3 ms·
It's mandatory liquid cooling, so it's meant to be attached to a specialized liquid cooling loop that gets the heat outside the building. This is far beyond th
by walrus01 2mo ago
It's mandatory liquid cooling, so it's meant to be attached to a specialized liquid cooling loop that gets the heat outside the building.
This is far beyond the practical maximums of like 10 to 15kW per 44U cabinet front to rear air cooling for 'regular' rackmount server stuff.
- ttul 2mo agoIndeed. You need 45 to 60 liters per second of cooling water flowing over a Cerebras wafer every minute to keep it under 90C. And that’s assuming the water leaves at 90C… More realistically, you need much more cooling water.
- 0xbadcafebee 2mo agoCS-3 used 100 liters of water with a cold plate (https://www.brownstoneresearch.com/bleeding-edge/ai-infrastructure-investment-continues-to-increase/ https://www.brownstoneresearch.com/bleeding-edge/ai-infrastr...). But you can also use refrigerants with a cold plate (https://eng.umd.edu/engineering-ai-public-good/cooling-data-centers-safer-two-phase-fluids https://eng.umd.edu/engineering-ai-public-good/cooling-data-...) or dielectric fluid in total immersion. Until they find a more power-efficient design, my guess is total immersion will come back in style.