Files
file	reunit.cc
	Reunitarize in place a color matrix to SU(N)

file	reunit.h
	Reunitarize in place a color matrix to SU(N)

file	su3proj.cc
	Project a GL(3,C) color matrix onto SU(3)

file	su3proj.h
	Project a GL(3,C) color matrix onto SU(3)

file	sun_proj.cc
	Project a complex Nc x Nc matrix W onto SU(Nc) by maximizing Tr(VW)

file	sun_proj.h
	Project a complex Nc x Nc matrix W onto SU(Nc) by maximizing Tr(VW)

Classes
struct	Chroma::CERNGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::CERNGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::CPPACSGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::CPPACSGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::DisorderedGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::DisorderedGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

class	Chroma::GaugeInit
	Base class for gauge initialization. More...

struct	Chroma::KeyGlueElementalOperator_t
	Glue operator. More...

struct	Chroma::KYUGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::KYUGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::MILCGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::MILCGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::NERSCGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::NERSCGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::SFGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::SFGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

class	Chroma::StagPhases::alphaClass

class	Chroma::StagPhases::betaClass

struct	Chroma::SZINGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::SZINGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::SZINQIOGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::SZINQIOGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::UnitGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::UnitGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::WeakGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::WeakGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

struct	Chroma::WUPPGaugeInitEnv::Params
	Params for initializing config. More...

class	Chroma::WUPPGaugeInitEnv::GaugeIniter
	Gauge initialization. More...

Typedefs
typedef SingletonHolder< ObjectFactory< GaugeInit, std::string, TYPELIST_2(XMLReader &, const std::string &), GaugeInit ()(XMLReader &, const std::string &), StringFactoryError > >	Chroma::TheGaugeInitFactory
	Gauge initialization factory (foundry) More...

Functions
void	Chroma::read (XMLReader &xml, const std::string &path, CERNGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const CERNGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::conjgauge (multi1d< LatticeColorMatrix > &u)
	Take complex conjugate of gauge field u. More...

void	Chroma::constgauge (multi1d< LatticeColorMatrix > &u, const multi2d< Real > theta)
	Const diagonal gauge field. More...

void	Chroma::read (XMLReader &xml, const std::string &path, CPPACSGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const CPPACSGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::eesu2 (LatticeColorMatrix &m)
	Exactly exponentiate a SU(2) lie algebra element. More...

void	Chroma::eesu3 (LatticeColorMatrix &iQ)
	Exact exponentiation of SU(3) matrix. More...

void	Chroma::eeu1 (LatticeColorMatrix &lambda)
	Exactly exponentiate a U(1) lie algebra element. More...

void	Chroma::expm12 (LatticeColorMatrix &a)
	12-th order exponentiation of a lattice color matrix More...

void	Chroma::expmat (LatticeColorMatrix &a, enum ExpMat_t opt)
	Exponentiate a SU(n) lie algebra element by some method. More...

void	Chroma::gaugeStartup (XMLReader &gauge_file_xml, XMLReader &gauge_xml, multi1d< LatticeColorMatrix > &u, Cfg_t &cfg)
	Initialize the gauge fields. More...

void	Chroma::HotSt (multi1d< LatticeColorMatrix > &u)
	Set a gauge field from a sample of (almost) Haar measure. More...

void	Chroma::instanton (multi1d< LatticeColorMatrix > &u_inst, const multi1d< Real > &center, Real rho, int su2_index, int sign)
	Instanton construction. More...

void	Chroma::read (XMLReader &xml, const std::string &path, KYUGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const KYUGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::read (XMLReader &xml, const std::string &path, MILCGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const MILCGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::read (XMLReader &xml, const std::string &path, NERSCGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const NERSCGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::rgauge (multi1d< LatticeColorMatrix > &u, LatticeColorMatrix &g)
	Do a random gauge transformation on the u fields. More...

void	Chroma::rgauge (multi1d< LatticeColorMatrix > &u)
	Do a random gauge transformation on the u fields. More...

void	Chroma::read (XMLReader &xml, const std::string &path, SFGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const SFGaugeInitEnv::Params &param)
	Parameters for running code. More...

