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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: combjelly who wrote (255197)	8/5/2008 1:12:58 AM
From: graphicsguru	Read Replies (2) \| Respond to of 275872

it is hard to believe that everything is cache resident, or that the resources don't get saturated well before 64 cores are reached. Why? They're doing tile-based rendering. Which resource do you expect to get saturated? Each tile is essentially independent, and the tiles don't have to speak to each other. The transformed geometry gets broadcast to all CPUs. It's the perfect case for parallelism. The bigger issue is load balancing. When the number of processors starts getting close to the number of tiles, then load balancing becomes tricky. You may not be able to reduce the tile size without losing the benefits of vectorization.