frigidum 0.1.0

Simmulated Annealing

Simmulated Annealing package for Python

Installation

pip install frigidum

Example Usage

import frigidum

import random

def random_start():
    return 50 + random.random()

def random_small_step(x):
    return x + 0.1 * (random.random() - .5)

def random_big_step(x):
    return x + 10 * (random.random() - .5)

def obj(x):
    return x**2

local_opt = frigidum.sa(random_start=random_start, random_neighbours=[random_small_step, random_big_step], cost_function=obj, T_start=100, T_stop = 0.001, repeats=10**4, copy_state=frigidum.annealing.naked)

Movements

Copy'ing

To-Do:

• Statistics of acceptance of various movements/neighbors
• Multitreadding (N simultanous anneals)
• Drilling (after repeats, re-repeat with low temp)
• Re-Annealing
• Auto-set start Tempreature (Based on >90% movemenets)
• Auto-stop (Based on near 0 movemebts)