Tensorflow: how to save/restore a model?

Question

After you train a model in Tensorflow:

1. How do you save the trained model?
2. How do you later restore this saved model?

Answer 1

If you use tf.train.MonitoredTrainingSession as the default session, you don't need to add extra code to do save/restore things. Just pass a checkpoint dir name to MonitoredTrainingSession's constructor, it will use session hooks to handle these.