LatticeColorMatrix	Chroma::shift2 (const LatticeColorMatrix &s1, int isign, int dir, int level)
	A simple not-fancy power of 2 shift. More...

void	Chroma::Stouting::getQs (const multi1d< LatticeColorMatrix > &u, LatticeColorMatrix &Q, LatticeColorMatrix &QQ, int mu, const multi1d< bool > &smear_in_this_dirP, const multi2d< Real > &rho)
	Given field U, form Q and Q^2. More...

void	Chroma::Stouting::getQsandCs (const multi1d< LatticeColorMatrix > &u, LatticeColorMatrix &Q, LatticeColorMatrix &QQ, LatticeColorMatrix &C, int mu, const multi1d< bool > &smear_in_this_dirP, const multi2d< Real > &rho)
	Given field U, construct the staples into C, form Q and Q^2 and compute c0 and c1. More...

void	Chroma::Stouting::deriv_recurse (multi1d< LatticeColorMatrix > &F, const multi1d< bool > &smear_in_this_dirP, const multi2d< Real > &rho, const multi1d< LatticeColorMatrix > &u)
	Do the force recursion from level i+1, to level i. More...

void	Chroma::Stouting::getFs (const LatticeColorMatrix &Q, const LatticeColorMatrix &QQ, multi1d< LatticeComplex > &f)
	Given c0 and c1 compute the f-s and b-s. More...

void	Chroma::Stouting::getFsAndBs (const LatticeColorMatrix &Q, const LatticeColorMatrix &QQ, multi1d< LatticeComplex > &f, multi1d< LatticeComplex > &b1, multi1d< LatticeComplex > &b2, bool do_bs=true)
	Given c0 and c1 compute the f-s and b-s. More...

void	Chroma::Stouting::smear_links (const multi1d< LatticeColorMatrix > &current, multi1d< LatticeColorMatrix > &next, const multi1d< bool > &smear_in_this_dirP, const multi2d< Real > &rho)
	Do the smearing from level i to level i+1. More...

void	Chroma::Stouting::stout_smear (LatticeColorMatrix &next, const multi1d< LatticeColorMatrix > &current, int mu, const multi1d< bool > &smear_in_this_dirP, const multi2d< Real > &rho)
	Stout smear in a specific link direction. More...

template<typename S >
void	Chroma::su2Extract_t (multi1d< LatticeReal > &r, const LatticeColorMatrix &source, int su2_index, const S &s)
	Su2_extract: r_0,r_1,r_2,r_3 <- source(su2_index) [SU(N) field] under a subset. More...

void	Chroma::su2Extract (multi1d< LatticeReal > &r, const LatticeColorMatrix &source, int su2_index, const Subset &s)
	Su2_extract: r_0,r_1,r_2,r_3 <- source(su2_index) [SU(N) field] under a subset. More...

void	Chroma::sunFill (LatticeColorMatrix &dest, const multi1d< LatticeReal > &r, int su2_index, const Subset &s)
	Fill a dest(su2_index) <- r_0,r_1,r_2,r_3 under a subset. More...

void	Chroma::read (XMLReader &xml, const std::string &path, SZINGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const SZINGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::read (XMLReader &xml, const std::string &path, SZINQIOGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const SZINQIOGaugeInitEnv::Params &param)
	Parameters for running code. More...

void	Chroma::taproj (LatticeColorMatrix &a)
	Take the traceless antihermitian projection of a color matrix. More...

void	Chroma::unitarityCheck (const multi1d< LatticeColorMatrixF3 > &u)
	Check the unitarity of color matrix in SU(N) More...

void	Chroma::weakField (multi1d< LatticeColorMatrix > &u)
	Construct a weak field. More...

void	Chroma::read (XMLReader &xml, const std::string &path, WUPPGaugeInitEnv::Params &param)
	Reader. More...

void	Chroma::write (XMLWriter &xml, const std::string &path, const WUPPGaugeInitEnv::Params &param)
	Parameters for running code. More...

Detailed Description

Utility routines for simple manipulation of gauge fields.

