Fermion operator for rational approximation. More...

#include <fopr_Rational_SF.h>

Inheritance diagram for Fopr_Rational_SF:

Public Member Functions
	Fopr_Rational_SF (Fopr *fopr)

	Fopr_Rational_SF (Fopr *fopr, const Parameters &params)

	~Fopr_Rational_SF ()

void	set_parameters (const Parameters &params)
	sets parameters by a Parameter object: to be implemented in a subclass. More...

void	set_parameters (const int Np, const int n_exp, const int d_exp, const double x_min, const double x_max, const int Niter, const double Stop_cond)

void	get_parameters (Parameters &params) const
	gets parameters by a Parameter object: to be implemented in a subclass. More...

void	set_config (Field *U)
	sets the gauge configuration. More...

void	mult (Field &v, const Field &f)

void	mult_dag (Field &v, const Field &f)
	hermitian conjugate of mult. More...

double	func (const double x)

int	field_nvol ()
	returns the volume of the fermion field. More...

int	field_nin ()
	returns the on-site degree of freedom of the fermion field. More...

int	field_nex ()
	returns the external degree of freedom of the fermion field. More...

double	flop_count ()
	this returns the number of floating point operations. More...

Public Member Functions inherited from AFopr< Field >
	AFopr ()

virtual	~AFopr ()

virtual void	set_mode (std::string mode)
	setting the mode of multiplication if necessary. Default implementation here is just to avoid irrelevant call. More...

virtual std::string	get_mode () const
	returns the current mult mode. More...

virtual void	mult (Field &, const Field &, const std::string mode)
	executes mult with specified mode (unchanging internal mode). More...

virtual void	mult_dag (Field &, const Field &, const std::string mode)
	executes mult_dag with specified mode (unchanging internal mode). More...

virtual void	mult_gm5 (Field &, const Field &)
	multiplies gamma_5 matrix. More...

virtual void	mult_up (int mu, Field &, const Field &)
	upward nearest neighbor hopping term. More...

virtual void	mult_dn (int mu, Field &, const Field &)
	downward nearest neighbor hopping term. More...

virtual void	normalize_fprop (Field &)
	normalize propagator if necessary (default: do nothing) More...

virtual void	normalize_fopr (Field &)
	normalize propagator if necessary (default: do nothing) More...

virtual double	flop_count (const std::string mode)
	returns the flops per site for specified mode. More...

virtual bool	needs_convert ()
	returns true if additional field conversion is needed. More...

virtual void	convert (Field &, const Field &)
	converts a Field object into other format if necessary. More...

virtual void	reverse (Field &, const Field &)
	converts an alternative field to a Field object. More...

Static Public Attributes
static const std::string	class_name = "Fopr_Rational_SF"

Private Member Functions
void	init_parameters ()

Private Attributes
Bridge::VerboseLevel	m_vl

int	m_Np

int	m_n_exp

int	m_d_exp

double	m_x_min

double	m_x_max

int	m_Niter

double	m_Stop_cond

Fopr *	m_fopr

Shiftsolver_CG *	m_solver

double	m_a0

std::vector< double >	m_cl

std::vector< double >	m_bl

std::vector< Field >	m_xq

Additional Inherited Members
Static Protected Attributes inherited from AFopr< Field >
static const std::string	class_name

Detailed Description

Fermion operator for rational approximation.

This class generates fermion operator with rational approximation for a given fermion operator (given to the constructer). Shift-solver is used which is at present set to the CG solver explicitly.

Modified for a Wilson type Dirac operator with SF BC.
A modification is to set the field value at the temporal boundary to zero before and after a multiplication of the Dirac operator.
[07 Apr 2012 Y.Taniguchi]

(Coding history will be recovered from trac.) YAML is implemented. [14 Nov 2012 Y.Namekawa] unique_ptr is introduced to avoid memory leaks [21 Mar 2015 Y.Namekawa]

Definition at line 44 of file fopr_Rational_SF.h.

Constructor & Destructor Documentation

◆ Fopr_Rational_SF() [1/2]

Fopr_Rational_SF::Fopr_Rational_SF ( Fopr * fopr )

inline

Definition at line 68 of file fopr_Rational_SF.h.

◆ Fopr_Rational_SF() [2/2]

Fopr_Rational_SF::Fopr_Rational_SF	(	Fopr *	fopr,
		const Parameters &	params
	)

inline

Definition at line 71 of file fopr_Rational_SF.h.

◆ ~Fopr_Rational_SF()

Fopr_Rational_SF::~Fopr_Rational_SF ( )

inline

Definition at line 77 of file fopr_Rational_SF.h.

Member Function Documentation

◆ field_nex()

int Fopr_Rational_SF::field_nex ( )

inlinevirtual

returns the external degree of freedom of the fermion field.

Implements AFopr< Field >.

Definition at line 104 of file fopr_Rational_SF.h.

◆ field_nin()

int Fopr_Rational_SF::field_nin ( )

inlinevirtual

returns the on-site degree of freedom of the fermion field.

Implements AFopr< Field >.

Definition at line 103 of file fopr_Rational_SF.h.

◆ field_nvol()

int Fopr_Rational_SF::field_nvol ( )

inlinevirtual

returns the volume of the fermion field.

Implements AFopr< Field >.

Definition at line 102 of file fopr_Rational_SF.h.

