This is the best summary I could come up with:

Because according to the TOP500, China comes in at a distant 7th (with the Sunway TaihuLight supercomputer) and 10th place (Tianhe-2) - trillions of calculations per second away from the top-dog, the US-based (and AMD powered) Frontier exascale computer.

"They have not run the benchmarks, but [the community has] a general idea of their architectures and capabilities based on research papers published to describe the science coming out of those machines."

Frontier did end up winning the prize, and has in the meantime been upgraded, but time passes in the East exactly the same as it does in the West.

With the TOP500 being voluntary, politicized, and a hierarchical and competitive benchmark leave little room for misplays within the world's stage.

It's interesting how Dongarra's observation maps onto reality: China having the top supercomputer would definitely make the news.

Chinese companies being publicly bullish about recouping sanction-imposed losses in a year's time has to put at least a question mark over the effectiveness of them in the first place.

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