Specifies the device for ops created/executed in this context.
tf.device(
device_name
) -> ContextManager[None]
Used in the notebooks
Used in the guide |
Used in the tutorials |
|
|
This function specifies the device to be used for ops created/executed in a
particular context. Nested contexts will inherit and also create/execute
their ops on the specified device. If a specific device is not required,
consider not using this function so that a device can be automatically
assigned. In general the use of this function is optional. device_name
can
be fully specified, as in "/job:worker/task:1/device:cpu:0", or partially
specified, containing only a subset of the "/"-separated fields. Any fields
which are specified will override device annotations from outer scopes.
For example:
with tf.device('/job:foo'):
# ops created here have devices with /job:foo
with tf.device('/job:bar/task:0/device:gpu:2'):
# ops created here have the fully specified device above
with tf.device('/device:gpu:1'):
# ops created here have the device '/job:foo/device:gpu:1'
Args |
device_name
|
The device name to use in the context.
|
Returns |
A context manager that specifies the default device to use for newly
created ops.
|
Raises |
RuntimeError
|
If a function is passed in.
|