Supercomputing is becoming super-efficient. The highest climber in the latest Top500 list of the worldR17;s fastest supercomputers is also one of the highest scorers on the Green500 ranking of the worldR17;s most efficient.
But the November 2017 edition of the Top500 and Green500 is also remarkable in other ways, as it marks a tipping point in U.S. dominance of the list.
Chinese systems now outnumber U.S. systems on the list by 202 to 144 — a reversal of the situation just six months ago, when the U.S. had 169 systems in the Top500 to China’s 160. It will still be a long while before third-placed Japan overtakes the U.S.: It has 35 systems in the list, followed by Germany with 20, France with 18, and the UK with 15.