title: Install AMD OpenCL CPU driver with an Nvidia graphic card
body: <p>I have seen this question many times but never found an answer for Windows.
  I recently ported my CUDA code to OpenCL.
  When testing with an ATI card, the Catalyst drivers contain a CPU OpenCL driver, hence I can run the OpenCL code on the CPU.
  When testing with an NVIDIA card, there is no driver for the CPU.</p>
  
  <p>Question is: how can I install (and deploy) a CPU driver when running with an Nvidia card?</p>
  
  <p>Thanks a lot</p>