From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Wed,  1 Dec 2010 11:32:36 -0800
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From: Skip Tavakkolian <skip.tavakkolian@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] latest minicluster: ARM fun
Topicbox-Message-UUID: 87382186-ead6-11e9-9d60-3106f5b1d025

Very cool!  more lights than the WOPR and slightly less than the
Connection Machine :)

The Stagecoach board seems to be available on gumstix site. Anyone order it yet?

-Skip

On Tue, Nov 30, 2010 at 9:56 AM, ron minnich <rminnich@gmail.com> wrote:
> Here is our latest minicluster design.
>
> We used the gumstix stagecoach.
>
> It's nice, 196 Ovaros in a box. We had a number of failed attempts on
> an enclosure design:
> http://picasaweb.google.com/rminnich/Strongbox?authkey=Gv1sRgCI6PwZXM57iZ8gE#
>
> That was my first design, it was really quite compact and fun, and it
> was a huge pain to assemble. It hit the basic high points however: 7
> nodes per stagecoach, 7 stagecoaches per shelf, a switch per shelf
> that reduced the outgoing enet cables to one. Power was a huge issue;
> 5V 80A per shelf, which was not fun. 10 GA wires never are.
>
> I know at least some people on this list know Mitch Williams. He came
> up with this:
> http://picasaweb.google.com/rminnich/StrongboxAtSC10?authkey=Gv1sRgCJbWpcfci73HxwE#
> It's quite elegant: self-contained shelves, with power supply,
> Rigrunner for fuses,
> continues the use of an 8-port switch per shelf, so each shelf has one
> 120V power cable and one enet cable coming out.
>
> Plan 9 is in the works. This is a nice test and development platform
> for software. We're going to make the design available in a way that
> people can easily build their own.
>
> ron
>
>