occ::mults::MSTMINSettings Struct Reference

Settings for DMACRYS-style MSTMIN quasi-Newton optimizer. More...

#include <mstmin.h>

Public Attributes
double	max_displacement = 0.05
	Maximum component displacement per cycle.
int	max_updates = 1000
	Rebuild inverse Hessian after this many updates.
double	usalp = 0.0
	DMACRYS update aggressiveness factor.
double	step_tol = 1e-5
	Converge when max |step component| < tol.
double	gradient_tol = 1e-5
	Converge when ||g|| < tol.
double	directional_tol_factor = 1e-4
	gd tolerance = step_tol * factor
double	energy_tol = 1e-10
	Converge when |dE| < tol.
bool	enforce_energy_decrease = false
	Reject uphill trial steps during line search.
double	energy_increase_tol_abs = 1e-10
	Allow tiny absolute uphill noise in line search.
double	energy_increase_tol_rel = 1e-12
	Allow tiny relative uphill noise in line search.
int	max_line_search = 80
	Safety cap for line-search iterations.
int	max_line_search_restarts = 3
	Auto-restarts after line-search failure (Hessian reset)
int	max_function_evaluations = 4000
	Global cap on objective evaluations (prevents long stalls)
int	max_negative_curvature = 20
	Maximum persistent negative-curvature expansions.
bool	steepest_descent_on_positive_gd = false
	DMACRYS STDC option.

Detailed Description

Settings for DMACRYS-style MSTMIN quasi-Newton optimizer.

Member Data Documentation

directional_tol_factor

double occ::mults::MSTMINSettings::directional_tol_factor = 1e-4

gd tolerance = step_tol * factor

energy_increase_tol_abs

double occ::mults::MSTMINSettings::energy_increase_tol_abs = 1e-10

Allow tiny absolute uphill noise in line search.

energy_increase_tol_rel

double occ::mults::MSTMINSettings::energy_increase_tol_rel = 1e-12

Allow tiny relative uphill noise in line search.

energy_tol

double occ::mults::MSTMINSettings::energy_tol = 1e-10

Converge when |dE| < tol.

enforce_energy_decrease

bool occ::mults::MSTMINSettings::enforce_energy_decrease = false

Reject uphill trial steps during line search.

gradient_tol

double occ::mults::MSTMINSettings::gradient_tol = 1e-5

Converge when ||g|| < tol.

max_displacement

double occ::mults::MSTMINSettings::max_displacement = 0.05

Maximum component displacement per cycle.

max_function_evaluations

int occ::mults::MSTMINSettings::max_function_evaluations = 4000

Global cap on objective evaluations (prevents long stalls)

max_line_search

int occ::mults::MSTMINSettings::max_line_search = 80

Safety cap for line-search iterations.

max_line_search_restarts

int occ::mults::MSTMINSettings::max_line_search_restarts = 3

Auto-restarts after line-search failure (Hessian reset)

max_negative_curvature

int occ::mults::MSTMINSettings::max_negative_curvature = 20

Maximum persistent negative-curvature expansions.

max_updates

int occ::mults::MSTMINSettings::max_updates = 1000

Rebuild inverse Hessian after this many updates.

steepest_descent_on_positive_gd

bool occ::mults::MSTMINSettings::steepest_descent_on_positive_gd = false

DMACRYS STDC option.

step_tol

double occ::mults::MSTMINSettings::step_tol = 1e-5

Converge when max |step component| < tol.

usalp

double occ::mults::MSTMINSettings::usalp = 0.0

DMACRYS update aggressiveness factor.

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

• /home/runner/work/occ/occ/include/occ/mults/mstmin.h