The Top 500 organization has just released its semi-annual list of the fastest supercomputers in the world. For the third list running, the Chinese Tianhe-2 supercomputer tops the list. This time around, the top ten fastest supercomputers was almost identical to the list published six months ago. The only newcomer to the list is a Cray CRAY +0.79%supercomputer that has been installed at an “undisclosed U.S. government site,” according to the organization. The Tianhe-2 has been installed at the National University of Defense Technology. Its speed, according to the organization’s benchmark, is 33.86 petaflop/s. That’s nearly twice the speed of the second-fasted computer, a Cray supercomputer installed at the Oak Ridge National Laboratory. The United States still has the most supercomputers in the top 500 at 233, but that’s 32 fewer than it had on November’s list. China has 76 supercomputers on the list, up from 63 on November’s list. As part of compiling the fastest supercomputer list, the Top500 organization also tracks the growth of supercomputer performance overall. Notably, that growth is lagging. According to its press release, the last two lists show that “the overall growth rate of all the systems is at a historical low.”

Recommended by Forbes

Chinese Supercomputer Is Now The World’s Fastest – By A Lot China Still Has The World’s Fastest Supercomputer

Among businesses building supercomputers, HP has the most systems on the list with 182, IBM is in second with 164, and Cray is third with 51.