I started training about 24 hours ago with a single i7 860 (2.8ghz) and it&#x27;s still running, but I&#x27;m watching the loss going down so I think it might wrap up within a day or two.<p>The machine I&#x27;m using has an Nvidia GTX 970, but I failed to enable CUDA in the TensorFlow installation so it&#x27;s not using it.  When I noticed that I decided just to let it run and then, when it finishes, train it again with the GPU and compare.