[rescue] SGI Systems available
Gerhard Lenerz
mail at g-lenerz.de
Wed Apr 9 14:34:33 CDT 2003
Hello Kurt and all other rescuers,
Wednesday, April 9, 2003, 7:28:17 PM, you wrote:
> I've lost the URL, but someone actually did testing and the XS equipped R5k
> stomped an XZ R5k in all manner of 3D and 2D applications. You'd think it
> wouldn't but it does. However, an XZ in a R4400 or R4600 Indy would be
> rather nice.
I think you are refering to Ian Maplesons website and in particular
his page about the Indy
(<http://futuretech.mirror.vuurwerk.net/indyinfo.html>). I think he
never says that XL in Indy R5K is *always* superior to XZ in Indy
R5K although I know that many people in newsgroups tell it like that
would be the case. I think which option is better depends very much
on the application you are running. It might be possible that XL is
better for overall performance (i.e. much improved 2D performance),
but re-reading Ians page I have not many doubts that simple/moderate
3D tasks plus some floating point orientated stuff (like maybe some
light texture rendering or scientific work) work better on R5K + XZ
(Ian has some additional details on the number of light sources and
or z-buffering required). Thus 3D stuff is done on the GFX board,
while the CPU is free for the rest of the calculations. After all, I
guess that was the whole point about the GE's.
--
Best regards,
Gerhard mailto:mail at g-lenerz.de
Old SGI Stuff http://sgistuff.g-lenerz.de/
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