#include <tdvp_worker.h>

Collaboration diagram for syten::MPS::TDVP::Worker:

Public Member Functions
MemoryUsage::MemorySize	allocSize () const
	Returns size. More...

MemoryUsage::MemorySize	cacheSize () const
	Returns cache size. More...

void	calcContr (Index startingPosition, bool const verbose=false)
	Calculate full set of contractions, i.e. More...

void	calcContrL (Index const where, bool initialized_timer)
	Calculate the new left-contraction on the specified site. More...

void	calcContrR (Index const where, bool initialized_timer)
	Calculate the new right-contraction on the specified site.g It must be right-normalised and contractions to the right must exist. More...

bool	checkSignals () const
	Return false if we must exit due to having received some signal. More...

void	clearUnneeded ()
	Destroys unneeded tensors in PTDVP. More...

IterativeExit	evolveBond (Tensor< 2 > &bond, const SDef prefactor)
	Evolve on a bond, reads/writes to `bond` argument. More...

IterativeExit	evolveSite (Index where, SDef const prefactor)
	Evolve a single site, reads/writes to psi directly. More...

IterativeExit	evolveTwo (Tensor< 4 > &merged, SDef const prefactor, Index const lSite, Index const rSite)
	Evolve two sites, reads/writes to `merged` argument. More...

std::vector< Tensor< 3 > >	expand_to_left ()
	Creats subspace expansion tensor for the left bond. More...

std::vector< Tensor< 3 > >	expand_to_right ()
	Creats subspace expansion tensor for the right bond. More...

syten::Vec< State >	gse_build_krylov_vectors (bool initialized_timer=true)
	Builds Krylov vectors for subspace expansion. More...

Tensor< 3 >	gse_create_expanded (syten::Vec< State >const &ancillary_states, Index site)
	Create expanded right-normalized tensor for GSE-TDVP method. More...

void	gse_enrich_state (bool initialized_timer=true)
	Performs global subspace expansion for GSE-TDVP method. More...

Tensor< 2 >	gse_expand_bond (syten::Vec< State > &ancillary_states, Index site)
	Perform subspace expansion for a single bond. More...

void	gse_shift_orth_center (State &state, Tensor< 3 >const &rtensor, Index site, bool is_state=false)
	Shifts orthogonality center for GSE-TDVP method. More...

template<class Archive >
void	load (Archive &ar, unsigned int const in_version)
	Serialization. More...

Tensor< 2 >	locally_expand_bond ()
	Returns the locally expanded bond of a site tensor. More...

template<typename... Args>
void	logTrace (int level, Args &&... data) const
	Log some tracing information. More...

Tensor< 2 >	normL (Index where)
	Left-normalise tensor on site `where` and return the left-over bit. More...

Tensor< 2 >	normR (Index where)
	Right-normalise tensor on site `where` and return the left-over bit \( \Psi(\textrm{where}) \to U S \Psi(\textrm{where}) \). More...

Worker &	operator= (Worker &&other)
	Move operator. More...

Worker &	operator= (Worker const &other)
	Copy operator. More...

template<class Archive >
void	save (Archive &ar, const unsigned int v) const
	Overload to satisfy boost. More...

template<class Archive >
void	save (Archive &ar, unsigned int const in_version)
	Serialization. More...

void	sweep ()
	Runs a sweep in the direction specified by `dir`. More...

void	sweepLeft ()
	Runs a left sweep. More...

void	sweepLeftTwoSite ()
	Runs a left sweep with a two site step. More...

void	sweepRight ()
	Runs a right sweep. More...

void	sweepRightTwoSite ()
	Runs a right sweep with a two site step. More...

void	sync (Tensor< 2 > &connector, Tensor< 3 > &rPsi, std::vector< Tensor< 3 > > const &rContr, std::vector< Tensor< 3 > > &lContr, SRDef const forward_prefactor=1., SRDef const backward_prefactor=1.)
	Syncs between worker segments. More...

void	sync (Tensor< 2 > &connector, Worker &right, int const numberOfSites)
	Moves boundary of worker to the right by `numberOfSites`. More...

	Worker ()=default
	Default ctor. More...

	Worker (std::vector< Operator > &&op_, State &&psi_, Conf &&conf_, Tensor< 2 > &c, Index const lbound, Index const rbound)
	Standard ctor. More...

	Worker (Worker &&other)
	Move constructor. More...

Public Attributes
Conf	conf
	configuration More...

std::vector< AsyncCached< std::vector< Tensor< 3 > > > >	contrL
	contractions of op and state to the left of the current site More...

std::vector< AsyncCached< std::vector< Tensor< 3 > > > >	contrR
	contractions of op and state to the right of the currens site More...

SweepDirection	dir
	current sweeping direction (left/right) More...

Errors	errs
	Keeping track of all the errors. More...

bool	gse_above_threshold = false
	whether variational operator application is allowed in the next GSE step More...

bool	gse_expand = true
	whether to do subspace expansion in the next step in GSE mode More...

Index	gse_num_saturated = 0
	how many sites have reached the maximum possible/ allowed bond dimension More...

Index	lbound
	Left most site to be updated. More...

std::vector< Index >	left_max_bdim
	left max bdim at site More...

Index	length
	Total system size. More...

std::vector< Operator >	ops
	Operator H in exp(-i dt H) More...

Index	position
	the current position More...

State	psi
	current state More...

Index	rbound
	Right most site to be updated. More...

SweepDirection	rel_dir
	current relative sweeping direction (forward/backward) More...

std::vector< Index >	right_max_bdim
	right max bdim at site More...

Timer	timer
	Each worker keeps track of its timings. More...

SRDef	total_norm_change = 1
	Tracks the total norm change. More...

Static Public Attributes
static constexpr unsigned int	version = 2
	Bump this if the data above changes. More...

Detailed Description

TDVP worker.

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

inc/mps/tdvp_worker.h
inc/mps/tdvp_worker.cpp

Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description