Parallel TDVP run, containing TDVP workers executing the actual calculations. More...

#include <tdvp_parallel.h>

Collaboration diagram for syten::MPS::TDVP::PTDVP< enable >:

Public Member Functions
void	do_step ()
	Does an entire time step sweeping forward and backward. More...

Conf const &	get_conf () const
	Get const lvalue ref to internal config, used by Python module. More...

Errors const &	get_errs () const
	Returns the total errors. More...

GSEConf const &	get_gse_conf () const
	Get const lvalue ref to internal GSE config, used by Python module. More...

SRDef	get_last_norm () const
	Returns the last norm. More...

State	get_psi (bool const move=false, bool const verbose=false)
	Creates the full MPS from the partial MPSes in the workers. More...

State const &	get_ref_psi () const
	Gives a const ref. More...

syten::TDVP::Mode	get_tdvp_mode ()
	Returns the current TDVP Mode More...

SDef	get_tdvp_timestep ()
	Returns the current TDVP timestep More...

std::vector< Timer >	get_timers () const
	Return timers. More...

SRDef	get_total_norm_change () const
	Returns the current norm. More...

void	init_timers ()
	Initialises the timer. More...

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

template<typename... Args>
void	logTrace (Index const rank, int const level, Args &&... whatever) const
	Log tracing information. More...

void	logTrace (Index const, int const level, Args &&... whatever) const

Index	mpi_rank () const

Index	mpi_size () const

PTDVP &	operator= (PTDVP &&other)
	Move assignment operator. More...

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

	PTDVP (PTDVP &&other)
	Move ctor. More...

	PTDVP (State &&psi_, std::vector< Operator > &&ops_, Conf &&conf_, std::vector< Index > &&rbounds_)
	Standard ctor, constructs and assigns the worker objects and prepares the calculation. More...

bool	reached_final_T () const
	True if final time is reached. More...

void	run (int argc, char **argv, bool const do_step_=false)
	Run TDVP. More...

void	save () const

void	save () const
	Sends necessary data for serialization to main thread. More...

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

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

void	set_gse_conf (GSEConf new_conf)
	Overwrites the current TDVP GSE Conf. More...

void	set_tdvp_mode (syten::TDVP::Mode new_mode)
	Overwrites the current TDVP Mode. More...

void	set_tdvp_timestep (SDef time_step)
	Overwrites the current TDVP timestep. More...

Static Public Attributes
static constexpr unsigned int	version = 1
	Bump this if data changes. More...

Private Member Functions
void	check_norms_renormalise (Vec< SRDef > const &n)

void	check_norms_renormalise (Vec< SRDef > const &n)
	Check norms and renormalise. More...

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

std::vector< SRDef >	compute_norms () const

std::vector< SRDef >	compute_norms () const
	Compute norms. More...

template<typename T >
void	init_distribute (Index const t, T &input, T &target) const
	Distribute data in setup. More...

void	init_distribute (Index const t, T &input, T &target) const

void	init_worker (Index const t, std::vector< Operator > &&op, State &&psi, Vec< Conf > &confs, Tensor< 2 > &c, Index const lbound, Index const rbound)

void	init_worker (Index const t, std::vector< Operator > &&op, State &&psi, Vec< Conf > &confs, Tensor< 2 > &c, Index const lbound, Index const rbound)
	Initialises workers. More...

void	mpi_clear (std::vector< T > &) const

void	mpi_clear_save ()

void	mpi_comm_after_sync ()

void	mpi_comm_before_sync ()

void	mpi_init (bool const)

void	mpi_sync_errs ()

void	mpi_sync_positions ()

void	mpi_sync_save ()

void	mpi_sync_zero_pos ()

void	print_timers () const

void	print_timers () const
	Prints timers. More...

std::string	saveState (bool const verbose=false)
	Saves the state to disk and returns the filename used. More...

void	sweep ()

void	sweep ()
	Performs the actual sweeping. More...

void	sync (SRDef const forward_prefactor, SRDef const backward_prefactor, std::string const &id)

void	sync (SRDef const forward_prefactor, SRDef const backward_prefactor, std::string const &id)
	Performs sync of the boundaries. More...

std::vector< State >	sync_state (bool const move)

std::vector< State >	sync_state (bool const move)
	Sync to construct state. More...

Private Attributes
Conf	conf
	Config containing the parameters. More...

std::vector< Tensor< 2 > >	connections
	vector of connectors between consecutive segments, already inverted More...

Errors	errs
	Total errors. More...

SRDef	last_norm = 1
	norm after last time step More...

Index	length
	Total system size. More...

Index	numWorkers
	number of workers, constant throughout the calculation More...

SRDef	total_norm_change = 1
	Total norm change during time evolution. More...

std::vector< Worker >	workers
	vector of worker objects More...

Static Private Attributes
static std::string const	uuid = "877097c2-ceba-11eb-b8bc-0242ac130003"
	UUID. More...

MPI related stuff.
mpi::Communicator	world = SYTEN_MPI_VOID_COMMUNICATOR
	Used for MPI communication. More...

static constexpr mpi::Enable	enabled = enable
	Stores switch. More...

void	mpi_init (bool const is_copy)
	Initialises communicator. More...

void	mpi_comm_before_sync ()
	Communication before sync. More...

void	mpi_comm_after_sync ()
	Communication after sync. More...

void	mpi_sync_positions ()
	Syncronize all worker positions to main. More...

void	mpi_sync_zero_pos ()
	Syncronizes zero position of all workers. More...

template<typename T >
void	mpi_clear (std::vector< T > &v) const
	Clear all but this slot. More...

void	mpi_sync_errs ()
	Syncs all errors to main worker. More...

void	mpi_sync_save ()
	Syncs workers and connectors before serialization. More...

void	mpi_clear_save ()
	Clears unnecessary stuff afterwards. More...

Index	mpi_size () const
	Number of slots. More...

Index	mpi_rank () const
	Current rank. More...

bool	mpi_main () const
	One of these is not like the others. More...

Detailed Description

template<mpi::Enable enable = mpi::Enable::No>
class syten::MPS::TDVP::PTDVP< enable >

Parallel TDVP run, containing TDVP workers executing the actual calculations.

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

inc/mps/tdvp_parallel.h

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Static Private Attributes

MPI related stuff.

Detailed Description