there is also pocl (http://portablecl.org/ http://portablecl.org/), which aims to one day target GPUs (although currently it does not). the issue with free Ope

there is also pocl (http://portablecl.org/ http://portablecl.org/), which aims to one day target GPUs (although currently it does not). the issue with free OpenCL implementations on the GPU is that the runtime will be closely coupled with the device driver, so short of open source drivers, there most likely wont be an OpenCL runtime that uses proprietary drivers. that said, i believe both open source nvidia and radeon drivers support some level of OpenCL, although it's been a while since i've checked them.. nvidia will do what nvidia will do, they obviously have quite a lot of upstream swimming to do before they realise that CUDA is not the best approach to take.