The heat generated by a washing-machine-sized data centre is being used to heat a Devon public swimming pool

30 degrees is not far off for a normal leisure pool. Pools for serious competitions and training tend to be a bit cooler.
 
I hate articles like this & on the basis of the lack of detail, would agree that it is more likely to be misleading than not.
Just tell us 1) the power consumption of this washing machine sized magic box of computers (& associated running costs) & 2) the heat output
 
A datacenter makes a LOT of heat. Try going in to even a small one after the AC fails.

A large volume of water holds heat for a
long time. It might take days to get up to temp but it should hold it once there. As long as it's indoors.

It can certainly get toasty, just having a look at one of our servers which runs pretty much under load 24/7, the inlet ambient temperature is a cool 16C which is the A/V supplying to a contained zone in front of the server. The hottest point at the back is 64C, so that's quite a jump in temperature across probably about meter and a bit gap.

There's a company offering home solutions based on a similar concept, basically you host a server at home which has been designed to attach to your hot water cylinder and give you free hot water, I meant to look at the maths a while back but never got around it it so I've no idea how feasible it it, certainly not for me anyway, don't think they'd appreciate my dire upload speeds lmao.



It's a nice idea, but realistically I'd bet it would be cheaper to have an optimum cooling solution for an entire data center as opposed to relying on individual servers or racks being used to heat other places.
 
Is something the size of a washing machine really a data centre? It's just a small cabinet isn't it? It's like calling a toy boat the navy.
 
I hate articles like this & on the basis of the lack of detail, would agree that it is more likely to be misleading than not.
Just tell us 1) the power consumption of this washing machine sized magic box of computers (& associated running costs) & 2) the heat output

comprehensive article
Deep Green's site has branding from Dell, Nvidia, and US immersion cooling specialist GRC but apparently builds its own tanks, which could reach a capacity of 40kW, the company said. Craggs told DCD by email: "We have been working with our own tubs at the moment but are in conversations with GRC and Submer about utilizing their kit for future installations."

The tubs contain AMD Epyc single CPU servers from Dell, each configured with four A100 80Gb PCIe GPUs and 4TB of SSD, Craggs said. The servers are installed on an "open chassis, to ensure the most efficient heat transfer."

Overall, the HPC cluster at Exmouth has 12 four-CPU cards, CEO Bjornsgaard told DCD online. The servers are being used for AI training and machine learning workloads at the moment but could be configured for cloud services and video rendering in the future.

"At this early stage, we're renting the compute bare metal to AI/machine learning people through the aggregators," said Bjornsgaard, adding that the company is hopeful that media coverage of the story will attract direct compute customers in the future.

The Exmouth Leisure Centre has a 25m swimming pool as well as a children's pool which needs around 222,000 kWh per year to heat. "Our expected heat transfer from the kit is 139,284 kWh a year, equivalent to 62 percent of the pool’s heat needs," said Craggs. There is room in the compute tub for extra servers that could extend this to 70 or 80 percent of the pool's heating needs.

which seems conistant with power from

would be interesting to see the coolant flow rate.
 
Why don't these new servers use a different more energy and heat efficient setup? The modern laptops don't have fans in them anymore and they last longer on the battery due to (I'm assuming) cpu architecture. Why don't servers use these low power systems?
 
Why don't these new servers use a different more energy and heat efficient setup? The modern laptops don't have fans in them anymore and they last longer on the battery due to (I'm assuming) cpu architecture. Why don't servers use these low power systems?
Because they are slow compared to their desktop counterparts and would offer less performance per area or computing space.
 
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Why don't these new servers use a different more energy and heat efficient setup? The modern laptops don't have fans in them anymore and they last longer on the battery due to (I'm assuming) cpu architecture. Why don't servers use these low power systems?
Because they're completely different uses:)

Even if you used laptop CPU's in a server you'd run into cooling issues because your average laptop is not designed to run at full CPU load for long periods of time, a server is.
Servers also pack a lot of performance in a much tighter space, your laptop might get away with passive cooling because it's designed so that a large part of it's surface area is effective a heatsink for it, hence why they'll get warm/hot if you sit them on your lap, a server is trying to pack potentially several high performance CPU's in the same sort of volume..

Basically a server for it's performance can actually be much more efficient per watt of power it uses (and thus heat output), but it's also producing that heat in a much smaller volume of space because for servers the space taken up is more important than passive cooling.
IIRC they've tried all sorts of things to make more efficient servers. to the point where a lot of the really big companies design their own specialised ones for their specific uses to maximise performance*, but they'll still produce a lot of heat as they're not really concerned with reducing the heat output, just improving the performance they get for it.
Even the likes of Nvidia do specialist versions of their GPU's for things like server farms doing pure maths or rendering, let alone as another example all those crypto mining rugs that used processors that were extremely optimized for one crypto coin or another.



*IIRC Facebook, MS, Google etc all design their own custom chips and motherboards for specific jobs if they can't find an off the shelf unit to do the job and they think they'll need enough (the same way all the consoles use customised versions of CPU's and GPU's and remove any "legacy" or unnecessary parts of the chips that might be there by default to allow software to run that you're not going to have on that console).
 
Why don't these new servers use a different more energy and heat efficient setup? The modern laptops don't have fans in them anymore and they last longer on the battery due to (I'm assuming) cpu architecture. Why don't servers use these low power systems?

That's like saying HGV's are too big for a city centre so lets deliver everything to supermarkets with a fleet of Nissan Leafs
 
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