[TUHS] Distributed systems, was: On the origins of Linux - "an academic question"

Ralph Corderoy ralph at inputplus.co.uk
Sun Feb 9 03:18:37 AEST 2020


Rob Pike wrote:
> I am convinced that large-scale modern compute centers would be run
> very differently, with fewer or at least lesser problems, if they were
> treated as a single system rather than as a bunch of single-user
> computers ssh'ed together.

This reminds me of Western Digital's recent OmniXtend.  It takes a
programmable Ethernet switch and changes the protocol: Ethernet becomes
OmniXtend.  It's a cache-coherency protocol the allows CPUs, custom
ASICs, FPGAs, GPUS, ML accelerators, ... to each hang off an 802.3 PHY
and share one memory pool.

It might be a step towards a room of racks being marshalled as a single

Cheers, Ralph.

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