Typedef Documentation

◆ TheGaugeInitFactory

typedef SingletonHolder< ObjectFactory<GaugeInit, std::string, TYPELIST_2(XMLReader&, const std::string&), GaugeInit* (*)(XMLReader&, const std::string&), StringFactoryError> > Chroma::TheGaugeInitFactory

Gauge initialization factory (foundry)

Definition at line 24 of file gauge_init_factory.h.

Function Documentation

◆ conjgauge()

void Chroma::conjgauge ( multi1d< LatticeColorMatrix > & u )

Take complex conjugate of gauge field u.

Take complex conjugate of gauge field.

Arguments:

Parameters

u	Gauge field (Modify)
g	Gauge transformation matrices (Write)

Arguments:

Parameters

u	Gauge field (Modify)

Definition at line 20 of file conjgauge.cc.

References Chroma::END_CODE(), mu, Nd, Chroma::START_CODE(), and Chroma::u.

Referenced by main().

◆ constgauge()

void Chroma::constgauge	(	multi1d< LatticeColorMatrix > &	u,
		const multi2d< Real >	theta
	)

Const diagonal gauge field.

Arguments:

Parameters

u	Gauge field (Modify)
theta	Angles (Read)

Definition at line 23 of file constgauge.cc.

References Chroma::END_CODE(), Chroma::i, mu, Nd, Chroma::START_CODE(), and Chroma::u.

Referenced by main().

◆ deriv_recurse()

void Chroma::Stouting::deriv_recurse	(	multi1d< LatticeColorMatrix > &	F,
		const multi1d< bool > &	smear_in_this_dirP,
		const multi2d< Real > &	rho,
		const multi1d< LatticeColorMatrix > &	u
	)

Do the force recursion from level i+1, to level i.

Definition at line 186 of file stout_utils.cc.

References BACKWARD, Chroma::BaryonSpinMats::C(), Chroma::END_CODE(), F, FORWARD, Chroma::Stouting::getFsAndBs(), Chroma::Stouting::getQsandCs(), mu, Nd, nu, Chroma::START_CODE(), tmp3, Chroma::u, and Chroma::zero.

Referenced by Chroma::StoutFermState< T, P, Q >::fatForceToThin(), and Chroma::StoutGaugeState< P, Q >::fatForceToThin().

◆ eesu2()

void Chroma::eesu2 ( LatticeColorMatrix & m )

Exactly exponentiate a SU(2) lie algebra element.

Parameters

m	LatticeColorMatrix (Modify)

Definition at line 18 of file eesu2.cc.

References Chroma::a, Chroma::END_CODE(), m, Chroma::r, Chroma::START_CODE(), Chroma::su2Extract(), and Chroma::sunFill().

Referenced by Chroma::expmat().

◆ eesu3()

void Chroma::eesu3 ( LatticeColorMatrix & iQ )

Exact exponentiation of SU(3) matrix.

Exactly exponentiate a SU(3) lie algebra element.

Input: 3x3 anti-Hermitian, traceless matrix iQ Output: exp(iQ)

Formula for exp(iQ) = f0 + f1*Q + f2*Q*Q is found in section III of hep-lat/0311018.

Parameters

m	LatticeColorMatrix (Modify)

Definition at line 20 of file eesu3.cc.

References Chroma::END_CODE(), std::tr1::f1, std::tr1::f2, Chroma::START_CODE(), and Chroma::u.

Referenced by Chroma::expmat(), and Chroma::Hex_Smear_onestepp().

◆ eeu1()

void Chroma::eeu1 ( LatticeColorMatrix & lambda )

Exactly exponentiate a U(1) lie algebra element.

Parameters

lambda LatticeColorMatrix (Modify)

Definition at line 18 of file eeu1.cc.

References Chroma::a, Chroma::END_CODE(), phi, and Chroma::START_CODE().

Referenced by Chroma::expmat().

◆ expm12()

void Chroma::expm12 ( LatticeColorMatrix & a )

12-th order exponentiation of a lattice color matrix

In place a_ = 1 + a_ + (1/2)*a_^2 + ...+ (1/n!)*(a_)^n n = power

Arguments:

Parameters

a	LatticeColorMatrix (Modify)

Definition at line 21 of file expm12.cc.

References Chroma::a, dummy, Chroma::END_CODE(), Chroma::i, and Chroma::START_CODE().

