tf.test.gpu_device_name

Returns the name of a GPU device if available or a empty string.

tf.test.gpu_device_name()

This method should only be used in tests written with tf.test.TestCase.

class MyTest(tf.test.TestCase):

  def test_add_on_gpu(self):
    if not tf.test.is_built_with_gpu_support():
      self.skipTest("test is only applicable on GPU")

    with tf.device(tf.test.gpu_device_name()):
      self.assertEqual(tf.math.add(1.0, 2.0), 3.0)