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cmuratori's profile
Casey Muratori
Casey Muratori
Casey Muratori
@cmuratori

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Casey Muratori

@cmuratori

I'm worried that the baby thinks people can't change.

Seattle
caseymuratori.com
Joined March 2009

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    1. Jonathan Blow‏ @Jonathan_Blow May 18
      Replying to @trishume

      I think we should do what we did in the 1970s, which worked much better than what we are doing today.

      1 reply 0 retweets 6 likes
    2. Tristan Hume‏ @trishume May 18
      Replying to @Jonathan_Blow

      But that's not an option if I want to program GPUs today. I want a CPU-style toolchain straight to machine code for major GPUs cross-platform too. But that's not an option unless I form a decade-long conspiracy of friends to become execs at Apple, MSFT, AMD, Intel, Nvidia...

      2 replies 0 retweets 18 likes
    3. Jonathan Blow‏ @Jonathan_Blow May 18
      Replying to @trishume

      Somebody has to be the adult in the room or things will continue to get worse.

      1 reply 0 retweets 3 likes
    4. Tristan Hume‏ @trishume May 18
      Replying to @Jonathan_Blow

      Like which concrete people do you want to do what concrete action? Everyone should stop working on GPU stuff until execs pay attention to the strike? Just everyone complain on Twitter? Anyone who wants to use a GPU should try to become a MSFT GPU exec instead?

      2 replies 0 retweets 11 likes
    5. Casey Muratori‏ @cmuratori May 18
      Replying to @trishume @Jonathan_Blow

      AMD, nVidia, and Intel each define their own long-term binary ISA and we compile to them. This is what we've been doing for literally decades on every other platform known to mankind. It's time for GPU vendors to stop getting a free pass.

      1 reply 2 retweets 6 likes
    6. Casey Muratori‏ @cmuratori May 18
      Replying to @cmuratori @trishume @Jonathan_Blow

      Instead, for some reason we have these "APIs" that are supposed to make programmer easier, but all they do is multiply the problem, because now you have m APIs times n drivers, so it's an O(m*n) compat problem when it could have just been O(n). It's insane and absurd.

      2 replies 1 retweet 6 likes
    7. Tristan Hume‏ @trishume May 18
      Replying to @cmuratori @Jonathan_Blow

      Yup, everyone wants this, although I think an almost-assembly like CUDA PTX might enable evolution better. The hard part is how to start a project which leads to all OSs and GPU manufacturers coordinating. I think Apple is best integrated for it, but Google much more likely to.

      1 reply 0 retweets 0 likes
    8. hishnash‏ @hishnash May 18
      Replying to @trishume @cmuratori @Jonathan_Blow

      The thing is to get the real benefits out of the hardware your going to need to do hardware specific stuff. And all the hardware can't just be the same due to patents etc.

      1 reply 0 retweets 0 likes
    9. Casey Muratori‏ @cmuratori May 18
      Replying to @hishnash @trishume @Jonathan_Blow

      I don't want one ISA. I mean that's fine if it can happen, but I don't care. I just want an ISA per vendor. There is no reason we can't have this right now, because they all basically do - we just need people to stop with the API layers and make OSes load GPU ISAs like CPU.

      1 reply 0 retweets 3 likes
    10. hishnash‏ @hishnash May 19
      Replying to @cmuratori @trishume @Jonathan_Blow

      You mean not doing final compilation at runtime? That has impacts on performance

      1 reply 0 retweets 0 likes
      Casey Muratori‏ @cmuratori May 19
      Replying to @hishnash @trishume @Jonathan_Blow

      So does doing final compilation at runtime.

      2:46 AM - 19 May 2021
      • 2 Likes
      • ᜶ ᜀᜅ᜔ ᜉᜉᜇᜓᜈᜒ ᜶ Ivan Braidi
      1 reply 0 retweets 2 likes
        1. New conversation
        2. hishnash‏ @hishnash May 19
          Replying to @cmuratori @trishume @Jonathan_Blow

          Sure but one off, if your running at 6 hour simulation that fact that it takes 10 seconds longer to start is not a big factor if that makes it run 2% faster.

          1 reply 0 retweets 0 likes
        3. Casey Muratori‏ @cmuratori May 19
          Replying to @hishnash @trishume @Jonathan_Blow

          Or it makes it run 2% slower, because there's a CRC mismatch and it runs the wrong code path (AMD), or its a different version of the driver that you optimized for and they broke something (everybody), etc., etc. Stable ISAs have their own significant perf advantages.

          1 reply 0 retweets 1 like
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