FWIW: The bigger picture... Or why I have been asking a lot of questions lately...

[Tom Buskey]

IBM was working on a Cell on a card to plug into a motherboard for use
in supercomputer clusters.  Much like nvidea's tesla gpu cards.



On 10/11/09, Jim Kuzdrall <gnhlug at intrel.com> wrote:
> Greetings Bruce,
>
>     Interesting and challenging project!
>
> On Saturday 10 October 2009 15:20, Bruce Labitt wrote:
>> For anyone that is remotely interested, here is the big picture for
>> the problem I'm trying to solve.  If you are not interested, hey
>> delete the post.  Won't irritate me in the least!
>>
>     If you just transferred the data (no framing or error checking), how
> many bits per second must you transfer to keep up with the FFT data
> production?
>
>     Did you explore adding a dedicated FFT card to your control
> computer?   The algorithms they build into the hardware are much, much
> faster than compiled software.  The local board would keep the data in
> your control computer - with DMA, I assume - eliminating the transfer
> problem.
>
>     I know a fellow who now works for Apple whose job is to optimize FFT
> algorithms to the processor they use.  Assembly language, of course.
> Why is Apple interested?  Faster FFT, faster MP3 translation, longer
> battery life.  A very high payoff.
>
> Jim Kuzdrall
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