China unveils a CPU-only supercomputer capable of 1.54 exaflops — LineShine LX2 packs a frankly ridiculous 2.4…

• Huawei-linked LineShine supercomputer crams 2.45 million Arm cores into one enormous AI cluster
• Huawei's processors power one of China’s largest AI computing installations today
• CPU-only supercomputers eliminate costly data transfers between processors and accelerators during workloads

China has deployed a massive CPU-only supercomputer called LineShine that delivers 1.54 exaflops of AI training performance without using any GPUs at all.

The system packs 20,480 compute nodes, each containing two LX2 processors for a total of 40,960 chips across the entire machine.

Each LX2 processor has 304 CPU cores, meaning the whole supercomputer uses roughly 2.45 million Armv9 cores in total.

Inside the LX2 processor's unusual architecture

The processor was developed by Huawei or through a joint design with China's National Supercomputing Center, though the exact origin remains undisclosed.

Each LX2 processor uses two compute chiplets with cores organized into eight clusters containing 38 cores per cluster.

Every core includes ARM's...

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