Edit:
Of interest; someone on reddit did an implementation of conway's game of life in opencl (via pyopencl) as a learning exercise. https://github.com/InfiniteSearchSpace/PyCl-Convergence/tree/master/ConwayCL-Final
If anyone wants to get into CL this is a great jumping off point as the CL code is ~50 lines and quite easy to read.
OpenCL and CUDA are aimed at computing-specific applications, not gaming - doesn't really make sense for gaming usage as they don't support a lot of the stuff gaming NEEDS.