The world’s fastest supercomputers are ranked twice a year, and Innovative Computing Laboratory director Jack Dongarra, one academic behind the rankings, noted that the Top500 list of the world’s fastest high-performance computing (HPC) systems is showing “flattening performance” due to the slowdown of Moore’s Law. In the most recent ranking, Japan’s Fugaku ARM-based supercomputer set a record of 442 petaflops. In 2021, however, the first exascale — 1,000 petaflops — supercomputers are expected to appear, including one from the Oak Ridge National Laboratory in Tennessee. Continue reading ARM-Based Supercomputer Earns Top Spot in Global Ranking

In an experiment described in Science, Chinese researchers used photons (also known as light particles) from the country’s quantum-communications satellite and established an instantaneous connection between two ground stations more than 744 miles apart. By doing so, say the experts, China is now a pioneer in harnessing matter and energy at a subatomic level — and a leader in the field of using quantum technology to build a global communications network that can’t be hacked. Meanwhile, the U.S. Department of Energy is paying for companies to develop new supercomputers in pursuit of at least one “exascale” system. Continue reading U.S. and China Continue to Compete in Supercomputing Race