Any idea on what’s the yield on these chips?
4T transistors, one giant chip (Cerebras WSE-3) [video]
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Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#72related discussion (2021): https://news.ycombinator.com/item?id=27459466
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#73So it's increased from 2.6 to 4 trillion transistors over the previous version.
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#74The missing numbers that I really want to see-
* Power Usage
* Rack Size (last one I played with was 17u)
* Cooling requirements
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#75Any idea on what’s the yield on these chips?
Previous versions have had basically 100% yield, because when you're working with the whole wafer it's pretty easy to squeeze in enough redundancy to route around defects unless you get a really unlucky cluster of defects.
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#76I'm surprised we haven't seen wafer scale many-core CPUs for cloud data centers yet.
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#77[deleted]
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#78Reposting the CS-2 teardown in case anyone missed it. The thermal and electrical engineering is absolutely nuts: https://vimeo.com/853557623 https://web.archive.org/web/20230812020202/https://www.youtu... (Vimeo/Archive because the original video was taken down from YouTube)
20,000 amps 200,000 electrical contacts 850,000 cores and that's the "old" one. wow.
And even mundane details are so difficult... thermal expansion, the sheer number of pins that have to line up. This thing is a marvel.
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#79Hm, let's wait and see what the gemm/W perf is, and how many programmer hours it takes to implement say an mlp. Wafer scale data flow may not be a solved problem?
Re: 4T transistors, one giant chip (Cerebras WSE-3) [video]
#80Wow - it as bigger than my kitchen tiles - who uses them ???.
NSA ???.