Max configuration of SGI Origin 2000/Onyx2 architecture

[Richard]

In article <47668201.5020603 at gmail.com>,
    Jules Richardson <jules.richardson99 at gmail.com>  writes:

> Interesting stuff. Weta Digital had a pretty impressive room full of O2k 
> hardware rendering the Lord of the Rings effects back around 2001. I'm not 
> sure if they're even still using SGI, but the rows of double-height O2k 
> cabinets looked pretty stunning back then - it'd be interesting to find out 
> what their exact config was.

Each double height rack holds two system modules.  Each system module
can hold 4 node boards.  Each node board has 2 CPUs (initially R10k @
195 MHz, but later R12k at 300 MHz).  Each node also has a chunk of
system memory, up to 4 GB.  The memory is shared between all the CPUs
through a cross-bar based interconnection fabric that is scalable with
the CPUs, i.e. there is no shared bus.  Its pretty interesting!
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