What happens when a GPU reads memory

 (blog.doubleword.ai)

38 points | by ibobev 2 hours ago

6 comments

  • mathisfun123 0 minutes ago
    YMMV; not all GPUs work exactly like this
  • KellyCriterion 15 minutes ago
    VERY good article, reminds me on:

    "what every programmer should know about memory" https://github.com/Ty-Chen/Reading-List/blob/master/What%20e...

  • yipinwong 54 minutes ago
    This is a type of article that is HN worthy and came to HN for initially because I don't even understand a third of content there. Giving me inspiration to dive deeper.

    SEriously, I don't understand it (yet) lol.

  • snigacookie 15 minutes ago
    Can someone help me understand why I spent 5 minutes reading something that I still don't understand?

    Link for the ELI5 version?

  • empiricus 1 hour ago
    For a long time, the chip manufacturers had an inclination to simplify the hardware and rely on the software adapting and optimizing. But for decades this bid failed. Now we have the unrelenting AI capable of finetuning kernels relatively quickly. Maybe simpler hw will work this time? Note: not sure if TPU/NPU is not only simple but also too limited.
  • brcmthrowaway 34 minutes ago
    Ctrl+F PCIe BAR.. nothing.
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