Subject: Re: VAX now runs multicpu!
To: None <tls@rek.tjls.com>
From: Tinker and Gypsy <shsrms@bellatlantic.net>
List: port-vax
Date: 06/01/2001 21:20:57
Thor Lancelot Simon wrote:
>
> On Wed, May 30, 2001 at 06:15:54PM +0000, Gunther Schadow wrote:
> > Anders Magnusson wrote:
> > >
> > > I just got a VAX 8350 with 3 CPUs to use all three processors.
> > > I have tested it a little, and it seems to work quite fine :-)
> > > It shouldn't be too hard to make it running on some funnier
> > > machines, like the 8800 and the 6000 series.
> > >
> > > The VAX 8350 system is probably the slowest multiprocessor system
> > > that NetBSD will ever support; each CPU does about 2VUPS (~2MIPS) :-)
> >
> > Cool! Thanks, even more to look forward to when I finally have a storage
> > setup :-) Slowest multi-CPU system? What about the 11/785? It should be
> > 4 x 1 VUP, right? Has anyone ever seen one?
>
> I think you have the model numbers mixed up. A 785 is a 780 with an
> upgraded processor board. A 782 is two 780s connected by a shared-memory
> box. Though I don't think they were ever officially cataloged, the
> additional ports on the shared-memory box could be used to build "783"
> and "784" configurations and reportedly at least some of these were in
> fact shipped from the factory as that configuration and had actual DEC
> "VAX 11/784" badges on them (there was one such at Ontario Hydro, IIRC).
>
> Two 785s hooked up to the SHM box made a 787. I don't know if there were
> 788s or 789s out there.
>
> Architecturally this is a rather strange beast; not really like the SMP
> machines NetBSD currently runs on. Support might be quite a bit of work.
Unless we cheat a little, and cluster it....
bob
>
> --
> Thor Lancelot Simon tls@rek.tjls.com
> And now he couldn't remember when this passion had flown, leaving him so
> foolish and bewildered and astray: can any man?
> William Styron