I think the nan issue you are referring to was caused by some weird stuff with Bazel.<p>I put together an AMI in virginia: ami-cf5028a5 and if you have a masochistic streak, here are the steps to do it yourself: <a href="https:&#x2F;&#x2F;gist.github.com&#x2F;erikbern&#x2F;78ba519b97b440e10640" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;erikbern&#x2F;78ba519b97b440e10640</a><p>The main issue I&#x27;m still seeing is that g2.8xlarge with my AMI doesn&#x27;t run 4x faster than g2.2xlarge even if correctly detects the 4 GPU&#x27;s. Haven&#x27;t had time to identify the issue though.