It appeared that during the trade war and tech war started by President Trump, the Chinese got fed up and decided not to submit any entrants into the Top 500 supercomputer listing, which comes out every six months.The Chinese stop telling the world officially about their supercomputers, that was the story.
But then, there was some additional contests or computing tasks, where the Chinese supercomputer solved the problem, thereby telling others they had already developed the exascale supercomputer and were using it.
How fast is this Chinese exascale supercomputer? Those details are kind of murky. Heh!