• NotMyOldRedditName@lemmy.world
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    6 hours ago

    They aren’t making a datacenter like on earth. They’re putting up a ton of satellites that will each generate about 100kW.

    Everyone keeps thinking they’re putting these massive things up there, they are not doing that.

    Edit: Oh I missed your tool this time was a real calculator this time, thank you! That says 127 square meters, with black body, 70c and 1 (but no idea if those are good values)

    • brucethemoose@lemmy.world
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      6 hours ago

      That’s interesting, but what’s the point? If it’s like 2 DGX boxes in each satellite, spaced out, the interconnect between them is going to be very slow, and the individual computational power of each satellite will not be that impressive.

      And if you connect them all in one constructed mesh and wire them together, well, you’ve made a 200MW datacenter! The economies remain the same.

      If hardware gets more power efficient, well… Then why do you need to go to space anymore?

      • NotMyOldRedditName@lemmy.world
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        5 hours ago

        Ya, the economies of how much total space / material for the global network is similar, although lets say higher due to losses in efficiency in distributing it over so many dishes, but in terms of how big any individual radiator is and how much space each one is going to take, the smaller sizes make it easier to manage. Trying to figure out a 150-200m2 solar panel radiator is a lot easier than trying to figure out a 1km2

        The individual power of each satellite having to use a mesh network to train might not be fast enough, maybe they’ll still use land based ones for training, but no single person needs more compute than what a satellite can provide. So from the inference / customer computation side of things, it isn’t a problem.

        edit: I meant radiator, not solar panel

        edit: looks like blackwells can run sunstained at 88c, so that will help a bit more as well on size, the calculator now says 103m2 instead of 127m^2