[qubex]

I don’t really understand the reference (by concept, at least) to LPAR (Logical PARtitonining) and hypervisor capability. This would be a consumer machine and there’s not really much utility (that I can think of) in having many fragmented OS instances running on each core of a heavily parallelised CPU.

However... you give me the opportunity to bring up my favourite OS of the late 1990s, BeOS which was both “pervasively multithreaded” to take advantage of what they perceived as being an incipient multiprocessor revolution (“One processor per person is not enough!”), and which was also somewhat conceived as a “hobbyist system” along the lines of an Amiga successor. (And no, much as it is was pretty and performant and very pleasant and a great personal favorite, BeOS was not multiuser so had very poor innate notions of permissions and security).

TL;DR BeOS (a spiritual Amiga successor) was an early comer to the world of consumer multiprocessing, but I don’t understand why you’d want a vastly multicore machine that you can logically partition.