Referenced by Chroma::expmat(), Chroma::HotSt(), and Chroma::rgauge().

◆ expmat()

void Chroma::expmat	(	LatticeColorMatrix &	a,
		enum ExpMat_t	opt
	)

Exponentiate a SU(n) lie algebra element by some method.

This routine is a driver for other routines. For example, expsu3 will exponentiate EFFICIENTLY an SU(3) matrix and, if desired, check for errors in the truncation of the Taylor series. The routine eesu3 EXACTLY exponentiates a SU(3) matrix.

Parameters

a	LatticeColorMatrix (Modify)
opt	Method of exponentiation (Read)

Definition at line 39 of file expmat.cc.

References Chroma::a, Chroma::eesu2(), Chroma::eesu3(), Chroma::eeu1(), Chroma::END_CODE(), Chroma::EXP_EXACT, Chroma::EXP_TWELFTH_ORDER, Chroma::expm12(), Chroma::expsu3(), Chroma::REUNITARIZE_LABEL, Chroma::START_CODE(), and Chroma::ExpMatEnv::time_spent.

Referenced by Chroma::LCMMDIntegratorSteps::leapQ(), and main().

◆ gaugeStartup()

void Chroma::gaugeStartup	(	XMLReader &	gauge_file_xml,
		XMLReader &	gauge_xml,
		multi1d< LatticeColorMatrix > &	u,
		Cfg_t &	cfg
	)

Initialize the gauge fields.

Parameters

gauge_file_xml	File xml
gauge_xml	Record xml
u	Gauge fields
cfg	Configuration structure

Definition at line 36 of file gauge_startup.cc.

References Chroma::Cfg_t::cfg_file, Chroma::Cfg_t::cfg_type, Chroma::CFG_TYPE_CERN, Chroma::CFG_TYPE_CLASSICAL_SF, Chroma::CFG_TYPE_CPPACS, Chroma::CFG_TYPE_DISORDERED, Chroma::CFG_TYPE_KYU, Chroma::CFG_TYPE_MILC, Chroma::CFG_TYPE_NERSC, Chroma::CFG_TYPE_SCIDAC, Chroma::CFG_TYPE_SZIN, Chroma::CFG_TYPE_SZINQIO, Chroma::CFG_TYPE_UNIT, Chroma::CFG_TYPE_WEAK_FIELD, Chroma::CFG_TYPE_WUPP, Chroma::END_CODE(), Chroma::HotSt(), mu, Nd, params, Chroma::pop(), Chroma::push(), Chroma::readCERN(), Chroma::readCPPACS(), Chroma::readGauge(), Chroma::readKYU(), Chroma::readMILC(), Chroma::readSzin(), Chroma::readWupp(), Chroma::reunit(), Chroma::SchrNonPertGaugeBC::SFBndFld(), Chroma::START_CODE(), Chroma::u, Chroma::weakField(), and Chroma::write().

Referenced by main().

◆ getFs()

void Chroma::Stouting::getFs	(	const LatticeColorMatrix &	Q,
		const LatticeColorMatrix &	QQ,
		multi1d< LatticeComplex > &	f
	)

Given c0 and c1 compute the f-s and b-s.

Definition at line 383 of file stout_utils.cc.

References Chroma::END_CODE(), Chroma::Stouting::getFsAndBs(), and Chroma::START_CODE().

Referenced by Chroma::Stouting::smear_links(), Chroma::Stouting::stout_smear(), and Chroma::wilson_flow_one_step().

◆ getFsAndBs()

void Chroma::Stouting::getFsAndBs	(	const LatticeColorMatrix &	Q,
		const LatticeColorMatrix &	QQ,
		multi1d< LatticeComplex > &	f,
		multi1d< LatticeComplex > &	b1,
		multi1d< LatticeComplex > &	b2,
		bool	do_bs = `true`
	)

Given c0 and c1 compute the f-s and b-s.

Only compute b-s if do_bs is set to true (default)

Definition at line 874 of file stout_utils.cc.

References Chroma::END_CODE(), Chroma::StoutLinkTimings::functions_secs, Chroma::Stouting::StoutUtils::getFsAndBsSiteLoop(), and Chroma::START_CODE().

