I looked at this for a client close to 20 years ago. The problem is that you need to get software support for it. Arguably easier these days with open source but still doesn't magically happen.

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jmalicki 2 days ago | parent [-]

The nice thing is that for GPUs you're rarely writing directly against the metal but instead pseudocode lowered by the driver; the driver could know to just lower it this way. On an NVidia GPU they control the whole stack and don't need to get a further ecosystem going there. Possibly the same for Apple.

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ghaff 2 days ago | parent [-]

Apple is such a vertical stack, I'm not sure how to generalize from that. Certainly the same was true on IBM mainframes. And, when I wrote open source, I could probably have written abstraction more broadly.

	▲	jmalicki 2 days ago \| parent [-]
		I am thinking the first place this appears is on GPUs and maybe Apple with unified memory, it is not going to be on PCs.