I amongst others have the same usage case as Florian. The fact that headless OpenCL was not available out of the gate was dare I say it very short sighted.
Why can this not be supported on Windows7? I don't believe at all that is a Windows 7 or hardware limitation for one second - especially as this is OpenCL we are talking about.
To make it crystal clear and blunt from a game developers engine writers perspective you should expect we want to target:
1) A discrete gaming GPU with OpenGL4.4+ that is either nVidia or AMD
2) An Intel CPU that has SSE4.2+, and integrated GPU that supports headless OpenCL1.2+ or OpenGL that we can use _at_the_same_time_ as the discrete GPU
3) 64bit Windows 7 - it's going to be a viable option for a long time yet
4) We don't want to use OpenCL on your CPU's as we are quite happy beating that with intrinsics
You only have to look at the Steam hardware survey to see why this makes sense going forward, and why the drivers should allow a seamless user end experiences from this. Otherwise you have effectively rendered a large part of common gamers hardware completely useless for no real reason.
Then we will move to support Vulkan as it becomes available in conjunction with this, with the preferred but not required OS being Windows 10. This is the most sensible path for developers that don't want to be tied into DirectX12 or OpenGL+CUDA right now.
Despite the DirectX12/Vulkan hype the future where consumers can still get value out of their hardware even after they add new upgrades has been here for a while but it's needless issues like this that have prevented it.
Please let us use the hardware you have produced and sold to many of our consumers.
