[ydl-gen] PS3 Linux and Controller
Henry A. Leinhos
henry at leinhos.com
Fri Oct 20 06:23:18 MDT 2006
Derick,
I'm not sure how either of your references addresses the original comment
that the Cell SPEs are not SMP cores, but rather co-processors.
Looking at IBM's developer references:
http://www-306.ibm.com/chips/techlib/techlib.nsf/products/Cell_Broadband_Eng
ine
there are several papers addressing the Cell architecture. One
(2053_IBM_CellIntro.pdf) presents a good overview of the Cell. In it it
refers to several programming models for the SPEs: device extension model,
function offload model, and streaming programming model. The SPEs are
*clearly* co-processors tightly coupled with a modified PPC 970. The power
in the cell is that it provides the hardware for very efficient parallel
signal processing, not that it is a 9-way SMP machine (1 PPC + 8 SPEs).
Regards,
Henry
Derick Centeno writes:
> Henry,
>
> I believe you misread the Wikipedia reference.
>
> Perhaps that is not the case, it is also possible that between the time
> you referenced it and I did, additions were made which were not there
> before.
> Let's be clear that as convenient as Wikipedia is; it is not reliable as
> a consistent reference. The author of the article for Wikipedia
> complains that he didn't use all his references as Wikipedia's system is
> doesn't meet professional standards.
<blah blah blah>
> The link however, which I provided earlier published by High
> Productivity Computing is from very reputable sources and no one there
> is engaged in hiding or slanting the facts. Here is that link again:
>
> http://www.hpcwire.com/hpc/967146.html
>
> Another different analysis from a reputable publication Ars Technica is
> here:
>
> http://arstechnica.com/articles/columns/linux/linux-20061018.ars
>
>
>
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