Initializes a distributed TPU system for use with TensorFlow.
tf.tpu.initialize_system( embedding_config=None, job=None )
embedding_config: If not None, a
TPUEmbeddingConfigurationproto describing the desired configuration of the hardware embedding lookup tables. If embedding_config is None, no hardware embeddings can be used.
job: The job (the XXX in TensorFlow device specification /job:XXX) that contains the TPU devices that will be initialized. If job=None it is assumed there is only one job in the TensorFlow flock, and an error will be returned if this assumption does not hold.
TopologyProto that describes the TPU system. Note:
the topology must be evaluated using
Session.run before it can be used.