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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. Casey Muratori‏ @cmuratori 30 Sep 2014
      Replying to @bmcnett

      @bmcnett I would actually be fine with two architectures for GPUs, too (like x64 and ARM). Just stop adding driver / API on top.

      1 reply 0 retweets 0 likes
    2. Tom Forsyth‏ @tom_forsyth 30 Sep 2014
      Replying to @cmuratori

      @cmuratori @bmcnett Out of interest - how close do you think Mantle is to what you want?

      2 replies 0 retweets 0 likes
    3. Deano Calver‏ @DeanoC 30 Sep 2014
      Replying to @tom_forsyth

      @tom_forsyth @cmuratori @bmcnett Whilst the shader cores might be able to share an arch spec in 5yr, can't see the rest being stable enough.

      1 reply 0 retweets 0 likes
    4. Rys Sommefeldt‏ @ryszu 30 Sep 2014
      Replying to @DeanoC

      @DeanoC @tom_forsyth @cmuratori @bmcnett even that is impossible

      1 reply 0 retweets 0 likes
    5. park avenue‏ @t_murray 30 Sep 2014
      Replying to @ryszu

      @ryszu @DeanoC @tom_forsyth @cmuratori @bmcnett the instant you expect GPUs to have a real spec is when the architecture cycles take 8 years

      1 reply 0 retweets 0 likes
    6. Deano Calver‏ @DeanoC 30 Sep 2014
      Replying to @t_murray

      @t_murray @ryszu @tom_forsyth @cmuratori @bmcnett For base shader arch, what are we at 3-5 years? Does the base ISA change more often?

      1 reply 0 retweets 0 likes
    7. park avenue‏ @t_murray 30 Sep 2014
      Replying to @DeanoC

      @DeanoC @ryszu @tom_forsyth @cmuratori @bmcnett going from my experience at nv, complete overhaul within three years

      1 reply 0 retweets 0 likes
    8. park avenue‏ @t_murray 30 Sep 2014
      Replying to @t_murray

      @DeanoC @ryszu @tom_forsyth @cmuratori @bmcnett but that doesn't even matter--CPU ISAs have fixed resources, GPUs don't.

      1 reply 0 retweets 0 likes
    9. park avenue‏ @t_murray 30 Sep 2014
      Replying to @t_murray

      @DeanoC @ryszu @tom_forsyth @cmuratori @bmcnett if we were remotely close to this, compute APIs would be vaguely portable, and they're not

      1 reply 0 retweets 0 likes
    10. Rys Sommefeldt‏ @ryszu 30 Sep 2014
      Replying to @t_murray

      @t_murray @DeanoC @tom_forsyth @cmuratori @bmcnett base ISA for us changes non-trivially each generation

      3 replies 0 retweets 0 likes
      Casey Muratori‏ @cmuratori 30 Sep 2014
      Replying to @ryszu

      @ryszu @t_murray @DeanoC @tom_forsyth @bmcnett Yes, because it can. Intel would change theirs the same way _if they could_.

      5:11 PM - 30 Sep 2014
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Casey Muratori‏ @cmuratori 30 Sep 2014
          Replying to @cmuratori

          @ryszu @t_murray @DeanoC @tom_forsyth @bmcnett But the point is that it becomes valuable to have a stable ISA, so you work around it.

          2 replies 0 retweets 0 likes
        3. park avenue‏ @t_murray 30 Sep 2014
          Replying to @cmuratori

          @cmuratori @ryszu @DeanoC @tom_forsyth @bmcnett Intel can also afford N years post-tapeout to sale for validation. GPU vendors can't

          1 reply 0 retweets 1 like
        4. Show replies

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