title: Renderscript and the GPU
body: <p>I <em>know</em> that Renderscript's design is to obscure the fact about what processor I'm running on, but is there any way to write the code such that on GPU-compute-capable devices (at the moment, Nexus 10), it <em>will</em> run on the GPU? Is there any way to tell that a script's function is running on the GPU?</p>
  
  <p>www.leapconf.com/downloads/LihuaZhang-MulticoreWare.pdf suggests that if I don't use globals, I don't use recursion, and don't call rsDebug anywhere in a kernel, it will be run on the GPU; is that correct? </p>
  
  <p>I'd love to see a short script that people have somehow verified will run on the gpu as a purely compute-based task (eg., no graphics work).</p>