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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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    Casey Muratori‏ @cmuratori 27 May 2015

    Look, @intel, the AVX-512 suspense is too much! PLEASE TELL US WHETHER IT IS COMING TO DESKTOP SKYLAKE!

    3:59 PM - 27 May 2015
    • 2 Retweets
    • 3 Likes
    • Mathias W Jonathan Evraire Bram Stolk Daan Nijs
    1 reply 2 retweets 3 likes
      1. New conversation
      2. Tom Forsyth‏ @tom_forsyth 28 May 2015
        Replying to @cmuratori

        @cmuratori I thought that was confirmed? IIRC, the ISA is coming, but it's double-pumped through 256-bit ALUs. Which they have two of.

        1 reply 1 retweet 0 likes
      3. Casey Muratori‏ @cmuratori 28 May 2015
        Replying to @tom_forsyth

        @tom_forsyth Can you find some confirmation posted somewhere? I really hope this is true! I am super psyched for AVX-512.

        3 replies 0 retweets 0 likes
      4. Show replies
      1. New conversation
      2. Fiora‏ @FioraAeterna 29 May 2015

        @AndrewLauritzen @tom_forsyth @rygorous @cmuratori I used AVX2 opts at my last job but it ran on in-house commodity servers mostly

        1 reply 0 retweets 0 likes
      3. Fiora‏ @FioraAeterna 29 May 2015
        Replying to @FioraAeterna

        @AndrewLauritzen @tom_forsyth @rygorous @cmuratori it was runtime loaded assembly, so it picked whatever opts the CPU supported

        1 reply 0 retweets 0 likes
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      2. Tom Forsyth‏ @tom_forsyth 29 May 2015

        @AndrewLauritzen @kenpex @FioraAeterna @rygorous @cmuratori It will be interesting seeing the perf benefits of AVX512 on an OOO machine.

        1 reply 0 retweets 0 likes
      3. Tom Forsyth‏ @tom_forsyth 29 May 2015
        Replying to @tom_forsyth

        @AndrewLauritzen @kenpex @FioraAeterna @rygorous @cmuratori The ISA produces a big step up in efficiency, but OOO can hide many evils.

        1 reply 0 retweets 0 likes
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      1. Tom Forsyth‏ @tom_forsyth 29 May 2015

        @AndrewLauritzen @kenpex @FioraAeterna @rygorous @cmuratori I know all the nice integer ones vanished, but does it still have float16?

        0 replies 0 retweets 0 likes
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      2. Fabian Giesen‏ @rygorous 29 May 2015

        @AndrewLauritzen The whole problem with any Intel ISA extensions is that they only become useful for mainstream when widely available!

        1 reply 0 retweets 0 likes
      3. Fabian Giesen‏ @rygorous 29 May 2015
        Replying to @rygorous

        @AndrewLauritzen "I need to make this even faster on the most bleeding-edge machines, screw our min spec" is not how it works. :)

        1 reply 0 retweets 3 likes
      4. Show replies
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      2. Fabian Giesen‏ @rygorous 29 May 2015

        @AndrewLauritzen I like ISPC but it solves the wrong problem on two axes.

        1 reply 0 retweets 0 likes
      3. Fabian Giesen‏ @rygorous 29 May 2015
        Replying to @rygorous

        @AndrewLauritzen One, the code for the newer ISAs is great and the code for ~SSE2 level is neglected. Opposite of what you need.

        1 reply 0 retweets 0 likes
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