[Beowulf] Win64 Clusters!!!!!!!!!!!!

Peter St. John peter.st.john at gmail.com
Mon Apr 9 15:07:03 PDT 2007

You are right, Xenix was available for the 286 in 85 (I bought my 286 in
late 83 I think) but was available for the 8088 (the CPU on the IBM PC,
everyone says 8086 because of the sequence 80286, 80386...; I think the
80186 was a special purpose processor that turned out to be more apt for
pursuing a CPU line than the 8088 was) in 83.

At the time it seemed the conventional wisdom was (to develop on unix) to
invest in the bigger word and I was oblivious to people running Xenix on a
base PC, but apparently they did, at least it was available.

I remember, I think rather later, I looked up the command "uucp" in the
Xenix programming manual (idle curiousity how they would define the acronym)
and it said "Xenix to Xenix Copy", suggesting this would only communicate
with another Xenix machine (they had expunged the word "unix" from their
docs). I don't think I ever would have considered paying money for that. Ken
is one of the nicest guys I've met and that's just insulting.


On 4/9/07, Jim Lux <James.P.Lux at jpl.nasa.gov> wrote:
> At 11:39 AM 4/9/2007, Peter St. John wrote:
> >Well, I could run unix with all 1536K, but not MS/PCDOS 3.2. So call
> >it a software issue of failing to work around the hardware issue.
> >Obviously the hardware was not a show-stopper.
> >
> >But it was the 286 I did this on, not the earlier 8088, which I
> >don't think could reasonably have been expected to run unix;
> No problem running unix on a 8086.. (Don't forget Xenix on 8086 or
> 80286) Or, for that matter, on a 68000.  (maybe the 68010 with the
> mmu or the 020 with virtual memory?.. I seem to remember DRAM refresh
> by 64 NOPs on the timer tick)
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