OMG!!!CELL can do realtime RAYTRACING with just software!!!!

[staticneuron]

kars said: And I still rais the issue: check your numbers. The amount of local memory that you grant a single SPE is more than the amount of memory available on the whole cell. A single SPE has 512 KB of memory and its basic limitation lies in the interaction of its units and in task switches, and if i am not totally mistaken this will become a major hazard in the cell of the PS-3. Either you don't really use them efficiently or they are in the process of flooding the internal bus and their common memory interface. The cell has certain advantages and certain disadvantages. Another thing I find funny is how much some people value special benchmarks. in reality ih the profesional world benchmarks are more or less seen as smoke screens. You really has to think about what you are measuuring and what kind of hazards you miss. The only realiable benchmarks are benchmarks with your real applications and real data.

There are no bottlenecks when the PPE is communicating with the SPE's. There is a slight overhead when communicating on the EIB with the XDR and the RSX but not that much to "flood" the EIB (from my studies wouldn't be easy to do by accident). You can program bad for the PS3 but you can also do the same for any proc. It works differently, so whatever seems like a disadvantage just means you should look at a problem in a different way.