The latest update to the list of the world's 500 most powerful supercomputers saw only one new entry in the top ten, confirming that although these devices are still improving their performance, the pace of innovation is slowing down.
Perlmutter, a US-based supercomputer located at the Department of Energy's Lawrence Berkeley Laboratory, entered the June edition of the Top500 list in fifth position, bumping Nvidia's Selene device to sixth place.
At 64.6 petaflops, Perlmutter is the most notable change to the list; it also fared well in the Green500 list, which focuses on the energy efficiency of supercomputers, claiming the number six spot thanks to a power efficiency of 25.55 gigaflops per watt.
In total, there were only 58 new entries in the Top500 list. This is not far off the record-low of 44 new entrants registered last November, and indicates a slow-down compared to earlier years. In 2007, for example, 300 new devices made it to the ranking.