title: opencl Compilation errors
body: <p>I am new to OpenCL, I installed the intel sdk for opencl according to the answer on this thread:
  <a href="https://stackoverflow.com/questions/16977216/opencl-compile-on-linux">OpenCL compile on linux</a>
  But my opencl code won't compile. I am having an error message "CL/cl.hpp:No such file or directory"</p>