suN_gauge.cpp File Reference

Application to simulate \( SU(N) \) Gauge field. More...

#include "hila.h"
#include "gauge/staples.h"
#include "gauge/polyakov.h"
#include "gauge/stout_smear.h"
#include "gauge/sun_heatbath.h"
#include "gauge/sun_overrelax.h"
#include <fftw3.h>
#include "parameters.h"
#include "checkpoint.h"

Include dependency graph for suN_gauge.cpp:

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Functions
template<typename group >
void	do_trajectory (GaugeField< group > &U, const parameters &p)
	Evolve gauge field.
template<typename group >
void	measure_stuff (const GaugeField< group > &U, const parameters &p)
	Measures Polyakov lines and Wilson action.
template<typename group >
void	update (GaugeField< group > &U, const parameters &p, bool relax)
	Wrapper update function.
template<typename group >
void	update_parity_dir (GaugeField< group > &U, const parameters &p, Parity par, Direction d, bool relax)
	Wrapper function to updated GaugeField per direction.
int	z_ind (int z)
	Helper function to get valid z-coordinate index.

Detailed Description

Application to simulate \( SU(N) \) Gauge field.

Simple application which Generates \( SU(N) \) GaugeField using staplesum, suN_overrelax and suN_heatbath. Each evolution, the application measures the Wilson action using GaugeField::measure_plaq and Polyakov lines using measure_polyakov.

Definition in file suN_gauge.cpp.

Function Documentation

do_trajectory()

template<typename group >

void do_trajectory	(	GaugeField< group > &	U,
		const parameters &	p
	)

Evolve gauge field.

Evolution happens by means of heat bath and over relaxation. For each heatbath update (p.n_update) we update p.n_overrelax times with over relaxation.

Template Parameters

group

Parameters

U
p

Definition at line 142 of file suN_gauge.cpp.

measure_stuff()

template<typename group >

void measure_stuff	(	const GaugeField< group > &	U,
		const parameters &	p
	)

Measures Polyakov lines and Wilson action.

Template Parameters

group

Parameters

U	GaugeField to measure
p	Parameter struct

Definition at line 40 of file suN_gauge.cpp.

update()

template<typename group >

void update	(	GaugeField< group > &	U,
		const parameters &	p,
		bool	relax
	)

Wrapper update function.

Updates Gauge Field one direction at a time first EVEN then ODD parity

Template Parameters

group

Parameters

U	GaugeField to update
p	Parameter struct
relax	If true evolves GaugeField with over relaxation if false then with heat bath

Definition at line 72 of file suN_gauge.cpp.

update_parity_dir()

template<typename group >

void update_parity_dir	(	GaugeField< group > &	U,
		const parameters &	p,
		Parity	par,
		Direction	d,
		bool	relax
	)

Wrapper function to updated GaugeField per direction.

Computes first staplesum, then uses computed result to evolve GaugeField either with over relaxation or heat bath

Template Parameters

group

Parameters

U	GaugeField to evolve
p	parameter struct
par	Parity
d	Direction to evolve
relax	If true evolves GaugeField with over relaxation if false then with heat bath

Definition at line 95 of file suN_gauge.cpp.

z_ind()

int z_ind

(

int

z

)

Helper function to get valid z-coordinate index.

Parameters

z

Returns

int

Definition at line 28 of file suN_gauge.cpp.