Chroma::UnprecGrapheneLinOp::create	(	Handle< FermState< T, P, Q > >	fs,
		const Real &	Mass_
	)

Creation routine.

Parameters

u_	gauge field (Read)
Mass_	fermion kappa (Read)

Definition at line 22 of file unprec_graphene_linop_w.cc.

Referenced by UnprecGrapheneLinOp().

◆ create() [2/2]

void Chroma::UnprecGrapheneLinOp::create	(	Handle< FermState< T, P, Q > >	fs,
		const Real &	Mass_,
		const AnisoParam_t &	aniso_
	)

Creation routine with Anisotropy.

Parameters

u_	gauge field (Read)
Mass_	fermion kappa (Read)
aniso	anisotropy struct (Read)

Definition at line 36 of file unprec_graphene_linop_w.cc.

References Chroma::StagPhases::alpha(), END_CODE, Mass, mu, Nd, nu, START_CODE, and Chroma::u.

◆ deriv()

void Chroma::UnprecGrapheneLinOp::deriv	(	multi1d< LatticeColorMatrix > &	ds_u,
		const LatticeFermion &	chi,
		const LatticeFermion &	psi,
		enum PlusMinus	isign
	)		const

virtual

Derivative of unpreconditioned Graphene dM/dU.

Parameters

chi	left std::vector on cb (Read)
psi	right std::vector on 1-cb (Read)
isign	D'^dag or D' ( MINUS \| PLUS ) resp. (Read)
cb	Checkerboard of chi std::vector (Read)

Returns: Computes $\chi^\dag * \dot(D} * \psi$

Reimplemented from Chroma::DiffLinearOperator< LatticeFermion, multi1d< LatticeColorMatrix >, multi1d< LatticeColorMatrix > >.

Definition at line 212 of file unprec_graphene_linop_w.cc.

References chi, END_CODE, FORWARD, Chroma::isign, Chroma::MINUS, mu, Nd, Chroma::PLUS, psi, Chroma::QDP_error_exit(), START_CODE, tmp2, and tmp3.

◆ gammaMults()

void Chroma::UnprecGrapheneLinOp::gammaMults	(	multi1d< LatticeFermion > &	tmp1,
		const LatticeFermion &	psi
	)		const

private

Form gamma_mu * psi.

Definition at line 107 of file unprec_graphene_linop_w.cc.

References Nd, and psi.

◆ getFermBC()

const FermBC<T,P,Q>& Chroma::UnprecGrapheneLinOp::getFermBC ( ) const

inlinevirtual

Return the fermion BC object for this linear operator.

Implements Chroma::DiffLinearOperator< LatticeFermion, multi1d< LatticeColorMatrix >, multi1d< LatticeColorMatrix > >.

Definition at line 71 of file unprec_graphene_linop_w.h.

References fbc.

◆ iGamMu()

void Chroma::UnprecGrapheneLinOp::iGamMu	(	LatticeFermion &	iGam,
		const multi1d< LatticeFermion > &	gams,
		int	mu
	)		const

private

Form i*Gamma_mu * psi.

Definition at line 121 of file unprec_graphene_linop_w.cc.

References Chroma::StagPhases::alpha(), mu, Nd, nu, and tmp2.

◆ nFlops()

unsigned long Chroma::UnprecGrapheneLinOp::nFlops ( void ) const

virtual

Return flops performed by the operator()

Reimplemented from Chroma::LinearOperator< LatticeFermion >.

Definition at line 290 of file unprec_graphene_linop_w.cc.

Member Data Documentation

◆ alpha

multi2d<int> Chroma::UnprecGrapheneLinOp::alpha

private

Definition at line 106 of file unprec_graphene_linop_w.h.

◆ anisoParam

AnisoParam_t Chroma::UnprecGrapheneLinOp::anisoParam

private

Definition at line 102 of file unprec_graphene_linop_w.h.

◆ fbc

Handle< FermBC<T,P,Q> > Chroma::UnprecGrapheneLinOp::fbc

private

Definition at line 104 of file unprec_graphene_linop_w.h.

Referenced by getFermBC().

◆ Mass

Real Chroma::UnprecGrapheneLinOp::Mass

private

Definition at line 101 of file unprec_graphene_linop_w.h.

◆ u

multi1d<LatticeColorMatrix> Chroma::UnprecGrapheneLinOp::u

private

Definition at line 105 of file unprec_graphene_linop_w.h.

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

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ P

◆ Q

◆ T

Constructor & Destructor Documentation

◆ UnprecGrapheneLinOp() [1/3]

◆ UnprecGrapheneLinOp() [2/3]

◆ UnprecGrapheneLinOp() [3/3]

◆ ~UnprecGrapheneLinOp()

Member Function Documentation

◆ create() [1/2]

◆ create() [2/2]

◆ deriv()

◆ gammaMults()

◆ getFermBC()

◆ iGamMu()

◆ nFlops()

Member Data Documentation

◆ alpha

◆ anisoParam

◆ fbc

◆ Mass

◆ u