tf.test.is_built_with_cuda

Returns whether TensorFlow was built with CUDA (GPU) support.

tf.test.is_built_with_cuda()

This method should only be used in tests written with tf.test.TestCase. A typical usage is to skip tests that should only run with CUDA (GPU).

class MyTest(tf.test.TestCase):

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

    with tf.device("GPU:0"):
      self.assertEqual(tf.math.add(1.0, 2.0), 3.0)

TensorFlow official binary is built with CUDA.