コード例 #1
0
def startit():
    global avg
    start = timer()
    
    old = start
    popn = init(POPULATION_SIZE, PERMUTATION_LENGTH)       
    i=0
    globmin = popn[0]
    while i<MAXITERATIONS and globmin.fitness>=118283:
        i+=1
        natselect(popn, TOURNAMENT_SIZE)
        if i%1000==0:
            globmin = getbest()
            current = timer()
            print '\n-----------------------------'
            print 'elapsed time: ' + str(current-old) + '\niteration: ' + str(i) + '\nfitness: ' + str(globmin.fitness) + '\n'
            print globmin. route
            old = current
    print '\nCOMPLETE!\niteration: ' + str(i)
    print globmin. route
    end = timer()
    avg.append(end-start)
    print '\ntotal time: ' + str(end-start)
    del popn[:]
    return (end-start, i)
コード例 #2
0
from selection import natselect, init, getglobbest
from functions import getfitnesscount
import sys
from timeit import default_timer as timer

XRANG = (-60, 40)
YRANG = (-30, 70)
POPULATION_SIZE = 30
INDIVIDUAL_LENGTH = 30
MAX_ITERATIONS = 10000

start = timer()
popn = init(POPULATION_SIZE, INDIVIDUAL_LENGTH, XRANG, YRANG)

for i in range(MAX_ITERATIONS):
    popn = natselect(popn, i + 1)
    if i % 200 == 0:
        getglobbest()
    if getfitnesscount() == 200000:
        getglobbest()
        end = timer()
        print('\ntotal time: ' + str(end - start) + ' seconds')
        sys.exit('\nPROGRAM STOPPED!\nmaximum fitness calculations')