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forstall_'s profile
Forstall
Forstall
Forstall
@forstall_

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Forstall

@forstall_

Joined April 2013

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    1. Yaman Tasdivar‏ @ValueAnalyst1 22 Apr 2019

      @elonmusk @karpathy Can you prove that @Tesla HW3's 144 TOPS will be enough for FSD with the safety level necessary for regulatory approval and that @nvidia DRIVE Pegasus' 320 TOPS is excessive?

      17 replies 11 retweets 128 likes
      Show this thread
    2. Scott Wainner‏Verified account @scottwww 22 Apr 2019
      Replying to @ValueAnalyst1 @elonmusk and

      Pegasus is 500W vs HW3’s 72W

      7 replies 8 retweets 182 likes
    3. Elon Musk‏Verified account @elonmusk 22 Apr 2019
      Replying to @scottwww @ValueAnalyst1 and

      Exactly. Also, you can’t actually use computation from a separate GPU effectively, as you get choked on the bus, so most of the computation is irrelevant. High power, high cooling, but low true, usable TOPS. Worst of all worlds.

      27 replies 54 retweets 629 likes
      Forstall‏ @forstall_ 22 Apr 2019
      Replying to @elonmusk @scottwww and

      The latency of copying data to NVIDIA’s GPU as well as batching 2^X jobs is extremely high. By the time you finished, the frame you’re processing is likely extremely outdated

      10:35 PM - 22 Apr 2019
      • 5 Retweets
      • 54 Likes
      • Jorge Omar Chris Midwest Tropicals Hazel Player Ad Astra! Shortstack😎🚗🚀🕳🛰🛸🐌 Avatarhash 💧SP 💉💉💉💉 Lauren Row
      1 reply 5 retweets 54 likes
        1. New conversation
        2. Chris‏ @Christiano92 23 Apr 2019
          Replying to @forstall_ @elonmusk and

          Because you are comparing against a 3 years old Drive PX 2. A chip that's about 3 generations old, without Tensor Cores for performing DL matrix operations, without HBM, without NVLink, without DLA, etc. 2016 vs. 2019, sounds fair. Why not compare with Turing chip architecture?

          2 replies 0 retweets 2 likes
        3. Forstall‏ @forstall_ 23 Apr 2019
          Replying to @Christiano92 @elonmusk and

          I’m currently using the GTX 2080 Ti and using CUDA for a compression app. The latency is still extremely high to the point where I can’t do real time compression.

          2 replies 0 retweets 2 likes
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