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Keyword category:

Annealing

STEPCV

STEPCV — Define a lower bound for the step size (% of initial step).

Usage

STEPCV=n.n

Description

A minimum step size for simulated annealing is specified as a percent (given by STEPCV=n.n) of the maximum step size (given by STEP). The step factor "n.n" (which is (1/NMAX)1/2 by default) yields a minimum step size of n.n × STEP. The current step size is updated internally and usually decreases with the temperature. The simulated annealing procedure halts when either the current step size drops below this minimum step size or the random walk is trapped in some minimum on the previous 2 values of the temperature.

Abbreviation:

none

Requires:

ANNEAL, GANNEAL, TSANNEAL, or MANNEAL

Required by:

none

Default value:

(1/NMAX)1/2

See also:

STEP, NMAX
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