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Optimizing isn't either SIMD or large scale multi-threading. You need both, which is why CPUs and GPUs both use both techniques.
by CyberDildonics 2y ago
Optimizing isn't either SIMD or large scale multi-threading. You need both, which is why CPUs and GPUs both use both techniques.
- dragontamer 2y agoFair enough. GPUs in particular have a very hyperthread/SMT like model where multiple true threads (aka instruction pointers) are juggled while waiting for RAM to respond. Still, the intermediate organizational step where SIMD gives you a simpler form of parallelism is underrated and understudied IMO.