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A Glimpse Inside the Cell Processor
XenoPhage writes "Gamasutra has up an article by Jim Turley about the design of the Cell processor, the main processor of the upcoming Playstation 3. It gives a decent overview of the structure of the cell processor itself, including the CBE, PPE, and SPE units." From the article: "Remember your first time? Programming a processor, that is. It must have seemed both exciting and challenging. You ain't seen nothing yet. Even garden-variety microprocessors present plenty of challenges to an experienced programmer or development team. Now imagine programming nine different processors all at once, from a single source-code stream, and making them all cooperate. When it works, it works amazingly well. But making it work is the trick."
As TFA mentioned, this has the potential of becoming another Sega Saturn boondoggle. Will the developers learn how to fully utilize this incredibly complex architecture? Relying on the "octopiler" to efficiently map to the Cell architecture seems a bit optimistic and naive.
...on the average, one of the slave processors is non-functional./
Read more about the yield problems of the Cell chip here:
http://theinquirer.net/default.aspx?article=32978
Fabrication yield is estimated at only 10% to 20%, which is very low for the industry.
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