def start_manager(length, sub_len):
context = zmq.Context()
print("Doing a distributed sum of an array %d long" % length)
to_sum = range(length)
task_send_sock = context.socket(zmq.PUSH)
task_send_sock.bind(TASK_ADDR)
sent, idx = 0, 0
num_pkts = int(ceil(float(sent) / sub_len))
while sent < num_pkts:
start, end = idx, idx+sub_len
print("Sending sub-array from %d to %d" % (start, end))
task_msg = Task(to_sum[start:end])
task_send_sock.send(task_msg.dump())
sent += 1
idx += sub_len
print("Sent all the messages")
