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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 Jul 14

      This is a great diagram from Anandtech (https://anandtech.com/show/16805/amd-threadripper-pro-review-an-upgrade-over-regular-threadripper/10 …). It uses color to show the relative cost of communicating between any two cores of a 64-core Threadripper. The physical layout of chips is becoming increasingly important to performance-oriented programming!pic.twitter.com/Urh1i0xHzs

      17 replies 121 retweets 600 likes
    2. Tyler Glaiel‏Verified account @TylerGlaiel Jul 14
      Replying to @cmuratori

      I mean at 64 cores if your threads require communicating between each other enough for this to be an issue you probably didn't multithread the right way anyway

      4 replies 0 retweets 21 likes
      Casey Muratori‏ @cmuratori Jul 14
      Replying to @TylerGlaiel

      That assumes that you don't have any difficult problems in the threading, though, which is often true for games but not necessarily always true for other things (compilers, databases, etc.)

      11:34 AM - 14 Jul 2021
      • 1 Retweet
      • 16 Likes
      • rm: can’t stat / antifa space program 🍥 dan Scott Tadman AlFas Aaron Viviano Daniel Gray Felix Eisenkolb Prince_Kiwii
      2 replies 1 retweet 16 likes
        1. New conversation
        2. Jonathan Blow‏ @Jonathan_Blow Jul 14
          Replying to @cmuratori @TylerGlaiel

          Don't worry though, functional languages make your programs parallel by making everything a function and then those functions can just run on all the cores and return their values.

          2 replies 0 retweets 32 likes
        3. Casey Muratori‏ @cmuratori Jul 14
          Replying to @Jonathan_Blow @TylerGlaiel

          Yes, of course - I should have been more specific. Obviously the laws of physics don't reply to return values. I meant it was a great diagram for all the _other_ kinds of values that the universe _does_ apply the laws of physics to!

          1 reply 0 retweets 24 likes
        4. Show replies
        1. Tyler Glaiel‏Verified account @TylerGlaiel Jul 14
          Replying to @cmuratori

          sure, my experience is pretty much only games (and the occasional number crunching) here. which both tend to be easy to design with minimal resource contention. just trying to imagine how you could even accidentally do the worst case scenario here

          0 replies 0 retweets 0 likes
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