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The thing that surprised me most is that when compared to Summit, the previous #1 powered by POWER9 cores and Nvidia GV100 accelerators, Fugaku seems to show th

The thing that surprised me most is that when compared to Summit, the previous #1 powered by POWER9 cores and Nvidia GV100 accelerators, Fugaku seems to show the exact same power efficiency. > The new Fugaku supercomputer is bigger than Summit in practically every way. It has 3.05x cores, it has 2.8x the score in the official LINPACK tests, and consumes 2.8x the power So were the Nvidia accelerators what drove up Summit's efficiency?

pedrocr 6y ago
With the breakdown of Dennard scaling getting more performance per unit of energy is getting harder and harder. We need another breakthrough to get back on a clearly improving curve. It's surprising how it's exactly the same here though, given how different the two systems are.
jabl 6y ago
> So were the Nvidia accelerators what drove up Summit's efficiency? Yes. And the next generation NVIDIA accelerators (A100) in the Selene computer (#7 on the list) are even more efficient, currently taking the #2 spot on the green500 list (which is essentially the top500 list ordered by performance/watt). Edit: Disclaimer: I work for NVIDIA.