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Huawei-linked LineShine supercomputer crams 2.45 million Arm cores into one enormous AI cluster.
China's LineShine supercomputer achieves 1.54 exaflops AI training using only CPUs, not GPUs.
KEY POINTS
- The cluster contains 2.45 million Armv9 cores across 20,480 nodes with Huawei-linked LX2 processors.
- Each LX2 processor integrates 32GB HBM and up to 256GB DDR5, providing very high memory bandwidth.
- LineShine's CPU-only design avoids CPU-GPU data transfer bottlenecks but sacrifices AI power efficiency.
- China's shift to CPU-only AI systems is driven largely by US GPU export bans, not technical advantage.
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