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Re: Do we know how many cores PS2 / Forgelight can use?
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Originally Posted by Was_Ash_Emerald
Most games even today that are multi-core are dual core or even they use more cores than that are "dumb". Meaning, they put AI on one core, rendering on another core, other game logic on another core, etc.
A truly advanced engine that's genuinely multithreaded would scale dynamically at a much deeper level, which would mean even 6 or 8 cores could all be used.
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It's a tough balancing act to utilize all the cores in a system while still allowing for a small number of cores. The reason many game systems use the separation you mentioned above is because there is an inherent order needed by the game code for things to correctly display. This simplified approach allows good control over the order of things. Not all operations done by game engines can be made to simply go "wide" across all available cores, but some can.
What works well on an i7 (HT-quad core) may significantly reduce performance on a Xeon quad-core if done incorrectly. What works well on a dual-core system may leave a quad core twiddling it's thumbs.
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2012-06-04, 04:58 PM
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