Two-particle vertex implementation for SU(2) models. More...

#include <SU2VertexTwoParticle.hpp>

Public Types
enum	Symmetry : int { Symmetry::Spin = 0, Symmetry::Density = 1 }
	Enumeration of the different vertex channels. More...

enum	FrequencyChannel { FrequencyChannel::S, FrequencyChannel::T, FrequencyChannel::U, FrequencyChannel::All, FrequencyChannel::None }
	Indicator for frequency channels that exactly lie on frequency mesh points. More...

Public Member Functions
	SU2VertexTwoParticle ()
	Construct a new SU2VertexTwoParticle object and initialize all entries to zero.

	~SU2VertexTwoParticle ()
	Destroy the SU2VertexTwoParticle object.

void	expandIterator (int iterator, LatticeIterator &i1, float &s, float &t, float &u) const
	Expand a linear iterator in the range [0,size) that iterates over all vertex entries. More...

void	expandIterator (int iterator, float &s, float &t, float &u) const
	Expand a linear iterator in the range [0,sizeFrequency) that iterates over all paramtetrized frequency values. More...

float &	getValueRef (const int iterator, const SU2VertexTwoParticle::Symmetry symmetry) const
	Directly access a vertex value via a linear iterator in the range [0,size). More...

float	getValue (LatticeIterator i1, LatticeIterator i2, float s, float t, float u, const SU2VertexTwoParticle::Symmetry symmetry, const SU2VertexTwoParticle::FrequencyChannel channel) const
	Access vertex value at arbitrary lattice sites, frequencies, and symmetry. More...

template<int n>
float	getValue (const LatticeIterator i1, const LatticeIterator i2, const SU2VertexTwoParticle::Symmetry symmetry, const SU2VertexTwoParticleAccessBuffer< n > &accessBuffer) const
	Access vertex value at arbitrary lattice sites and symmetry via a given access buffer. More...

template<int n>
float	getValueLocal (const SU2VertexTwoParticle::Symmetry symmetry, const SU2VertexTwoParticleAccessBuffer< n > &accessBuffer) const
	Access vertex value locally at arbitrary symmetry via a given access buffer. More...

template<int n>
void	getValueSuperbundle (const SU2VertexTwoParticleAccessBuffer< n > &accessBuffer, ValueSuperbundle< float, 2 > &superbundle) const
	Bundled vertex access on all lattice sites and symmetries simultaneously via a given access buffer. More...

SU2VertexTwoParticleAccessBuffer< 4 >	generateAccessBuffer (float s, float t, float u, const SU2VertexTwoParticle::FrequencyChannel channel) const
	Generate an access buffer for a set of frequencies where one of them (specified by channel) exactly lies on the frequency mesh. Frequency channel must be either FrequencyChannel::S, FrequencyChannel::T, FrequencyChannel::U. More...

SU2VertexTwoParticleAccessBuffer< 8 >	generateAccessBuffer (float s, float t, float u) const
	Generate an access buffer for an arbitrary set of frequencies. More...

float	_directAccessMapFrequencyExchange (const int siteOffset, const int sOffset, const int tOffset, const int uOffset, const SU2VertexTwoParticle::Symmetry symmetry) const
	Directly access a vertex via given frequency and site offsets, where sOffset may be lesser than uOffset. More...

float	_directAccess (const int siteOffset, const int sOffset, const int tOffset, const int uOffset, const SU2VertexTwoParticle::Symmetry symmetry) const
	Directly access a vertex via given frequency and site offsets, where sOffset >= uOffset. More...

int	_generateAccessBufferOffset (const int sOffset, const int tOffset, const int uOffset, int &signFlag) const
	Calculate the total memory offset (number of elements) from given frequency offsets, where sOffset may be lesser than uOffset. More...

Public Attributes
int	size
	Size of the vertex per vertex channel (number of elements).

int	sizeFrequency
	Size of the vertex per vertex channel in the frequency subspace (number of elements).

float *	_dataSS
	Spin channel of the vertex.

float *	_dataDD
	Density channel of the vertex.

int	_memoryStepLatticeT
	Memory stride width in the last-2 dimension.

int	_memoryStepLattice
	Memory stride width in the last-1 dimension.

