tf.distribute.OneDeviceStrategy

A distribution strategy for running on a single device.

Inherits From: Strategy

Used in the notebooks

Used in the tutorials

Using this strategy will place any variables created in its scope on the specified device. Input distributed through this strategy will be prefetched to the specified device. Moreover, any functions called via strategy.run will also be placed on the specified device as well.

Typical usage of this strategy could be testing your code with the tf.distribute.Strategy API before switching to other strategies which actually distribute to multiple devices/machines.

For example:

strategy = tf.distribute.OneDeviceStrategy(device="/gpu:0")

with strategy.scope():
  v = tf.Variable(1.0)
  print(v.device)  # /job:localhost/replica:0/task:0/device:GPU:0

def step_fn(x):
  return x * 2

res