Wojciech Muła

@pshufb

I'm a disaster in disguise.

Wroclaw, Lower Silesia
0x80.pl
Vrijeme pridruživanja: studeni 2015.
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  1. Prikvačeni tweet
    27. sij

    Paper: "Efficient Computation of Positional Population Counts Using SIMD Instructions" () by , and me.

    1 reply 8 proslijeđenih tweetova 34 korisnika označavaju da im se sviđa
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  2. proslijedio/la je Tweet
    prije 2 sata

    In our CC'20 paper, compilers get a step closer towards having a single, unified, vectorizer.

    1 reply 5 proslijeđenih tweetova 14 korisnika označava da im se sviđa
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  3. proslijedio/la je Tweet
    prije 10 sati

    🆕🗜️Jagiellonian scientist triumphs over Google in patent battle #⃣

    2 proslijeđena tweeta 7 korisnika označava da im se sviđa
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  4. proslijedio/la je Tweet
    5. velj

    IOT is great, they said

    5 replies 49 proslijeđenih tweetova 146 korisnika označava da im se sviđa
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  5. 3. velj

    Why not use existing facilities and build on top of std::thread? What was a blocker?

    TIL: "std::jthread is now the recommended way to start a thread in C++ - I think it would be fair to consider std::thread deprecated, and maybe reflect on how we got into this infortunate situation..."
    1 reply
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  6. proslijedio/la je Tweet
    3. velj

    TIL: "std::jthread is now the recommended way to start a thread in C++ - I think it would be fair to consider std::thread deprecated, and maybe reflect on how we got into this infortunate situation..."

    5 proslijeđenih tweetova 8 korisnika označava da im se sviđa
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  7. proslijedio/la je Tweet
    2. velj

    Pushed a bunch of updates to x86-info-term, including data from

    9 proslijeđenih tweetova 19 korisnika označava da im se sviđa
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  8. proslijedio/la je Tweet
    2. velj

    In this paper, researchers have presented SLEEF: a portable SIMD library which implements a vectorized version of all C99 real floating-point math functions, showing performance comparable to Intel SVML.

    36 proslijeđenih tweetova 79 korisnika označava da im se sviđa
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  9. 2. velj

    If you ask me, a flask is the greatest invention ever.

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  10. proslijedio/la je Tweet
    1. velj

    Science and Technology links (February 1st 2019): kiss frequency is a predictor of a good relationship, first stem-cell transplants in heart patients, mitochondria live in our blood stream, and more

    3 proslijeđena tweeta 6 korisnika označava da im se sviđa
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  11. proslijedio/la je Tweet
    31. sij

    There're quite a few reasons why SIMD's not used more often: 1) it's hard & u need C++ (or similar low-level lang) 2) Concurrency's difficult but arcane CPU/GPU instructions're horror movie 3) It's also far from being stand. We need smth like SIMDanywhere

    Possible answer: all mainstream/popular algorithm text books are single-data-stream oriented, most students never heard about SIMD, SIMD in the wild used to be a niche, SIMD is not obvious (except obvious cases). No knowledge => no widespread adaptation. But this is changing.
    6 replies 3 proslijeđena tweeta 8 korisnika označava da im se sviđa
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  12. 31. sij

    Possible answer: all mainstream/popular algorithm text books are single-data-stream oriented, most students never heard about SIMD, SIMD in the wild used to be a niche, SIMD is not obvious (except obvious cases). No knowledge => no widespread adaptation. But this is changing.

    I’m still pretty shocked they SIMD isn’t used more often. This will bring some nice speed ups.
    1 reply 3 proslijeđena tweeta 33 korisnika označavaju da im se sviđa
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  13. proslijedio/la je Tweet
    30. sij

    My vectorized sorting extravaganza is out and about. A LOT of work went into this (referring to the javascript in the posts :) Read, retweet, send scathing reviews, open issues, heat your house with it: This goes to Eleven! Pt. 1-3, code, nuget out:

    8 replies 64 proslijeđena tweeta 134 korisnika označavaju da im se sviđa
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  14. 28. sij

    Marcus' repository provides implementations for 8-, 16-, and 32-bit pospopcounts. Contributions are warmly welcomed!

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  15. proslijedio/la je Tweet
    28. sij

    Lwan 0.3 has been tagged! It only took me 8 years to get to this point! :) Since last year: in the src directory alone, there were 83 files changed, 6225 lines added, 4343 lines removed. Code has gotten clearer, safer (thanks !), and more efficient all around.

    1 reply 1 proslijeđeni tweet 10 korisnika označava da im se sviđa
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  16. proslijedio/la je Tweet
    26. sij

    Some performance tricks when using the RoaringBitmap library

    24 proslijeđena tweeta 48 korisnika označava da im se sviđa
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  17. proslijedio/la je Tweet
    23. sij

    New blog post! In "Learning from data" we'll talk about vertex cache optimization again - starting from an algorithm built by a human, using analysis tools to understand the hardware behavior better, and using the machine to make the algorithm better.

    56 proslijeđenih tweetova 185 korisnika označava da im se sviđa
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  18. proslijedio/la je Tweet
    24. sij

    🆕📶"Communication-Efficient String Sorting" 📄 📀 #⃣

    2 proslijeđena tweeta 8 korisnika označava da im se sviđa
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  19. proslijedio/la je Tweet
    22. sij

    Psssst!

    65 proslijeđenih tweetova 235 korisnika označava da im se sviđa
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  20. proslijedio/la je Tweet
    22. sij

    The hardest thing about lock-free programming isn't writing lock-free code, it's convincing people to not write lock-free code.

    5 replies 11 proslijeđenih tweetova 50 korisnika označava da im se sviđa
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