t_propagator_nrqcd.cc File Reference

Main code for NRQCD propagator generation. More...

#include <iostream>
#include <cstdio>
#include "chroma.h"

Go to the source code of this file.

Classes
struct	Param_t
	Parameters for running program. More...
struct	Prop_t
	Propagators. More...
struct	Propagator_input_t
class	TimeSliceFunc
	Function object used for constructing the time-slice set. More...

Macros
#define	MAIN

Enumerations
enum	GaugeStartType {   HOT_START = 0 , COLD_START = 1 , FILE_START_NERSC = 2 , COLD_START =0 ,   HOT_START , HOT_START = 0 , COLD_START = 1 , FILE_START = 2 ,   HOT_START = 0 , COLD_START = 1 , FILE_START = 2 , HOT_START = 0 ,   COLD_START = 1 , FILE_START = 2 , HOT_START = 0 , COLD_START = 1 ,   FILE_START_NERSC = 2 }

Functions
void	time_evolve (LatticeFermion &Gplus, const LatticeFermion &Gnow, int t)
void	compute_nrqcd_prop (LatticeFermion &G, const LatticeFermion &Gsource, const multi1d< LatticeColorMatrix > &u, const Real Mass, int n, int nt)
void	read (XMLReader &xml, const std::string &path, Prop_t &input)
void	read (XMLReader &xml, const std::string &path, Propagator_input_t &input)
int	main (int argc, char **argv)
void	time_evolve (LatticeFermion &Gplus, const LatticeFermion &Gnow, const multi1d< LatticeColorMatrix > &u, int t)
void	apply_lowest_ke (LatticeFermion &Gout, const LatticeFermion &Gin, const multi1d< LatticeColorMatrix > &u, const Real Mass, int t)

Detailed Description

Main code for NRQCD propagator generation.

This is a template program to help the Glasgow group impliment the NRQCD action to whatever order they want.

See Thacker and Lepage , PRD 43, 1991 ,196

To start this off I will just add in the additional code to this file. Eventally (but quickly), the fermion operator will be put in the appropriate place (whatever that is),

The NRQCD evolution equation is not a natural std::map to the chroma/qdp++ system. Apply the operators to the full lattice but only look at a specific time slice, using the set notation.

For NRQCD code need the field strength (and derivatives# of.

This code needs to be converted from SZIN. ./actions/ferm/fermacts/prec_clover_fermact_w.cc

LATTICE_FIELD_STRENGTH(f); To get at MesField (u, f);

Definition in file t_propagator_nrqcd.cc.

Macro Definition Documentation

MAIN

#define MAIN

Definition at line 39 of file t_propagator_nrqcd.cc.

Enumeration Type Documentation

GaugeStartType

enum GaugeStartType

Enumerator
HOT_START
COLD_START
FILE_START_NERSC
COLD_START
HOT_START
HOT_START
COLD_START
FILE_START
HOT_START
COLD_START
FILE_START
HOT_START
COLD_START
FILE_START
HOT_START
COLD_START
FILE_START_NERSC

Definition at line 61 of file t_propagator_nrqcd.cc.

Function Documentation

apply_lowest_ke()

void apply_lowest_ke	(	LatticeFermion &	Gout,
		const LatticeFermion &	Gin,
		const multi1d< LatticeColorMatrix > &	u,
		const Real	Mass,
		int	t
	)

Definition at line 516 of file t_propagator_nrqcd.cc.

References Chroma::displacement(), Chroma::Mass, t, Chroma::tmp, and Chroma::u.

Referenced by compute_nrqcd_prop().

compute_nrqcd_prop()

void compute_nrqcd_prop	(	LatticeFermion &	G,
		const LatticeFermion &	Gsource,
		const multi1d< LatticeColorMatrix > &	u,
		const Real	Mass,
		int	n,
		int	nt
	)

Definition at line 570 of file t_propagator_nrqcd.cc.

References apply_lowest_ke(), Chroma::i, Chroma::Mass, n, t, time_evolve(), and Chroma::u.

Referenced by main().

main()

int main	(	int	argc,
		char **	argv
	)

Definition at line 261 of file t_propagator_nrqcd.cc.

References Param_t::boundary, Propagator_input_t::cfg, Chroma::Cfg_t::cfg_file, Param_t::cfg_type, COLD_START, compute_nrqcd_prop(), coord(), Chroma::FermToProp(), FILE_START_NERSC, Chroma::finalize(), FORWARD, Chroma::gaussian(), Chroma::getXMLOutputInstance(), HOT_START, Chroma::initialize(), j, j_decay, Param_t::Mass, Chroma::mesons(), Chroma::MesPlq(), Chroma::n_count, Nd, Param_t::nrow, Propagator_input_t::param, Chroma::pop(), Chroma::psi, Chroma::push(), Chroma::QDP_error_exit(), Chroma::read(), Chroma::reunit(), Chroma::S_f, Chroma::srcfil(), Chroma::state, t0, t_source, Chroma::u, Chroma::unitarityCheck(), Chroma::write(), and Chroma::zero.

read() [1/2]

void read	(	XMLReader &	xml,
		const std::string &	path,
		Prop_t &	input
	)

Definition at line 107 of file t_propagator_nrqcd.cc.

References Prop_t::prop_file, and Chroma::read().

read() [2/2]

void read	(	XMLReader &	xml,
		const std::string &	path,
		Propagator_input_t &	input
	)

Definition at line 118 of file t_propagator_nrqcd.cc.

References Param_t::boundary, Param_t::cfg_type, COLD_START, Chroma::FERM_TYPE_WILSON, Param_t::FermTypeP, FILE_START_NERSC, HOT_START, Param_t::invParam, Propagator_input_t::io_version, Param_t::Mass, Chroma::SysSolverCGParams::MaxCG, Param_t::nrow, Propagator_input_t::param, Propagator_input_t::prop, Param_t::prop_type, Chroma::PROP_TYPE_SZIN, Chroma::QDP_error_exit(), Chroma::read(), Chroma::SysSolverCGParams::RsdCG, Param_t::t_srce, Param_t::u0, and Chroma::IO_version_t::version.

time_evolve() [1/2]

void time_evolve	(	LatticeFermion &	Gplus,
		const LatticeFermion &	Gnow,
		const multi1d< LatticeColorMatrix > &	u,
		int	t
	)

Definition at line 484 of file t_propagator_nrqcd.cc.

References BACKWARD, t, Chroma::tmp, and Chroma::u.

time_evolve() [2/2]

void time_evolve	(	LatticeFermion &	Gplus,
		const LatticeFermion &	Gnow,
		int	t
	)

Referenced by compute_nrqcd_prop().