def get_one_child(self):
index1 = random.randint(0, self.pop_size - 1)
index2 = random.randint(0, self.pop_size - 1)
while index1 == index2:
index2 = random.randint(0, self.pop_size - 1)
chromo1 = self.pop[index1]
chromo2 = self.pop[index2]
et_global_solution1 = et.init_ET_global_solution(chromo1, self.problem)
et_global_solution2 = et.init_ET_global_solution(chromo2, self.problem)
et_penalty1 = sum(et_global_solution1.block_objs)
et_penalty2 = sum(et_global_solution2.block_objs)
if et_penalty1 > et_penalty2:
penalty2 = self.cal_Fitness_Value(chromo2, et_global_solution2)
if et_penalty1 > penalty2:
better_penalty = penalty2
new_chromo = chromo2[:]
else:
penalty1 = self.cal_Fitness_Value(chromo1, et_global_solution1)
if penalty1 > penalty2:
better_penalty = penalty2
new_chromo = chromo2[:]
else:
better_penalty = penalty1
new_chromo = chromo1[:]
else:
penalty1 = self.cal_Fitness_Value(chromo1, et_global_solution1)
if et_penalty2 > penalty1:
better_penalty = penalty1
new_chromo = chromo1[:]
else:
penalty2 = self.cal_Fitness_Value(chromo2, et_global_solution2)
if penalty1 > penalty2:
better_penalty = penalty2
new_chromo = chromo2[:]
else:
better_penalty = penalty1
new_chromo = chromo1[:]
if (better_penalty <= self.memo_opt[self.iter]):
self.memo_opt[self.iter] = better_penalty
self.opt_chromo = new_chromo
# cross
r = random.random()
if r < self.cross_rate:
temp_chromo = self.pop[random.randint(0, self.pop_size - 1)]
new_chromo = self.cross(new_chromo, temp_chromo)
# print("iter", self.iter)
# print("mutation count", self.mutation_count)
# print("cross_count", self.cross_count)
# print([a for a in new_chromo])
# mutation
r = random.random()
if r < self.mut_rate:
new_chromo = self.mutation(new_chromo)
return new_chromo
def generate_Initial(self):
initial = []
chromo = range(self.n)
# number of chromosomes by due dates in the initial population
nCBD = 3
due = self.problem.due_dates
due, chromo = zip(*sorted(zip(due, chromo)))
chromo = list(chromo)
CBD = chromo
et_global_solution = et.init_ET_global_solution(CBD, self.problem)
objCBD = self.cal_Fitness_Value(CBD, et_global_solution)
for i in range(nCBD):
CBD = list(CBD)
initial.append(CBD)
# number of chromosomes by expected start times in the initial population
nCES = 3
chromo = list(range(self.n))
due = self.problem.due_dates
process = self.problem.processing_times
expected_starts = []
for j in range(len(due)):
expected_starts.append(due[j] - process[j])
expected_starts, chromo = zip(*sorted(zip(expected_starts, chromo)))
chromo = list(chromo)
CES = chromo
et_global_solution = et.init_ET_global_solution(CES, self.problem)
objCES = self.cal_Fitness_Value(CES, et_global_solution)
for i in range(nCES):
CES = list(CES)
initial.append(CES)
if objCBD < objCES:
self.opt_chromo = CBD
self.memo_opt.append(objCBD)
else:
self.opt_chromo = CES
self.memo_opt.append(objCES)
for i in range(self.pop_size - nCBD - nCES):
random.shuffle(chromo)
tempChromo = chromo.copy()
initial.append(tempChromo)
# print("**************** initial pop ****************")
# for j in range(self.pop_size):
# print(initial[j])
# print("**************** initial pop ****************")
return initial
def cal_Fitness_Value(self, chromo):
if self.memo_FV.get(tuple(chromo)):
return self.memo_FV[(tuple(chromo))].eti_penalty
p = copy.deepcopy(self.problem)
p.earliness_penalties[
chromo[0]] = p.earliness_penalties[chromo[0]] + p.a
p.tardiness_penalties[
chromo[0]] = p.tardiness_penalties[chromo[0]] - p.a
p.earliness_penalties[chromo[
self.n - 1]] = p.earliness_penalties[chromo[self.n - 1]] - p.a
p.tardiness_penalties[chromo[
self.n - 1]] = p.tardiness_penalties[chromo[self.n - 1]] + p.a
# memos
memo_BT = bt.init_BT_memo(chromo, p.due_dates, p.processing_times)
memo_ET = et.init_ET_memo(chromo, p.due_dates, p.processing_times)
et_global_solution = et.init_ET_global_solution(chromo, p)
memo_ETI = dp.init_ETI_memo(chromo)
block_lasts, end_times, eti_penalty, _ = dp.opt_ETI(
memo_BT, memo_ET, memo_ETI, et_global_solution, utils.BIG_NUMBER,
chromo, self.n - 1, p)
# if self.iter == 0:
# print(eti_penalty)
real_obj, b_ratio = self.cal_Real_Objective(chromo, block_lasts,
end_times, self.problem)
self.memo_FV[tuple(chromo)] = utils.Solution(block_lasts, end_times,
eti_penalty, 0)
return eti_penalty
def run9(p, jobs):
sys.setrecursionlimit(1200)
start = time.process_time()
memo_BT = bt.init_BT_memo(jobs, p.due_dates, p.processing_times)
memo_ET = et.init_ET_memo(jobs, p.due_dates, p.processing_times)
et_global_solution = et.init_ET_global_solution(jobs, p)
memo_ETI = dpb.init_ETI_memo_bounded(jobs)
block_lasts, _, eti_penalty1, cplex_time = dpb.opt_ETI_Bounded(
memo_BT, memo_ET, memo_ETI, et_global_solution, utils.BIG_NUMBER,
p.n - 1, jobs, p.n - 1, p)
end = time.process_time()
run_time1 = end - start
num_idle = len(block_lasts) - 1
f = open('My_DP_Bounded_0725.txt', 'a')
f.write(
str(p.n) + "\t" + str(p.b) + "\t" + str(p.rho) + "\t" +
str(run_time1) + "\t" + str(eti_penalty1) + "\t" + str(num_idle) +
"\n")
f.close()
