Technically it is entirely viable. Vulkan/OpenGL compute shaders offer more or less a 1:1 equivalent to every CUDA features. It is more of an usability issue. C

Technically it is entirely viable. Vulkan/OpenGL compute shaders offer more or less a 1:1 equivalent to every CUDA features. It is more of an usability issue. CUDA has been design to be a GPGPU API from the get go and, therefor, tend to be "easier" to use. OpenCL could have been a better replacement, but the API was really not on par with CUDA when it comes to usability. SYCL looks like finally a good answer by the Khronos group but it is so late. You already have a lot of people who know how to use CUDA, a lot of learning resources, etc ...