Biden urged to completely cripple AI chips to China
Some American lawmakers aren't happy with US efforts to limit exports of AI chips to China, and have called on the Biden administration to enact tighter controls.
In a letter to Commerce Secretary Gina Raimondo, House Representatives Mike Gallagher and Raja Krishnamoorthi , both of whom serve on a Select Committee on the Chinese Communist Party, on Friday existing trade restrictions were insufficient to prevent"clever engineering" to circumvent regulations.on Chinese chipmakers and barred the export of certain components that could be used to power artificial intelligence applications to China.
The rules barred suppliers from selling processors capable of greater than 600GB/sec of IO bandwidth to the Middle Kingdom. In order to distribute non-trivial workloads – such as training and running large language models – across multiple GPUs or accelerators, chips need to talk to one another over high-speed fabrics. Reducing the speed of these interconnects has a direct impact on overall performance, and is why China wants those high-bandwidth processors.
The rules effectively banned the sale of Nvidia, AMD, and Intel's top spec GPUs and accelerators in the Middle Kingdom. However, not long after the redtape went into effect, Nvidiaa cut-down version of its A100 GPU — a popular choice for AI training and inference workloads. This A800 halved the memory and cut the interconnect bandwidth to two thirds of the full-fat card.
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