kars on 27 May 2009
| Jo21 said: Cell have PPE too. that does the syncing with all the others SPUS. |
Or to describe it more precisely: The PPE/PPU is the real processor optimized for for Random Access, while the SPUs are streaming processors. They depend on a single data stream that delivers everything to their local memories. If you can't work this way (depends on informations from several sources you are in deep trouble! If you use the PPE to collect this data or not, doesn't matter. The SPU can't do anything useful till its stream is ready. On the Xbox360 this doesn't happen because the architecture can do its own load balancing as every other multi core.