Referenced by Chroma::Stouting::deriv_recurse(), Chroma::Stouting::getFs(), and main().

◆ getQs()

void Chroma::Stouting::getQs	(	const multi1d< LatticeColorMatrix > &	u,
		LatticeColorMatrix &	Q,
		LatticeColorMatrix &	QQ,
		int	mu,
		const multi1d< bool > &	smear_in_this_dirP,
		const multi2d< Real > &	rho
	)

Given field U, form Q and Q^2.

Definition at line 89 of file stout_utils.cc.

References Chroma::BaryonSpinMats::C(), Chroma::END_CODE(), Chroma::Stouting::getQsandCs(), mu, Chroma::START_CODE(), and Chroma::u.

Referenced by Chroma::Stouting::smear_links(), and Chroma::Stouting::stout_smear().

◆ getQsandCs()

void Chroma::Stouting::getQsandCs	(	const multi1d< LatticeColorMatrix > &	u,
		LatticeColorMatrix &	Q,
		LatticeColorMatrix &	QQ,
		LatticeColorMatrix &	C,
		int	mu,
		const multi1d< bool > &	smear_in_this_dirP,
		const multi2d< Real > &	rho
	)

Given field U, construct the staples into C, form Q and Q^2 and compute c0 and c1.

Definition at line 105 of file stout_utils.cc.

References BACKWARD, Chroma::BaryonSpinMats::C(), Chroma::END_CODE(), FORWARD, mu, Nd, nu, Chroma::START_CODE(), tmp2, tmp3, Chroma::u, and Chroma::zero.

Referenced by Chroma::Stouting::deriv_recurse(), Chroma::Stouting::getQs(), main(), and Chroma::wilson_flow_one_step().

◆ HotSt()

void Chroma::HotSt ( multi1d< LatticeColorMatrix > & u )

Set a gauge field from a sample of (almost) Haar measure.

u = exp(A), where A = random traceless antihermitian matrix.

Arguments:

Parameters

u	Gauge field (Write)

NOTE!!!!: we are using a hack. The twelth_order exponentiation followed by a reunitarization should be replace by an exact exponentiation. So, the gauge field distriubution is NOT from Haar measure, but if someone can think of a really good reason why it should be Haar measure, then something can be done about it.

Definition at line 34 of file hotst.cc.

References Chroma::END_CODE(), Chroma::expm12(), Chroma::gaussian(), mu, Nd, Chroma::reunit(), Chroma::START_CODE(), Chroma::taproj(), and Chroma::u.

Referenced by Chroma::gaugeStartup(), main(), and Chroma::DisorderedGaugeInitEnv::GaugeIniter::operator()().

◆ instanton()

void Chroma::instanton	(	multi1d< LatticeColorMatrix > &	u_inst,
		const multi1d< Real > &	center,
		Real	rho,
		int	su2_index,
		int	sign
	)

Instanton construction.

Arguments:

Parameters

u_inst	Gauge field (Write)
center	location of instanton center ( Read )
rho	size of instanton ( Read )
su2_index	SU(2) subgroup index ( Read )
sign	instanton (1) or anti-instanton ( Read )

Definition at line 18 of file instanton.cc.

References Chroma::a, Chroma::cb, copymask(), Chroma::END_CODE(), ftmp2, itmp, mu, Nd, Chroma::PLUS, Chroma::QDP_error_exit(), Chroma::START_CODE(), su2_index, Chroma::sunFill(), tmp2, and Chroma::zero.

Referenced by main().

◆ read() [1/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		CERNGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 17 of file cern_gauge_init.cc.

References Chroma::tmp.

◆ read() [2/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		CPPACSGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 15 of file cppacs_gauge_init.cc.

References Chroma::tmp.

◆ read() [3/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		KYUGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 15 of file kyu_gauge_init.cc.

References Chroma::tmp.

◆ read() [4/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		MILCGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 15 of file milc_gauge_init.cc.

References Chroma::tmp.

◆ read() [5/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		NERSCGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 15 of file nersc_gauge_init.cc.

References Chroma::tmp.

◆ read() [6/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		SFGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 18 of file sf_gauge_init.cc.

References Chroma::tmp.