Detailed Description

Two-particle vertex implementation for SU(2) models.

Member Enumeration Documentation

◆ FrequencyChannel

enum SU2VertexTwoParticle::FrequencyChannel

strong

Indicator for frequency channels that exactly lie on frequency mesh points.

Enumerator
S	s-channel.
T	t-channel.
U	u-channel.
All	All channels.
None	No channel.

◆ Symmetry

enum SU2VertexTwoParticle::Symmetry : int

strong

Enumeration of the different vertex channels.

Enumerator
Spin	Spin-type vertex.
Density	Density-type vertex.

Member Function Documentation

◆ _directAccess()

float SU2VertexTwoParticle::_directAccess	(	const int	siteOffset,
		const int	sOffset,
		const int	tOffset,
		const int	uOffset,
		const SU2VertexTwoParticle::Symmetry	symmetry
	)		const

inline

Directly access a vertex via given frequency and site offsets, where sOffset >= uOffset.

Parameters

siteOffset	Lattice site offset (number of elements).
sOffset	First frequency offset (number of elements).
tOffset	Second frequency offset (number of elements).
uOffset	Third frequency offset (number of elements).
symmetry	Vertex channel.

Returns: float Vertex value.

◆ _directAccessMapFrequencyExchange()

float SU2VertexTwoParticle::_directAccessMapFrequencyExchange	(	const int	siteOffset,
		const int	sOffset,
		const int	tOffset,
		const int	uOffset,
		const SU2VertexTwoParticle::Symmetry	symmetry
	)		const

inline

Directly access a vertex via given frequency and site offsets, where sOffset may be lesser than uOffset.

Parameters

siteOffset	Lattice site offset (number of elements).
sOffset	First frequency offset (number of elements).
tOffset	Second frequency offset (number of elements).
uOffset	Third frequency offset (number of elements).
symmetry	Vertex channel.

Returns: float Vertex value.

◆ _generateAccessBufferOffset()

int SU2VertexTwoParticle::_generateAccessBufferOffset	(	const int	sOffset,
		const int	tOffset,
		const int	uOffset,
		int &	signFlag
	)		const

inline

Calculate the total memory offset (number of elements) from given frequency offsets, where sOffset may be lesser than uOffset.

Parameters

[in]	sOffset	First frequency offset (number of elements).
[in]	tOffset	Second frequency offset (number of elements).
[in]	uOffset	Third frequency offset (number of elements).
[out]	signFlag	Sign flag to be stored in the access buffer.

Returns: int Memory offset (number of elements).

◆ expandIterator() [1/2]

void SU2VertexTwoParticle::expandIterator	(	int	iterator,
		float &	s,
		float &	t,
		float &	u
	)		const

inline

Expand a linear iterator in the range [0,sizeFrequency) that iterates over all paramtetrized frequency values.

Parameters

[in]	iterator	Linear iterator.
[out]	s	First frequency argument.
[out]	t	Second frequency argument.
[out]	u	Third frequency argument.

◆ expandIterator() [2/2]

void SU2VertexTwoParticle::expandIterator	(	int	iterator,
		LatticeIterator &	i1,
		float &	s,
		float &	t,
		float &	u
	)		const

inline

Expand a linear iterator in the range [0,size) that iterates over all vertex entries.

Parameters

[in]	iterator	Linear iterator.
[out]	i1	Lattice site iterator.
[out]	s	First frequency argument.
[out]	t	Second frequency argument.
[out]	u	Third frequency argument.

◆ generateAccessBuffer() [1/2]

SU2VertexTwoParticleAccessBuffer<8> SU2VertexTwoParticle::generateAccessBuffer	(	float	s,
		float	t,
		float	u
	)		const

inline

Generate an access buffer for an arbitrary set of frequencies.

Parameters

s	First frequency argument.
t	Second frequency argument.
u	Third frequency argument.

Returns: SU2VertexTwoParticleAccessBuffer<8> Access buffer.

