22
systems here reached #1 on the TOP500
22 of the 1153 systems in our dataset reached number one on the TOP500 at some point: CM-5/1024, ASCI Red, Earth Simulator, BlueGene/L, Roadrunner, Jaguar and more.
How this is computed
Systems whose stored TOP500 pointer is rank 1. We store one pointer per system, on the edition where it ranked highest, so a system that held #1 shows once. Rank is a link-out pointer, not a copy of the list.