◆ read() [7/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		SZINGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 15 of file szin_gauge_init.cc.

References Chroma::tmp.

◆ read() [8/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		SZINQIOGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 16 of file szinqio_gauge_init.cc.

References Chroma::tmp.

◆ read() [9/9]

void Chroma::read	(	XMLReader &	xml,
		const std::string &	path,
		WUPPGaugeInitEnv::Params &	param
	)

Reader.

Definition at line 15 of file wupp_gauge_init.cc.

References Chroma::tmp.

◆ rgauge() [1/2]

void Chroma::rgauge ( multi1d< LatticeColorMatrix > & u )

Do a random gauge transformation on the u fields.

Convenience function: does not return gauge transformation matrices

Arguments:

Parameters

u	Gauge field (Modify)

Definition at line 63 of file rgauge.cc.

References Chroma::END_CODE(), Chroma::rgauge(), Chroma::START_CODE(), and Chroma::u.

◆ rgauge() [2/2]

void Chroma::rgauge	(	multi1d< LatticeColorMatrix > &	u,
		LatticeColorMatrix &	g
	)

Do a random gauge transformation on the u fields.

Arguments:

Parameters

u	Gauge field (Modify)
g	Gauge transformation matrices (Write)

Definition at line 24 of file rgauge.cc.

References Chroma::END_CODE(), Chroma::expm12(), FORWARD, Chroma::gaussian(), mu, Nd, Chroma::reunit(), Chroma::START_CODE(), Chroma::taproj(), and Chroma::u.

Referenced by main(), Chroma::InlineRandomTransfGaugeEnv::InlineMeas::operator()(), and Chroma::rgauge().

◆ shift2()

LatticeColorMatrix Chroma::shift2	(	const LatticeColorMatrix &	s1,
		int	isign,
		int	dir,
		int	level
	)

A simple not-fancy power of 2 shift.

Definition at line 13 of file shift2.cc.

References Chroma::d, Chroma::END_CODE(), Chroma::isign, Chroma::START_CODE(), and Chroma::tmp.

Referenced by Chroma::APE_Smear(), Chroma::block(), Chroma::gluecor(), and Chroma::polycor().

◆ smear_links()

void Chroma::Stouting::smear_links	(	const multi1d< LatticeColorMatrix > &	current,
		multi1d< LatticeColorMatrix > &	next,
		const multi1d< bool > &	smear_in_this_dirP,
		const multi2d< Real > &	rho
	)

Do the smearing from level i to level i+1.

Definition at line 936 of file stout_utils.cc.

References Chroma::END_CODE(), Chroma::Stouting::getFs(), Chroma::Stouting::getQs(), mu, Nd, and Chroma::START_CODE().

Referenced by Chroma::StoutFermState< T, P, Q >::create(), Chroma::StoutGaugeState< P, Q >::create(), Chroma::StoutLinkSmearingEnv::LinkSmear::operator()(), and Chroma::wilson_flow_one_step().

◆ stout_smear()

void Chroma::Stouting::stout_smear	(	LatticeColorMatrix &	next,
		const multi1d< LatticeColorMatrix > &	current,
		int	mu,
		const multi1d< bool > &	smear_in_this_dirP,
		const multi2d< Real > &	rho
	)

Stout smear in a specific link direction.

Definition at line 970 of file stout_utils.cc.

References Chroma::END_CODE(), Chroma::Stouting::getFs(), Chroma::Stouting::getQs(), mu, and Chroma::START_CODE().

Referenced by main().

◆ su2Extract()

void Chroma::su2Extract	(	multi1d< LatticeReal > &	r,
		const LatticeColorMatrix &	source,
		int	su2_index,
		const Subset &	s
	)

Su2_extract: r_0,r_1,r_2,r_3 <- source(su2_index) [SU(N) field] under a subset.

Extract components r_k proportional to SU(2) submatrix su2_index from the "SU(Nc)" matrix V. The SU(2) matrix is parametrized in the sigma matrix basis.

There are Nc*(Nc-1)/2 unique SU(2) submatrices in an SU(Nc) matrix. The user does not need to know exactly which one is which, just that they are unique.