◆ generateAccessBuffer() [2/2]

SU2VertexTwoParticleAccessBuffer<4> SU2VertexTwoParticle::generateAccessBuffer	(	float	s,
		float	t,
		float	u,
		const SU2VertexTwoParticle::FrequencyChannel	channel
	)		const

inline

Generate an access buffer for a set of frequencies where one of them (specified by channel) exactly lies on the frequency mesh. Frequency channel must be either FrequencyChannel::S, FrequencyChannel::T, FrequencyChannel::U.

Parameters

s	First frequency argument.
t	Second frequency argument.
u	Third frequency argument.
channel	Frequency channel.

Returns: SU2VertexTwoParticleAccessBuffer<4> Access buffer.

◆ getValue() [1/2]

template<int n>

float SU2VertexTwoParticle::getValue	(	const LatticeIterator	i1,
		const LatticeIterator	i2,
		const SU2VertexTwoParticle::Symmetry	symmetry,
		const SU2VertexTwoParticleAccessBuffer< n > &	accessBuffer
	)		const

inline

Access vertex value at arbitrary lattice sites and symmetry via a given access buffer.

Template Parameters

n	Number of support sites in the access buffer.

Parameters

i1	First lattice site argument.
i2	Second lattice site argument.
symmetry	Vertex channel.
accessBuffer	Access buffer.

Returns: float Vertex value.

◆ getValue() [2/2]

float SU2VertexTwoParticle::getValue	(	LatticeIterator	i1,
		LatticeIterator	i2,
		float	s,
		float	t,
		float	u,
		const SU2VertexTwoParticle::Symmetry	symmetry,
		const SU2VertexTwoParticle::FrequencyChannel	channel
	)		const

inline

Access vertex value at arbitrary lattice sites, frequencies, and symmetry.

Parameters

i1	First lattice site argument.
i2	Second lattice site argument.
s	First frequency argument.
t	Second frequency argument.
u	Third frequency argument.
symmetry	Vertex channel.
channel	Frequency channel.

Returns: float Vertex value.

◆ getValueLocal()

template<int n>

float SU2VertexTwoParticle::getValueLocal	(	const SU2VertexTwoParticle::Symmetry	symmetry,
		const SU2VertexTwoParticleAccessBuffer< n > &	accessBuffer
	)		const

inline

Access vertex value locally at arbitrary symmetry via a given access buffer.

Template Parameters

n	Number of support sites in the access buffer.

Parameters

symmetry	Vertex channel.
accessBuffer	Access buffer.

Returns: float Vertex value.

◆ getValueRef()

float& SU2VertexTwoParticle::getValueRef	(	const int	iterator,
		const SU2VertexTwoParticle::Symmetry	symmetry
	)		const

inline

Directly access a vertex value via a linear iterator in the range [0,size).

Parameters

iterator	Linear iterator.
symmetry	Vertex channel.

Returns: float& Vertex value.

◆ getValueSuperbundle()

template<int n>

void SU2VertexTwoParticle::getValueSuperbundle	(	const SU2VertexTwoParticleAccessBuffer< n > &	accessBuffer,
		ValueSuperbundle< float, 2 > &	superbundle
	)		const

inline

Bundled vertex access on all lattice sites and symmetries simultaneously via a given access buffer.

Template Parameters

n	Number of support sites in the access buffer.

Parameters

[in]	accessBuffer	Access buffer.
[out]	superbundle	Vertex value bundle.

The documentation for this struct was generated from the following file:

/home/runner/work/SpinParser/SpinParser/src/SU2/SU2VertexTwoParticle.hpp

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ FrequencyChannel

◆ Symmetry

Member Function Documentation

◆ _directAccess()

◆ _directAccessMapFrequencyExchange()

◆ _generateAccessBufferOffset()

◆ expandIterator() [1/2]

◆ expandIterator() [2/2]

◆ generateAccessBuffer() [1/2]

◆ generateAccessBuffer() [2/2]

◆ getValue() [1/2]

◆ getValue() [2/2]

◆ getValueLocal()

◆ getValueRef()

◆ getValueSuperbundle()