Configuration for subspace expansion. More...

#include <gse_config.h>

Collaboration diagram for syten::TDVP::GSEConf:

Public Member Functions
template<class Archive >
void	serialize (Archive &ar, unsigned int const in_version)
	Serialization. More...

Public Attributes
bool	adaptive = true
	do not perform expansion at every step More...

SRDef	bond_dim_threshold = NAN
	bond dimension threshold below which to use exact operator application - initialized in TDVP ctor More...

Truncation	default_trunc_expansion = Truncation(1e-6)
	maxStates are defaulted to TDVP maxStates in TDVP ctor (if no trunc is set) More...

Truncation	default_trunc_op = Truncation(1e-8)
	Define default values wherever they include numeric values. More...

bool	initial_expansion = true
	do full expansion when initializing TDVP worker in DuringTdvp mode More...

Index	krylov_order = 3
	build (krylov_order-1) Krylov vectors for subspace expansion More...

GSEMode	mode = GSEMode::DuringTDVP
	do full expansion before every TDVP sweep or expand tensor-by-tensor during backsweep More...

Index	saturation_scaling_factor = 2
	scales the singular value threshold in the determination of which site qualifies as saturated - higher for stricter More...

std::vector< SRDef >	sing_val_thresholds = {1e-8}
	if adaptive, do not expand if the smallest singular value is below this threshold More...

SDef	tau = NAN
	parameter in operator (1-itauH) for norm conservation - initialized in TDVO ctor More...

Truncation	trunc_expansion = Truncation(0, 0)
	truncation on SVD creating expanded tensor <=> eps_m. More...

Truncation	trunc_op = Truncation(0, 0)
	truncation on operator application (1-itauH) <=> eps_k. More...

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

Detailed Description

Configuration for subspace expansion.

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

Public Member Functions