This year marks the 24th anniversary of Top500 (www.top500.org), the website that compiles and releases a list with up-to-date information on world’s top 500 supercomputers. The list is released every June and November, and it became the standard for measuring high-performance computing (HPC). And this November, however, something amazing happened, but somehow expected. According to the Top500’s November list, it looks like all of the top 500 supercomputers are running a Linux-based operating system. In other words, Linux dominates all 500 of the world’s top 500 supercomputers, and that’s a great accomplishment.