Hi Rob,
I attacked a similar problem a few summers ago while an intern at
IBM. The application I spent the most time porting was GROMACS, a
computational physics/chemistry/biology code that is used to simulate
substances on the molecular scale. GROMACS code is heavily used in
the popular [EMAIL PROTECTED] screensaver/drug design application, and has
been HIGHLY tuned (down to the assembler level) for ppc 970 and i686
architectures. It is also pretty easy to compile and has a fantastic
developer mailing list (cross compiling for Blue Gene was another
story though.).
There are serial and parallel benchmark systems that are pretty well
understood, see specifically,
http://www.gromacs.org/
and
http://www.gromacs.org/gromacs/benchmark/single-processor-
benchmarks.html
All this said, there is likely someone at IBM (at Watson, Almaden, or
Rochester labs) who has already or will be soon be porting gromacs to
the cell architecture.
regards,
Nathan Moore
On Dec 21, 2006, at 9:21 PM, Rob Sanders wrote:
> Hey folks,
> I was talking with Kai a couple of days ago and he recommended
> taking
> this question
> to the YDL list, so here it is...
> Has anyone done (or know a good link for) some performance
> comparisons of the PS3/Cell
> to "current" top performers in the PPC and x86 arenas? Even something
> relatively "trivial"
> such as multiplying 2 "large" arrays of floating point numbers.
> Ideally processors like
> say a G5 without using altivec, a G5 with altivec, a recent Xeon or
> AMD
> with and without SSE[234], and
> the Cell?
> I know just enough to be considered dangerous about vector
> programming, and I'm trying (in my
> "copious" spare time after family and daytime job) to boot strap
> myself
> on how to work the CELL....
>
>
>
> Rob
>
>
>
>
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Nathan Moore
Physics
Winona State University
AIM:nmoorewsu
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