To see a simple TensorFlow cluster in action, execute the following:
来看一个简单的 tensorflow 集群，运行下面的代码：
Start a TensorFlow server as a single-process “cluster”.
$ python
import tensorflow as tf
c = tf.constant(“Hello, distributed TensorFlow!”)
server = tf.train.Server.create_local_server()
sess = tf.Session(server.target) # Create a session on the server.
sess.run(c)
‘Hello, distributed TensorFlow!’
https://www.tensorflow.org/deploy/distributed
