[wlug] Roll On The ARM-Based Supers

Report on the status of ARM-based supercomputing <https://www.nextplatform.com/2023/11/28/hpc-pioneers-pave-the-way-for-a-flood-of-arm-supercomputers/>. The Fugaku machine was top of the Top500 list from June 2020 to November 2021, which was a pretty decent run. That Fujitsu A64FX chip also powers other supers on the list. But now more entrants are on the way. In terms of user experience, the article reports quite a mixed bag. Some apps are yet to be tuned to wring maximum performance out of ARM hardware, while others build and run nicely without any drama at all. And of course, at some point we should see the first RISC-V machine(s) enter the list.