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  • brucethemoose - Friday, May 22, 2020 - link

    "All told, training the GameGAN for Pac-Man took a quad GV100 setup four days, over which time it monitored 50,000 gameplay sessions. Which, to put things in perspective of the amount of hardware used, 4 GV100 GPUs is 84.4 billion transistors, almost 10 million times as many transistors as are found in the original arcade game’s Z80 CPU. So while teaching a GAN how to be a Pac-Man is incredibly impressive, it is, perhaps, not an especially efficient way to execute the game"

    Note that it took 4 days to *train*, not execute. A more appropriate analogy would be development time... aka X months of meatbags on typewriters.

    I do wonder what it takes to run at 50 FPS. The plans for a demo suggest you don't need a DGX box that costs more than a house, but can it execute on, say, an 8GB RTX 2070?
  • Lord of the Bored - Friday, May 22, 2020 - link

    I'd hope that running Pac-Man on a 2070 at least equals the original 60FPS.
  • jeremyshaw - Saturday, May 23, 2020 - link

    Costs more than a house?

    Ah, you don't live in this nightmare world called Silicon Valley. Hopefully, remote work will allow people to think of $200k as a house, lol.
  • p1esk - Sunday, May 24, 2020 - link

    Quad GV100 setup is ~$40k. Where did you get $200k from? Also, I don't think $200k will get you a decent house anywhere. Certainly not in Houston, TX.
  • skavi - Tuesday, May 26, 2020 - link

    They are referring to the above mentioned DGX box
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  • eastcoast_pete - Friday, May 22, 2020 - link

    So, how did the AI deal with the copyright/IP issues around PacMan? If it managed to find a loophole by itself, I'd really be impressed (:
  • UltraWide - Friday, May 22, 2020 - link

    LOL

    Fortunately it was in collaboration with NAMCO for their 40th anniversary for PAC-MAN!
  • edzieba - Friday, May 22, 2020 - link

    It created the entire game from scratch, no original code or sprites were copied.
  • soresu - Friday, May 22, 2020 - link

    Well, not really from scratch when it takes 50,000 repetitions of observing the original game to do it - it's basically the neural net equivalent of a savant copying a painting, except in motion and playable.

    The code and the sprites are there, the AI is just taking a guess at the former and copying the latter from what it sees on screen.

    I'd be much more impressed if it really created Pac Man from scratch using no more than a description of game play.

    I'll be even more impressed when it can meet and surpass the efforts of ReactOS in reverse engineering Windows (at this point they may as well give up).
  • surt - Saturday, May 23, 2020 - link

    Funny, but no, there would be no copyright issues since it's demonstrable that no copying took place.
  • ajp_anton - Friday, May 22, 2020 - link

    When actually executing the game, would this be more efficient than the original one? And what about storage space?

    This kind of game would be a hell to debug though.
  • Lord of the Bored - Saturday, May 23, 2020 - link

    No way in heck a trained neural net runs faster or in less space than a couple K of Z80 ASM.
    Especially not if it has to use modern IO. A minimal USB stack is more code, and takes more processing time, than all of Pac-Man.
  • Spunjji - Tuesday, May 26, 2020 - link

    "A minimal USB stack is more code, and takes more processing time, than all of Pac-Man"

    Doof. That really puts things in perspective!
  • Lord of the Bored - Tuesday, May 26, 2020 - link

    Yeah, Pac-man was... honestly larger than I thought. 16 kilobytes of ROM and 4K of RAM. Attached to a 3-MHz Z80.
    I'd say they're all popcorn chips today, but popcorn chips are an order of magnitude more capable.
  • Lord of the Bored - Saturday, May 23, 2020 - link

    The thing I find most amusing about this is that it failed to identify the simple algorithyms that constitute ghost behavior. The AI thinks "don't kill Pac-Man" is a game rule.
    Even in the brief snippet of play shown, the AI failed to learn that the ghosts flee Pac-Man when he is energized.
  • GeoffreyA - Sunday, May 24, 2020 - link

    Quite astounding, even if it is early first steps. Perhaps there'll come a time when we see an AI generating something like Elder Scrolls 28: Return to Valenwood ;)
  • Ej24 - Sunday, May 24, 2020 - link

    Nah 100 years from now we'll only be on elder scrolls 7.
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