Afaik, gpu cores a very stripped down cpu cores that do basic math, but what sort of math can cpus do that gpus can’t

I’m talking, cpu core vs Tensor/Cuda cores.

  • PolishTar@alien.topB
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    10 months ago

    CPUs and GPUs are both Turing complete, so from a computation perspective, they can technically do the same things. However each is optimized for a different set of metrics, so it may be wise to target a particular workload to one over the other.

    The CPU is optimized for minimum latency, aka maximum single threaded performance. This is really important for a lot of workloads.

    GPUs are optimized for maximum throughput and are willing to suffer higher latency to achieve it. There are many architectural differences as a result of this goal, for example: GPUs don’t have branch prediction, they also don’t have out of order processing, and also have much smaller caches per computational unit. All of these saves a ton of transistors, which can be used to add more cores.

    • tomytronics@alien.topB
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      10 months ago

      So no point in making Linux or Windows that can run 100% within GPU and leaving a very minimal CPU to handle data transfer between drives, keyboard, etc and GPU.

      I’d like to see someone with a 4090 GPU running Windows and a Motorola 68000 as the CPU to handle drives.