Comment by pantalaimon
14 hours ago
Starlink already solved those problems, they do 200 GBit/s via laser between satellites.
And for data centers, the satellite wouldn't be as far apart as starlight satellites, they would be quite close instead.
14 hours ago
Starlink already solved those problems, they do 200 GBit/s via laser between satellites.
And for data centers, the satellite wouldn't be as far apart as starlight satellites, they would be quite close instead.
No they didn't. 200Gb/s is 25GB/s, so... They could run 1/36th of a single current-gen SXM5 socket. Not even any of the futuristic next-gen stuff. 25GB/s is less than the bandwidth of one X16 PCIe3 socket. And that's already assuming the best-case scenario, and in reality trying to sync up GPUs like that would likely have loads of other issues. But even just the sheer amount of inter-GPU bandwidth you need is quite extreme. And this isn't some point-to-point routing like Starlink trying to get data from A to B, this is maintaining a network of interconnected systems that need to communicate chaotically and with uneven demand.