When I was learning this stuff, CUDA had better documentation (perhaps this has changed recently... I haven't done anything with GPUs in awhile), so it was a bi

When I was learning this stuff, CUDA had better documentation (perhaps this has changed recently... I haven't done anything with GPUs in awhile), so it was a bit easier to learn. But my guess is that the instructor for this course happens to be more familiar with CUDA so they chose to teach that. Harvard has a similar course that used to be taught with CUDA and is now taught with OpenCL.