◆ flop_count()

double Fopr_Rational_SF::flop_count ( )

virtual

this returns the number of floating point operations.

Reimplemented from AFopr< Field >.

Definition at line 203 of file fopr_Rational_SF.cpp.

◆ func()

double Fopr_Rational_SF::func ( const double x )

Definition at line 190 of file fopr_Rational_SF.cpp.

◆ get_parameters()

void Fopr_Rational_SF::get_parameters ( Parameters & params ) const

virtual

gets parameters by a Parameter object: to be implemented in a subclass.

Reimplemented from AFopr< Field >.

Definition at line 58 of file fopr_Rational_SF.cpp.

◆ init_parameters()

void Fopr_Rational_SF::init_parameters ( )

private

Definition at line 116 of file fopr_Rational_SF.cpp.

◆ mult()

void Fopr_Rational_SF::mult	(	Field &	v,
		const Field &	b
	)

virtual

A modification from the original funtion is:

Set the source vector at the boundary to zero by set_boundary_zero(v)
Set the sokution vector at the boundary to zero by set_boundary_zero(v)

Reimplemented from AFopr< Field >.

Definition at line 158 of file fopr_Rational_SF.cpp.

◆ mult_dag()

void Fopr_Rational_SF::mult_dag	(	Field &	,
		const Field &
	)

inlinevirtual

hermitian conjugate of mult.

Reimplemented from AFopr< Field >.

Definition at line 95 of file fopr_Rational_SF.h.

◆ set_config()

void Fopr_Rational_SF::set_config ( Field * )

inlinevirtual

sets the gauge configuration.

Implements AFopr< Field >.

Definition at line 88 of file fopr_Rational_SF.h.

◆ set_parameters() [1/2]

void Fopr_Rational_SF::set_parameters	(	const int	Np,
		const int	n_exp,
		const int	d_exp,
		const double	x_min,
		const double	x_max,
		const int	Niter,
		const double	Stop_cond
	)

Definition at line 73 of file fopr_Rational_SF.cpp.

◆ set_parameters() [2/2]

void Fopr_Rational_SF::set_parameters ( const Parameters & params )

virtual

sets parameters by a Parameter object: to be implemented in a subclass.

Reimplemented from AFopr< Field >.

Definition at line 25 of file fopr_Rational_SF.cpp.

Member Data Documentation

◆ class_name

const std::string Fopr_Rational_SF::class_name = "Fopr_Rational_SF"

static

Definition at line 47 of file fopr_Rational_SF.h.

◆ m_a0

double Fopr_Rational_SF::m_a0

private

Definition at line 61 of file fopr_Rational_SF.h.

◆ m_bl

std::vector<double> Fopr_Rational_SF::m_bl

private

Definition at line 63 of file fopr_Rational_SF.h.

◆ m_cl

std::vector<double> Fopr_Rational_SF::m_cl

private

Definition at line 62 of file fopr_Rational_SF.h.

◆ m_d_exp

int Fopr_Rational_SF::m_d_exp

private

Definition at line 53 of file fopr_Rational_SF.h.

◆ m_fopr

Fopr* Fopr_Rational_SF::m_fopr

private

Definition at line 58 of file fopr_Rational_SF.h.

◆ m_n_exp

int Fopr_Rational_SF::m_n_exp

private

Definition at line 53 of file fopr_Rational_SF.h.

◆ m_Niter

int Fopr_Rational_SF::m_Niter

private

Definition at line 55 of file fopr_Rational_SF.h.

◆ m_Np

int Fopr_Rational_SF::m_Np

private

Definition at line 52 of file fopr_Rational_SF.h.

◆ m_solver

Shiftsolver_CG* Fopr_Rational_SF::m_solver

private

Definition at line 59 of file fopr_Rational_SF.h.

◆ m_Stop_cond

double Fopr_Rational_SF::m_Stop_cond

private

Definition at line 56 of file fopr_Rational_SF.h.

◆ m_vl

Bridge::VerboseLevel Fopr_Rational_SF::m_vl

private

Definition at line 50 of file fopr_Rational_SF.h.

◆ m_x_max

double Fopr_Rational_SF::m_x_max

private

Definition at line 54 of file fopr_Rational_SF.h.

◆ m_x_min

double Fopr_Rational_SF::m_x_min

private

Definition at line 54 of file fopr_Rational_SF.h.

◆ m_xq

std::vector<Field> Fopr_Rational_SF::m_xq

private

Definition at line 64 of file fopr_Rational_SF.h.

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

src/lib/Fopr/fopr_Rational_SF.h
src/lib/Fopr/fopr_Rational_SF.cpp

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Fopr_Rational_SF() [1/2]

◆ Fopr_Rational_SF() [2/2]

◆ ~Fopr_Rational_SF()

Member Function Documentation

◆ field_nex()

◆ field_nin()

◆ field_nvol()

◆ flop_count()

◆ func()

◆ get_parameters()

◆ init_parameters()

◆ mult()

◆ mult_dag()

◆ set_config()

◆ set_parameters() [1/2]

◆ set_parameters() [2/2]

Member Data Documentation

◆ class_name

◆ m_a0

◆ m_bl

◆ m_cl

◆ m_d_exp

◆ m_fopr

◆ m_n_exp

◆ m_Niter

◆ m_Np

◆ m_solver

◆ m_Stop_cond

◆ m_vl

◆ m_x_max

◆ m_x_min

◆ m_xq