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TimSweeneyEpic's profile
Tim Sweeney
Tim Sweeney
Tim Sweeney
@TimSweeneyEpic

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Tim Sweeney

@TimSweeneyEpic

Epic Games founder & CEO

epicgames.com
Joined August 2013

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    Tim Sweeney‏ @TimSweeneyEpic 19 Sep 2017
    • Report Tweet
    • Report NetzDG Violation

    Now that we have AVX-512, let's move computing to a 512-bit global memory space where SHA512 hashes are pointers.

    9:58 AM - 19 Sep 2017
    • 14 Retweets
    • 55 Likes
    • Angus Θ Zaphoed david doll Timo Heinäpurola Kevin Kügler PedroC Malte Hildingsson MacS7n
    7 replies 14 retweets 55 likes
      1. New conversation
      2. Tim Sweeney‏ @TimSweeneyEpic 19 Sep 2017
        • Report Tweet
        • Report NetzDG Violation

        Want exclusive write access to part of memory? Write your (public_key,signed_value) pair to the hash of your public key.

        2 replies 0 retweets 9 likes
        Show this thread
      3. Tim Sweeney‏ @TimSweeneyEpic 19 Sep 2017
        • Report Tweet
        • Report NetzDG Violation

        The cache coherency protocol rejects improperly signed writes. Like IPFS, but Just Memory.

        2 replies 2 retweets 7 likes
        Show this thread
      4. Tim Sweeney‏ @TimSweeneyEpic 19 Sep 2017
        • Report Tweet
        • Report NetzDG Violation

        There is a market for exactly one of these 512-bit computers worldwide. (But we'll each have a part of it.)

        1 reply 0 retweets 10 likes
        Show this thread
      5. End of conversation
      1. Tim Sweeney‏ @TimSweeneyEpic 19 Sep 2017
        • Report Tweet
        • Report NetzDG Violation

        AVX-512 will enable CPU loop vectorization nearly on par with GPU wavefront execution, once compilers catch up.

        0 replies 2 retweets 5 likes
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      1. Tim Sweeney‏ @TimSweeneyEpic 19 Sep 2017
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        256 bits would leave only 80 bits for addressing all the world's data with birthday collision resistance and payload collision resistance.

        0 replies 0 retweets 1 like
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      1. Chris Dupres  🇨🇦‏ @blaktron 19 Sep 2017
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        Replying to @TimSweeneyEpic

        You want to use AVX units to lookup memory? Do you want to start fires?

        0 replies 0 retweets 2 likes
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      1. rbarris‏ @rbarris 19 Sep 2017
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        Replying to @TimSweeneyEpic

        caches: "why u do dis?!"

        0 replies 0 retweets 2 likes
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      1. rektide de la fay‏ @rektide 19 Sep 2017
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        Replying to @TimSweeneyEpic

        sounds like the start of InterPlanetary Linked Data addressing:https://github.com/ipld/cid#how-does-it-work---protocol-description …

        0 replies 0 retweets 0 likes
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      1. Gerke Max Preussner‏ @gmpreussner 20 Sep 2017
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        640 bits ought to be enough for anyone.

        0 replies 0 retweets 0 likes
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      1. Charlie Demerjian‏ @CDemerjian 23 Sep 2017
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        Replying to @TimSweeneyEpic

        I am pretty sure AVX-512 can't do 512b operations.

        0 replies 0 retweets 0 likes
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