title: Parallel reduction of an array on CPU
body: <p>Is there a way to do parallel reduction of an array on CPU in C/C++?. I recently learnt that it's not possible using <a href="https://stackoverflow.com/questions/3775147/is-it-possible-to-do-a-reduction-on-an-array-with-openmp">openmp</a>. Any other alternatives?</p>