message: Log CollectiveCommunication in local CollectiveAllReduceStrategy case.
diff: @@ -170,8 +170,8 @@ class CollectiveAllReduceExtended(mirrored_strategy.MirroredExtended):
  self._rpc_layer = cluster_resolver.rpc_layer
  self._warn_nccl_no_gpu()
  - logging.info("CollectiveAllReduceStrategy with local_devices = %r",
  - local_devices)
  + logging.info("Single-worker CollectiveAllReduceStrategy with local_devices "
  + "= %r, communication = %s", local_devices, self._communication)
  def _initialize_multi_worker(self, cluster_resolver):
  """Initializes the object for multi-worker training."""
  