[HH] Hubris Springs Eternal

[Greg London]

Re: efficiency

ZYNQ = CPU + FPGA

The processor runs around 800mhz to 1ghz.
The fpga fabric is reserved for IO and for
specialized tasks. The fpga fabric generally
can only synthesize to 100 to maybe 150mhz,
depending on the design.

This speed difference means that unless the fpga
logic contains a bunch of pipeline stages
(a minimum of around 8 to 10 stages),
then its actually faster to do the algorithm in software.

RE: cost:
the zedboard demoboard with the zynq chip
on it, sells for $400.

A microzed board recently became available and sells for $199.
It has a smaller FPGA area, but if you don't need a lot of
gates, its a cheaper way to get into the arena.


trying to picture someone writing hardware code to
do googling. makes my head spin...

Greg



On Tue, July 1, 2014 12:55 pm, Federico Lucifredi wrote:
> Looks more like adefensive move against ARM.  For big (BIIIG) customers
> like Microsoft, Google, or a financial shop, that kind of manic
> optimization may make sense (and those same customers would have the pull
> and money to order a custom SoC with an ARM core if they wanted).
>
> Cute technically... but unless you are one of the few budding skynets,
> designing the FPGA is the costly hurdle. And if you do a sloppy job, what
> kind of optimization is it? ;-)
>
> Best -F
>
>
> On 06/26/2014 06:45 PM, Kurt L Keville wrote:
>
>> Just so I'm clear here... Intel wants us to give up searching for a
>> solution to our DataCenter problems and come back to the farm... and all
>> it will cost us is an FPGA... if I wanted to program FPGAs, I don't need
>> a Xeon to go along with it!
>>
>> http://gigaom.com/2014/06/18/intel-will-offer-a-customizable-chip-to-ke
>> ep-data-center-clients-happy/
>>
>>
>> _______________________________________________
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>>
>
>
> --
> _________________________________________
> -- "'Problem' is a bleak word for challenge" - Richard Fish
> (Federico L. Lucifredi) - flucifredi at acm.org - GnuPG 0x4A73884C
>
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>


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