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codyb | 17 days ago

Wow, I'm staggered, thanks for sharing

I was under the impression that often times chip manufacture at the top of the lines failed to be manufactured perfectly to spec and those with say, a core that was a bit under spec or which were missing a core would be down clocked or whatever and sold as the next in line chip.

Is that not a thing anymore? Or would a chip like this maybe be so specialized that you'd use say a generation earners transistor width and thus have more certainty of a successful cast?

Or does a chip this size just naturally ebb around 900,000 cores and that's not always the exact count?

20kwh! Wow! 900,000 cores. 125 teraflops of compute. Very neat

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fulafel|16 days ago

Designing to tolerate the defects is well trodden territory. You just expect some rate of defects and have a way of disabling failing blocks.

DeathArrow|16 days ago

So you shoot for 10% more cores and disable failing cores?

graboy|16 days ago

IIRC, a lot of design went into making it so that you can disable parts of this chip selectively.