Well ROCm is more or less designed to be portable between both; that's not strictly true but it's fairly similar to CUDA so I don't know how much of that boiler

Well ROCm is more or less designed to be portable between both; that's not strictly true but it's fairly similar to CUDA so I don't know how much of that boilerplate is reduced by the fact that it's AMD specific. Your point is fair though; Vulkan kind of runs on almost-literally everything made in the last nine years or so, so it can assume basically zero about any kind of underlying OS stuff. Still, Vulkan has convinced me that I have no desire to work that low-level of GPU programming, as I had zero fun playing with it. I guess I like having one layer up of abstraction; I'm happy enough to write CUDA, and I'm happy enough to write anything higher level than that.