I’d like to share two images.
The following image is being shared for quite some time, to show the technical capabilities of CUDA.
I replaced “CUDA source” by “OpenCL source” and worked from there. Result:
I know it is not optimised for a certain architecture, but neither is the CUDA-source for the two extra targets.
Upcoming soon is an article, where the real stuff is currently happening: the higher-level languages being built on top of OpenCL.