• frezik@midwest.social
    link
    fedilink
    English
    arrow-up
    7
    ·
    6 days ago

    Not every problem is amenable to GPUs. If it has a lot of branching, or needs to fetch back and forth from memory a lot, GPUs don’t help.

    Now, does this thing have exactly the same limitations? I’m guessing yes, but it’s all too vague to know for sure. It’s sounds like they’re doing what superscalar CPUs have done for a while. On x86, that starts with the original Pentium from 1993, and Crays going back to the '60s. What are they doing to supercharge this idea?

    Does this avoid some of security problems that have popped up with superscalar archs? For example, some kernel code running at ring 0 is running alongside userspace code, and it all gets the same ring 0 level as a result.