title: How to resume training from *.meta in tensorflow?
body: <p>In the latest version of tensorflow, when I save the model I find two files are produced: model_xxx and model_xxx.meta.</p>
  
  <p>Does model_xxx.meta specify the network? Can I resume training using model_xxx and model_xxx.meta without specify the network in the code? What about training queue structure, are they stored in model_xxx.meta?</p>