Arguments:

Parameters

r	su(2) matrix represented in the O(4) rep. - an array of LatticeReal
source	extract the su2 matrix from this su(n) gauge field
su2_index	int lying in [0, Nc*(Nc-1)/2)
s	subset for operations (Read)

Definition at line 86 of file su2extract.cc.

References Chroma::r, Chroma::s(), su2_index, and Chroma::su2Extract_t().

Referenced by Chroma::eesu2(), Chroma::grelax(), Chroma::su2_hb_update(), Chroma::su3hb(), Chroma::su3over(), and Chroma::su3proj_t().

◆ su2Extract_t()

template<typename S >

void Chroma::su2Extract_t	(	multi1d< LatticeReal > &	r,
		const LatticeColorMatrix &	source,
		int	su2_index,
		const S &	s
	)

inline

Su2_extract: r_0,r_1,r_2,r_3 <- source(su2_index) [SU(N) field] under a subset.

Extract components r_k proportional to SU(2) submatrix su2_index from the "SU(Nc)" matrix V. The SU(2) matrix is parametrized in the sigma matrix basis.

There are Nc*(Nc-1)/2 unique SU(2) submatrices in an SU(Nc) matrix. The user does not need to know exactly which one is which, just that they are unique.

Arguments:

Parameters

r	su(2) matrix represented in the O(4) rep. - an array of LatticeReal
source	extract the su2 matrix from this su(n) gauge field
su2_index	int lying in [0, Nc*(Nc-1)/2)
s	subset for operations (Read)

Definition at line 34 of file su2extract.cc.

References Chroma::END_CODE(), index, Chroma::r, Chroma::s(), Chroma::START_CODE(), and su2_index.

Referenced by Chroma::su2Extract().

◆ sunFill()

void Chroma::sunFill	(	LatticeColorMatrix &	dest,
		const multi1d< LatticeReal > &	r,
		int	su2_index,
		const Subset &	s
	)

Fill a dest(su2_index) <- r_0,r_1,r_2,r_3 under a subset.

Fill an SU(Nc) matrix V with the SU(2) submatrix su2_index paramtrized by b_k in the sigma matrix basis.

Fill in B from B_SU(2) = b0 + i sum_k bk sigma_k

There are Nc*(Nc-1)/2 unique SU(2) submatrices in an SU(Nc) matrix. The user does not need to know exactly which one is which, just that they are unique.

Arguments:

Parameters

dest	su(n) matrix
r	su2 matrix represented in the O(4) rep. - an array of LatticeReal
su2_index	int lying in [0, Nc*(Nc-1)/2)
s	subset for operations (Read)

Definition at line 33 of file sunfill.cc.

References Chroma::END_CODE(), index, Chroma::r, Chroma::s(), Chroma::START_CODE(), and su2_index.

Referenced by Chroma::eesu2(), Chroma::grelax(), Chroma::instanton(), Chroma::rot_colvec(), Chroma::su2_hb_update(), Chroma::su3hb(), Chroma::su3over(), Chroma::su3proj_t(), and Chroma::weakField().

◆ taproj()

void Chroma::taproj ( LatticeColorMatrix & a )

Take the traceless antihermitian projection of a color matrix.

a = (1/2)[a - a_dag] - Tr[(1/2)*(a - a_dag)]/Nc

that is the anti-hermitian traceless part of a

Arguments:

Parameters

a	LatticeColorMatrix (Modify)

Definition at line 31 of file taproj.cc.

References Chroma::a, Chroma::aux, Chroma::aux_1, Chroma::END_CODE(), Chroma::START_CODE(), Chroma::TaprojEnv::time_spent, and Chroma::tmp.

Referenced by Chroma::forceMonitorCalc(), Chroma::InlineGlueballOpsEnv::InlineMeas::func(), Chroma::InlineSpectrum::func(), Chroma::Hex_Smear_onestepp(), Chroma::HotSt(), Chroma::LCMMDIntegratorSteps::leapP(), main(), Chroma::ConstLatColMatHMCTrj::refreshP(), Chroma::LatColMatHMCTrj::refreshP(), and Chroma::rgauge().

