Abstract class for variational TNS-addition. More...

#include <variational_add.h>

Inheritance diagram for syten::VariationalAdd::Adder< Workspace >:

Collaboration diagram for syten::VariationalAdd::Adder< Workspace >:

Public Member Functions
	Adder ()=delete
	Default ctor deleted. More...

	Adder (Adder &&)=default
	Move ctor defaulted. More...

	Adder (Adder const &)=delete
	Copy ctor deleted. More...

template<typename... Params>
	Adder (Truncation _trunc, Conf _conf, Params &&... _workspace_params)

std::pair< IterativeExit, StateType >	execute ()

Adder &	operator= (Adder &&)=default
	Move assignment op defaulted. More...

Adder &	operator= (Adder const &)=delete
	Copy assignment op deleted. More...

Protected Member Functions
std::string	gen_log (const IterativeExit _exitcode)

std::string	gen_log_header ()

Private Types
typedef Workspace::ScalarType	ScalarType

typedef Workspace::StateType	StateType

Private Member Functions
bool	abort (const IterativeExit &_exitcode)

void	check_converged (IterativeExit &_exitcode, const std::vector< SRDef > &_norms)

bool	converged (const IterativeExit &_exitcode)

Private Attributes
Conf	conf

Truncation	trunc

Detailed Description

template<typename Workspace>
class syten::VariationalAdd::Adder< Workspace >

Abstract class for variational TNS-addition.

Explicit implementation of tensor contractions and handling of states and coefficients is done in workspace. Workspace must implement:

init_workspace  : create left and right environment tensors, init parallelization, etc., returns IterativeExitReason (custom if no error occured)
gen_log_header  : set header for output
gen_log         : create output string
prepare_sweep   : prepare workspace for next sweep
sweep_complete  : returns true if a sweep is completed
expand          : expand current, active site tensor, takes truncation object as input argument
update          : update current site tensor(s)
step_next       : move orthogonality center to next site
finish_sweep    : finish workspace after sweep, return current norm
pop_result      : move result state

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

inc/alg/variational_add.h

Public Member Functions

Protected Member Functions

Private Types

Private Member Functions

Private Attributes

Detailed Description