|TensorFlow 1 version||View source on GitHub|
Return a list of physical devices visible to the runtime.
Compat aliases for migration
See Migration guide for more details.
tf.config.experimental.list_physical_devices( device_type=None )
Physical devices are hardware devices locally present on the current machine.
By default all discovered CPU and GPU devices are considered visible. The
list_physical_devices allows querying the hardware prior to runtime
The following example ensures the machine can see at least 1 GPU.
physical_devices = tf.config.experimental.list_physical_devices('GPU') assert len(physical_devices) > 0, "No GPUs found."
||(optional) Device type to filter by such as "CPU" or "GPU"|
|List of PhysicalDevice objects|