◆ unitarityCheck()

void Chroma::unitarityCheck ( const multi1d< LatticeColorMatrixF3 > & u )

Check the unitarity of color matrix in SU(N)

Parameters

u	The LatticeColorMatrix to be tested
u	The multi1d<LatticeColorMatrix> to be tested

Definition at line 20 of file unit_check.cc.

References Chroma::END_CODE(), mu, Nd, numbad, Chroma::reunit(), Chroma::REUNITARIZE_ERROR, Chroma::START_CODE(), and Chroma::u.

Referenced by main(), Chroma::InlineCoulGaugeEnv::InlineMeas::operator()(), and Chroma::InlineLinkSmearEnv::InlineMeas::operator()().

◆ weakField()

void Chroma::weakField ( multi1d< LatticeColorMatrix > & u )

Construct a weak field.

Make a gauge field close to free field - e.g., small fluctations

Arguments:

Parameters

u	Gauge field (Modify)

Arguments:

Parameters

u	Gauge field (Modify)

Definition at line 22 of file weak_field.cc.

References Chroma::a, Chroma::END_CODE(), mu, Nd, Chroma::START_CODE(), su2_index, Chroma::sunFill(), Chroma::twopi, and Chroma::u.

Referenced by Chroma::gaugeStartup(), and Chroma::WeakGaugeInitEnv::GaugeIniter::operator()().

◆ write() [1/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const CERNGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 24 of file cern_gauge_init.cc.

References Chroma::CERNGaugeInitEnv::Params::writeXML().

◆ write() [2/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const CPPACSGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 22 of file cppacs_gauge_init.cc.

References Chroma::CPPACSGaugeInitEnv::Params::writeXML().

◆ write() [3/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const KYUGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 22 of file kyu_gauge_init.cc.

References Chroma::KYUGaugeInitEnv::Params::writeXML().

◆ write() [4/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const MILCGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 22 of file milc_gauge_init.cc.

References Chroma::MILCGaugeInitEnv::Params::writeXML().

◆ write() [5/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const NERSCGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 22 of file nersc_gauge_init.cc.

References Chroma::NERSCGaugeInitEnv::Params::writeXML().

◆ write() [6/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const SFGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 25 of file sf_gauge_init.cc.

References Chroma::SFGaugeInitEnv::Params::writeXML().

◆ write() [7/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const SZINGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 22 of file szin_gauge_init.cc.

References Chroma::SZINGaugeInitEnv::Params::writeXML().

◆ write() [8/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const SZINQIOGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 23 of file szinqio_gauge_init.cc.

References Chroma::SZINQIOGaugeInitEnv::Params::writeXML().

◆ write() [9/9]

void Chroma::write	(	XMLWriter &	xml,
		const std::string &	path,
		const WUPPGaugeInitEnv::Params &	param
	)

Parameters for running code.

Writer.

Definition at line 22 of file wupp_gauge_init.cc.

References Chroma::WUPPGaugeInitEnv::Params::writeXML().

Files

Classes

Typedefs

Functions

Detailed Description

Typedef Documentation

◆ TheGaugeInitFactory

Function Documentation

◆ conjgauge()

◆ constgauge()

◆ deriv_recurse()

◆ eesu2()

◆ eesu3()

◆ eeu1()

◆ expm12()

◆ expmat()

◆ gaugeStartup()

◆ getFs()

◆ getFsAndBs()

◆ getQs()

◆ getQsandCs()

◆ HotSt()

◆ instanton()

◆ read() [1/9]

◆ read() [2/9]

◆ read() [3/9]

◆ read() [4/9]

◆ read() [5/9]

◆ read() [6/9]

◆ read() [7/9]

◆ read() [8/9]

◆ read() [9/9]

◆ rgauge() [1/2]

◆ rgauge() [2/2]

◆ shift2()

◆ smear_links()

◆ stout_smear()

◆ su2Extract()

◆ su2Extract_t()

◆ sunFill()

◆ taproj()

◆ unitarityCheck()

◆ weakField()

◆ write() [1/9]

◆ write() [2/9]

◆ write() [3/9]

◆ write() [4/9]

◆ write() [5/9]

◆ write() [6/9]

◆ write() [7/9]

◆ write() [8/9]

◆ write() [9/9]