China is preparing the most powerful and rare exascale supercomputer on the planet. No GPU: only Chinese CPUs
An exascale supercomputer is one capable of performing at least 1 exaflop (10¹⁸) of floating point operations per second. These machines are the most powerful currently available if we stick to classic computers and leave aside the prototypes of quantum computers. The classification TOP500 identifies the most capable supercomputers on the planetand, as expected, four exascale machines appear at the top of this list: The Captain, FrontierAurora and Jupiter. The first three reside in the United States and the fourth in Germany. Curiously, no Chinese supercomputer appears in the top ten positions of this classification, although we know that some of its most powerful machines are not officially reported to the TOP500 for geopolitical reasons. Be that as it may, the Government led by Xi Jinping is determined to change this scenario. And the Shenzhen National Supercomputing Center has announced that is going to build a supercomputer called Lingshen that, according to this institution, will have a sustained performance of more than 2 exaflops and will integrate only components designed and manufactured in China. Lingshen supercomputer architecture is very unusual The supercomputer ‘The Captain’ from the Lawrence Livermore National Laboratory (USA) is a real beast. This machine exceeds 1.8 exaflops, making it currently the most powerful on the planet. The APUs are responsible for its brute force. Instinct MI300A from AMD, which work hand in hand with the EPYC 9005 processors. However, the most surprising thing is that it brings together no less than 11,340,000 cores and delivers 1,809 PFlops/s Rmax and 2,821.10 PFlops/s Rpeak. Lingshen will bring together 47,000 processors of Chinese origin that will be distributed in Huawei Kunpeng servers The architecture of ‘El Capitan’ is very similar to that of the other supercomputers in the TOP500 classification, but the machine being prepared by the Shenzhen National Supercomputing Center is going to take different paths. And it is that according to Lu Yutongthe director of this center, the Lingshen supercomputer will use only general purpose processors (CPU), and will not use GPU. Not a single one. It is a very unusual decision, and it is surprising that in theory it will exceed 2 exaflops only with this type of chips. Be that as it may, this is not the only thing we know. Lingshen will bring together 47,000 processors of Chinese origin that will be distributed in servers Huawei Kunpeng equipped with Taishan cores with ARM architecture. Lu Yutong has also confirmed that this machine will have 650PB of storage and a million-port interconnection. Everything that the Shenzhen National Supercomputing Center has announced sounds great, but this project also leaves us with some very reasonable doubts. The most obvious is that Lingshen is just a project at the moment. It has not yet been built, so its theoretical maximum performance comes from an estimate and not from a measurement provided by a real test bench. On the other hand, it is very surprising that the Shenzhen National Supercomputing Center has chosen to integrate only CPU. Huawei, Moore Threads and Cambricon Technologies are three of the chinese companies which have domestically made GPUs that could presumably fit into this machine. In any case, it is worth keeping track of this project to see if Lingshen finally lives up to the expectations it has raised. Image | TOP500.org More information | Shenzhen National Supercomputing Center In Xataka | The Frontier supercomputer is the second most powerful exascale machine on the planet. And it has a mission: nuclear fusion