One thing is having a bunch of computers. Another thing is to get the working efficiently on the same problem. While I'm not sure exascale was something like t

One thing is having a bunch of computers. Another thing is to get the working efficiently on the same problem. While I'm not sure exascale was something like the sound barrier, I do know a lot of hard work has been done to be able to efficiently utilize such large clusters. Especially the interconnects and network topology can make a huge difference in efficiency[1] and Cray's Slingshot interconnect[2], used in Aurora[3], is an important part of that[4]. [1]: https://www.hpcwire.com/2019/07/15/super-connecting-the-supercomputers-innovations-through-network-topologies/ https://www.hpcwire.com/2019/07/15/super-connecting-the-supe... [2]: https://www.nextplatform.com/2022/01/31/crays-slingshot-interconnect-is-at-the-heart-of-hpes-hpc-and-ai-ambitions/ https://www.nextplatform.com/2022/01/31/crays-slingshot-inte... [3]: https://www.alcf.anl.gov/aurora https://www.alcf.anl.gov/aurora [4]: https://arxiv.org/abs/2008.08886 https://arxiv.org/abs/2008.08886