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Computer With 512 GPUs Tests Google’s ‘Quantum Supremacy’ Claim

Google’s claimed to achieve the coveted quantum supremacy level of computing with its Sycamore system back in 2019. But the problem it used to make the claim has just been solved by today’s accelerator of choice — the GPU. As reported by Science, researchers in China have recently managed to solve the same computational problem that led Google to claim the title, despite being equipped with “just” 512 GPUs, which supercharged some smart changes to the original algorithm. The whole concept of quantum supremacy, however, refers to the moment when a quantum computer solves a problem that would be impossible for a classical computer to do.

At the time, Google said it would take the then-fastest supercomputer – the IBM-provided Summit – an unholy 10,000 years to solve the same computation that its Sycamore quantum computer crunched in 200 seconds. The Chinese team’s 512 GPUs took fifteen hours to do the same.

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