• wewbull@feddit.uk
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    3 days ago

    Everybody understands what you’re saying. Yes, the source of randomness in a computer is deterministic (unless you have a physical source of entropy). Every computer program is deterministic.

    Nothing about the operation of LLMs relys on that determinism or views it as useful. LLMs are probabilistic in nature and require randomness (emulated or real). When people are saying it’s not deterministic they are stating that there are multiple outputs possible for a single input (excluding the seed to the RNG because it’s not necessary to use a deterministic source of randomness).

    That is fundamentally different to a compiler, which is the overall point being made.

    • hirihit640@sh.itjust.works
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      3 days ago

      The compiler can use rng too. From the gcc docs:

      Sometimes gcc will opt to use a randomized model to guess branch probabilities, when none are available from either profiling feedback (-fprofile-arcs) or __builtin_expect.

      More info here: https://stackoverflow.com/questions/52974259/what-are-some-examples-of-non-determinism-in-the-c-compiler

      I’m willing to bet many people are not even aware that modern compiler optimizations use prng. Not to mention incorrect usage of the term “determinism” when referring to CS concepts. This is exactly what Linus is talking about when he cited lack of understanding of compiler behavior. I do believe there are notable differences between AI and compiler, but a lot of the reasons people give against AI are reactionary and not well thought out.

      • wewbull@feddit.uk
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        2 days ago

        I’m done. This is a pointless exercise. You’re refusing to engage on the core point and keep dancing around on semantics. None of this makes an LLM like a compiler.