> > Date: Thu, 26 Jul 2001 07:02:22 -0700 (PDT)
> > From: Ethan Dicks <ethan_dicks_at_yahoo.com>
> >
> > > The 11/782 was dual cpu 11/780's with shared memory bus run
> > > master-slave for compute bound tasks with the i/o run off of one
> > > cpu.
> >
> > Right. Developed by George Goble (of the LOX-on-the-BBQ fame), et. al, at
> > Purdue, IIRC.
>
> The 782 was the DEC solution, using a multiported memory (MA780).
> Each CPU had it's own SBI, with private UBA's and MBA's (UNIBUS and
> MASSBUSS adapters);
Actually, DEC didn't (back then) support any massbusses on the attached
cpu... They dual-ported the memory in between the sbi's.
The attached cpu usually ran no I/O devices and just worked on compute
bound tasks... this was in the vms 3.2 or so range.
Perhaps later they let the attached box have private disks.
> Disclaimer;
> I worked at DEC in the 80's, but on 36-bit products.
> (and briefly on the 64-bit RISC machine, codenamed "SAFE",
> which, after Cutler grabbed the project, was renamed PRISM).
Hmm... how close was it to Alpha AXP -- almost exactly prism?
Bill
---
Bill Gates is a Persian cat and a monocle away from being a
villain in a James Bond movie -- Dennis Miller
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Received on Thu Jul 26 2001 - 12:44:00 BST