def run(all_demands: [Demand], topology: Topology) -> float:
Logger.create_summary_file()
demands = all_demands
print("Total demands: {}".format(len(demands)))
iteration = 0
start = time.time()
while iteration <= TOTAL_DURATION and PROCEED:
demands_starting_now = list(
filter(lambda demand: demand.started_at == iteration, demands))
demands_finishing_now = list(
filter(
lambda demand: demand.started_at + demand.duration ==
iteration, demands))
prepared_demands = set(demands_starting_now + demands_finishing_now)
for demand in prepared_demands:
paths_candidates = topology.get_paths(demand.source.id,
demand.destination.id)
number_of_paths = len(paths_candidates)
chosen_path = 0
if number_of_paths > 0:
while chosen_path < number_of_paths:
is_success = demand.check_and_allocate(
iteration, paths_candidates[chosen_path])
if is_success:
break
else:
chosen_path = chosen_path + 1
else:
demand.mark_as_failed()
current_duration = time.time() - start
Logger.progress_bar(iteration, TOTAL_DURATION,
get_time(current_duration))
iteration = iteration + 1
duration = time.time() - start
print("\n Finished. Total time duration: {}".format(get_time(duration)))
return duration
