title: ZeroMQ request and multiple async replies to this request
body: <p>I have something like remote machine that performs heavy computations and a client machine that sends tasks to it. Output results are very big from megabytes to gigabytes and come in chunks during long time period. So it looks like this:
  client sends task and then needs to receive this chunks since they are already useful (one request - multiple responses). How to realize this pattern in ZeroMQ. </p>