地球シミュレータ
In July 2011, the 8.1 petaflop Japanese K computer became the fastest in the world using over 60,000 SPARC64 VIIIfx processors housed in over 600 cabinets. The fact that K computer is over 60 times faster than the Earth Simulator, and that the Earth Simulator ranks as the 68th system in the world seven years after holding the top spot demonstrates both the rapid increase in top performance and the widespread growth of supercomputing technology worldwide. By 2014, the Earth Simulator had dropped off the list and by 2018 K computer had dropped out of the top 10. By 2018, Summit had become the world's most powerful supercomputer, at 200 petaFLOPS. In 2020, the Japanese once again took the top spot with the Fugaku supercomputer, capable of 442 PFLOPS.