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 (unique_ptr< Fopr > &fopr)

	~Fopr_Rational_SF ()

void	set_parameters (const Parameters &params)

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	set_config (Field *U)
	setting pointer to the gauge configuration. More...

void	set_config (unique_ptr< Field_G > &U)

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

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

double	func (const double x)

int	field_nvol ()
	returns the volume for which the fermion operator is defined. More...

int	field_nin ()
	returns the on-site d.o.f. for which the fermion operator is defined. More...

int	field_nex ()
	returns the external d.o.f. for which the fermion operator is defined. More...

Public Member Functions inherited from Fopr
	Fopr ()

virtual	~Fopr ()

void	set_parameter_verboselevel (const Bridge::VerboseLevel vl)

virtual void	mult_gm5 (Field &, const Field &)
	gamma_5 multiplication. [31 Mar 2017 H.Matsufuru] More...

virtual void	mult (Field &, const Field &, const std::string mode)
	execute mult with specified mode (unchanging internal mode). [23 May 2016 H.Matsufuru]. More...

virtual void	mult_dag (Field &, const Field &, const std::string mode)
	execute mult_dag with specified mode (unchanging internal mode). [23 May 2016 H.Matsufuru]. More...

virtual void	mult_up (const int mu, Field &, const Field &)
	nearest neighbor hopping term: temporary entry [H.Matsufuru] More...

virtual void	mult_dn (const int mu, Field &, const Field &)

virtual void	set_mode (const 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
	only for Fopr_Overlap More...

virtual double	flop_count ()
	returns the flop in giga unit More...

virtual double	flop_count (const std::string mode)
	returns the flop in giga unit for a specified mode. [23 May 2016 H.Matsufuru] More...

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

Private Member Functions
void	init_parameters ()

Private Attributes
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
Protected Attributes inherited from Fopr
Bridge::VerboseLevel	m_vl

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 43 of file fopr_Rational_SF.h.

Constructor & Destructor Documentation

Fopr_Rational_SF::Fopr_Rational_SF ( Fopr * fopr )

inline

Definition at line 64 of file fopr_Rational_SF.h.

Fopr_Rational_SF::Fopr_Rational_SF ( unique_ptr< Fopr > & fopr )

inline

Definition at line 67 of file fopr_Rational_SF.h.

Fopr_Rational_SF::~Fopr_Rational_SF ( )

inline

Definition at line 70 of file fopr_Rational_SF.h.

Member Function Documentation

int Fopr_Rational_SF::field_nex ( )

inlinevirtual

returns the external d.o.f. for which the fermion operator is defined.

Implements Fopr.

Definition at line 100 of file fopr_Rational_SF.h.

int Fopr_Rational_SF::field_nin ( )

inlinevirtual

returns the on-site d.o.f. for which the fermion operator is defined.

Implements Fopr.

Definition at line 99 of file fopr_Rational_SF.h.

int Fopr_Rational_SF::field_nvol ( )

inlinevirtual

returns the volume for which the fermion operator is defined.

Implements Fopr.

Definition at line 98 of file fopr_Rational_SF.h.

double Fopr_Rational_SF::func ( const double x )

Definition at line 175 of file fopr_Rational_SF.cpp.

void Fopr_Rational_SF::init_parameters ( )

private

Definition at line 100 of file fopr_Rational_SF.cpp.

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)

Implements Fopr.

Definition at line 142 of file fopr_Rational_SF.cpp.

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

inlinevirtual

hermitian conjugate of mult(Field&, const Field&).

Reimplemented from Fopr.

Definition at line 91 of file fopr_Rational_SF.h.

void Fopr_Rational_SF::set_config ( Field * )

inlinevirtual

setting pointer to the gauge configuration.

Implements Fopr.

Definition at line 79 of file fopr_Rational_SF.h.

void Fopr_Rational_SF::set_config ( unique_ptr< Field_G > & U )

inlinevirtual

Implements Fopr.

Definition at line 84 of file fopr_Rational_SF.h.

void Fopr_Rational_SF::set_parameters ( const Parameters & params )

virtual

Implements Fopr.

Definition at line 25 of file fopr_Rational_SF.cpp.

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 57 of file fopr_Rational_SF.cpp.

Member Data Documentation

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

static

Definition at line 46 of file fopr_Rational_SF.h.

double Fopr_Rational_SF::m_a0

private

Definition at line 58 of file fopr_Rational_SF.h.

std::vector<double> Fopr_Rational_SF::m_bl

private

Definition at line 60 of file fopr_Rational_SF.h.

std::vector<double> Fopr_Rational_SF::m_cl

private

Definition at line 59 of file fopr_Rational_SF.h.

int Fopr_Rational_SF::m_d_exp

private

Definition at line 50 of file fopr_Rational_SF.h.

Fopr* Fopr_Rational_SF::m_fopr

private

Definition at line 55 of file fopr_Rational_SF.h.

int Fopr_Rational_SF::m_n_exp

private

Definition at line 50 of file fopr_Rational_SF.h.

int Fopr_Rational_SF::m_Niter

private

Definition at line 52 of file fopr_Rational_SF.h.

int Fopr_Rational_SF::m_Np

private

Definition at line 49 of file fopr_Rational_SF.h.

Shiftsolver_CG* Fopr_Rational_SF::m_solver

private

Definition at line 56 of file fopr_Rational_SF.h.

double Fopr_Rational_SF::m_Stop_cond

private

Definition at line 53 of file fopr_Rational_SF.h.

double Fopr_Rational_SF::m_x_max

private

Definition at line 51 of file fopr_Rational_SF.h.

double Fopr_Rational_SF::m_x_min

private

Definition at line 51 of file fopr_Rational_SF.h.

std::vector<Field> Fopr_Rational_SF::m_xq

private

Definition at line 61 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

Member Function Documentation

Member Data Documentation