[rescue] SGI files Ch11 again, bought by Rackable for $25M

[jodys at helluin.org]

On Wed, Apr 01, 2009 at 02:25:06PM -0400, Joshua Boyd wrote:
> > When I came on, I was mostly handling software and OS stuff so I didn't have
> > my hands inside the machines too often.  I do remember seeing the thick
> > cables though and having to work around them.  One "router rack" with 4
> > O2000 racks on each side with the heavy HIPPI cable interconnects.  So 9
> > racks total per row, times 48 rows deep.   LOTS of cable.
> 
> The Blue Mountain press release states 48 128 processor systems.
> Pictures clearly show that the center rack is the NUMAlink meta router,
> needed to expand a O2k past 32 processors up to 128 processors.  
> 
> What the press release doesn't specify is how the 48 systems were
> connected together, which I'm going to guess was either HIPPI-800 or
> HIPPI-6400.  The inter-machine speeds that the press release mention
> (650 gigabit) would require one HIPPI-6400 card per cage (2 cages per
> rack) to be in that ball park.

The flyer I found says [0]

Each of the 48 machines has 12 HIPPI ports, connected via a 3-dimensional  
toroidal interconnect using 36 HiPPI-800 16 port switches.

[0] http://www.futuretech.blinkenlights.nl/origin/ASCI_fly.pdf

Jody