title: Restore tf-Model for CPU saved under GPU
body: <p>I saved a model (tf version 0.12), trained on a machine with GPU. Now I need to restore it on a machine that only uses the CPU. I don't have access to the GPU-machine as I am on travel and would have 2 days to work on the scripts, but need the model in order to do so.</p>
  
  <p>Any ideas how to restore the GPU-model on the CPU-only machine?</p>
  
  <p>Error message on the CPU machine is:</p>
  
  <pre><code>Failed to get the number of CUDA devices: CUDA driver version is insufficient for CUDA runtime version
  Floating point exception (core dumped)
  </code></pre>
  
  <p>Looking for a hack. Can I rename the tensornames to pretend they come from a CPU?</p>