On Fri, Apr 02, 2021 at 02:39:42PM +0200, Balder Oddson wrote:
> Made of three processing rings, with 3 control wires, direct opposite
> ring segment, and its two neighbours, this is your double data rate, or
> dead beef and the global clock. The local clock is the segment and its
> immediate neighbours. Stack three of them, and add a dimension in the
> topology, and as many datapaths as possible between the faster parts of
> the system, with digital sync between the local clock and speed of light
> in vacume. Which is an architecture where scatter-gather is extremely
> useful, as that works on the global clock. So a total 18 die's and a
> very difficult juggling act, where cable length's are legendary for the
> premium original Cray's. If you think you have a problem with your local
> segment, just feed beef.
>
> Not many explanations of this architecture that's around, but culture
> references like cult of the dead cow as a pun and wishes on those that
> occupied the whole system. Anyone that's been around a real one to know?
> If you want to know what's inside a cray, it's basically evil inside if
> you thought that would reveal something.
>
Yes and no, as this likely works because:
With direct wires and shortest distance and speed of light in the
material as the clock. Simplest setup is one ring with 6 sockets, what's
on each segment, which is a beef, or a processor as usual. Guarantees on
digital sync that it knows.
#1 being wrriten to, or writing to another.
#2 that you are beef, and may or may not being doing a shared task.
#3 idle or beef, exception level, local/global root.
This being important, as the digital clock should be the same as the
wired clock, where the die clock can skew just fine as long as being in
the state of feedbeef or deadbeef is very tight. This being the general
purpose brute force method you have, of scattering instructions in
memory to your exact opposite node in the circle, with or without your
neighbours. This allows wriggleroom where this may work, and where
spending extra on cooling and perhaps carbon nano tubes for the wries to
make this cache coherent beast fly.
These pop-culture references like feedbeef, deadcow, deadbeef and
feedface (terminal), likewise the temptation of calling it a
scalar-vector machine data-core as its not an inefficient or rubbish
architecture, just complicated about this 6 segment configuration.
Due to the ability to skew, its practically going faster than the speed
of light with the premiss that it is cache coherent with control wires
to direct opposite node and its neighbours, not your own, with just one
datapath across with wires for each segment. You SIMD and vector scatter
and gather as if it werent for Cray aspirations in most things ever
since.
And it should be open for relying on some ideal properties and quirks.
How that system would behave and make noise I don't know, but you could
likely guess when it was writing the results, or gathering it in memory.
Doubt this would be interesting to bitcoin, but you should be able to
scrub any size link you can fit on a segment.
Many old and cool antique architectures, Cray is the premiere
architecture, he promised 10x performance and did so, not likely to get
one on ebay to boot BSD on, not sure if you can get the OS or blueprints
either.
Locked
