DescriptionNow in its 24th year, the TOP500 list of supercomputers serves as a “Who’s Who” in the field of High Performance Computing (HPC). The TOP500 list was started in 1993 as a project to compile a list of the most powerful supercomputers in the world. It has evolved from a simple ranking system to a major source of information to analyze trends in HPC. The TOP500 has traditionally been published at the SC in November and at the ISC in June of each year. The 50th TOP500 list will be published in November 2017 just in time for SC17.