运行更多任务的芹菜任务

@task
def compute(users=None):
    if users is None:
        users = User.objects.all()

    tasks = []
    for user in users:
        tasks.append(compute_for_user.subtask((user.id,)))

    job = TaskSet(tasks)
    job.apply_async() # raises a IOError: Socket closed

@task
def compute_for_user(user_id):
    #do some stuff

apply_async

g = group(compute_for_user.s(user.id) for user in users)
g.apply_async()