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French Company Plans To Heat Homes, Offices With AMD Ryzen Pro Processors

At its Ryzen Pro event in New York City last month, AMD invited a French company called Qarnot to discuss how they're using Ryzen Pro processors to heat homes and offices for free. The company uses the Q.rad -- a heater that embeds three CPUs as a heat source -- to accomplish this feat. "We reuse the heat they generate to heat homes and offices for free," the company says in a blog post. "Q.rad is connected to the internet and receives in real time workloads from our in-house computing platform."

The idea is that anyone in the world can send heavy workloads over the cloud to a Q.rad and have it render the task and heat a person's home in the process. The two industries that are targeted by Qarnot include movies studios for 3D rendering and VFX, and banks for risk analysis. Qarnot is opting in for Ryzen Pro processors over Intel i7 processors due to the performance gain and heat output. According to Qarnot, they "saw a performance gain of 30-45% compared to the Intel i7." They also report that the Ryzen Pro is "producing the same heat as the equivalent Intel CPUs" they were using -- all while providing twice as many cores.

While it's neat to see a company convert what would otherwise be wasted heat into a useful asset that heats a person's home, it does raise some questions about the security and profitability of their business model. By using Ryzen Pro's processors, OS independent memory encryption is enabled to provide additional security layers to Qarnot's heaters. However, Q.rads are naturally still going to be physically unsecured as they can be in anyone's house.

Further reading: The Mac Observer, TechRepublic

24 of 181 comments (clear)

  1. Re:physical access by Anonymous Coward · · Score: 2, Informative

    the 'heaters' function as compute farms, i'm sure the processors are running at 100% whenever the unit is on (they are thermostatically controlled, btw).

    they pay back the electricity used, so it's a win-win for all involved.

    too bad they don't deal with ordinary households (minimum deployment is 20 units), i'd take like four of them (and they would run non-stop 7-8 months out of the year here).

  2. Re:Electricity bill? by Anonymous Coward · · Score: 3, Informative

    From their website: "The Q.rad produces heat by computation, the electricity consumption is measured by an embedded counter and related expenses are automatically refunded to the host."

  3. What do they do during the summer? by Entrope · · Score: 4, Insightful

    I know the French take a vacation in August, but it seems like you wouldn't want a space heater running during any of the summer. Even if you have air conditioning, you'd have to pay more to pump the generated great out of your home.

    1. Re:What do they do during the summer? by Gaygirlie · · Score: 2

      That's what I was thinking. It's not like they can just turn the machines off during summer-times, their whole cloud-computing platform would be basically rendered useless during summer if they did. They could turn the machines off during business-hours, but again, that'd bring the platform's uptime down drastically, and it wouldn't solve the heating-problem at all, as it takes a long time for big buildings to cool down.

      I don't see how this would make much sense in an office-building, but I suppose it could be somewhat useful for storage-spaces, where it doesn't matter if it gets a little toasty during summers, but you don't want temperatures to drop below, say, +10C during winters.

    2. Re:What do they do during the summer? by Anonymous Coward · · Score: 2, Informative

      I know the French take a vacation in August, but it seems like you wouldn't want a space heater running during any of the summer. Even if you have air conditioning, you'd have to pay more to pump the generated great out of your home.

      What happens in summer? What happens when there are no computation tasks to run?

      The processors of the Q.rads are regulated to meet the target temperature defined by the end-user. The computing power is naturally impacted by seasonality. By using processors low power modes and by choosing adapted deployment sites, Qarnot manages to keep a minimum computing capacity all year long. To compute all-year round when computing demand is higher than the deployed capacity, Qarnot also starts to have partnerships with green data centers and to develop other products for sites that need heat all year long (water, industry/agriculture).

      Qarnot computing is setting up partnerships with private and public research centers and labs which regularly launch computation campaigns that can last up to several years. Such campaigns include BOINC and many other academic projects. Thus, Q.rads will always have a background buffer of useful computations to process to produce heat when inhabitants need heating.

    3. Re:What do they do during the summer? by drinkypoo · · Score: 2

      The clever thing to do would be to operate in multiple countries, such that you could ship the workload around the world. That only works for customers who can afford the latency, but if you're selling both compute time and heating, you might be able to lower your prices such that it becomes attractive to enough people to make it profitable.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:What do they do during the summer? by judoguy · · Score: 3, Interesting
      All residential buildings have need for domestic water heating all year long.

      This particular scheme might turn out not to be practical but the basic idea is great.

      Rather than paying gobs of money to waste heat from a server farm, use it to heat something you need to heat anyway.

      I bet we've all seen the situation at work where the company is heating the building with a conventional HVAC system and at the same time refrigerating the server room. This can be difficult to fix after construction, but should grow more common in the design phase as time goes by.

      --
      Peace is easy to achieve, just surrender. Liberty is much harder get/keep.
  4. Why use 12 cents of nichrome wire by OrangeTide · · Score: 3, Funny

    When you can use $600 of silicon to do the job?

    --
    “Common sense is not so common.” — Voltaire
  5. Re:District Heating Systems by egladil · · Score: 4, Informative

    Using data centers to feed the district heating system is already on its way here in Sweden: Bahnhofs Datacenter Pionen an Open District Heating Pilot

  6. Re:physical access by The123king · · Score: 2

    Yeh, lets chuck a bunch of $500 processors into a bucket of water! What's the worst that can happen?!?!

    --
    If you gave me a choice between a printer and a giraffe with explosive diarrhoea, i'll get my ladder and my raincoat
  7. Are they a startup? by excelsior_gr · · Score: 3, Insightful

    Because this business model is not well though-of. Internet informs me that AMD Ryzen 7 PRO 1700X consumes 95 W of power, much like an old-school light-bulb. Crappy oil radiators seem to start at 600 W (about 6 CPUs) and better ones have a power consumption of up to 2500 W (26 CPUs). Having used such radiators myself, I would definitely go with the bigger one. Other points of interest are the surface area, the surface temperature and the heat transfer mechanism that are different between a 2500 W oil radiator and a 26 CPU rack. Even if the CPUs reach a rather elevated temperature (1700X maxes out at 95 C), the surface temperature of the rack is only going to be luke warm, so you're not going to get any heat radiated to you. The heat is going to reach you by convection via the fans, which is a crappy way to warm yourself up. Then you would need a full rack at least in every other room to heat up a whole home, which will take up a lot of space.

    If you're going to run a data center, the only thing this will save is the real-estate space. The costs of installation, transportation etc, however, are going to eat away most of the savings in my opinion. I suppose, of course, that Qarnot will be paying for the electricity. If not, then they are just looking for chumps that would be better off switching back to incadescent light bulbs.

    1. Re:Are they a startup? by fgouget · · Score: 2

      And also the noise, imagine a rack of servers at full load, it will not generate that much heat, but it will sound like a jet engine.

      From their FAQ: Q.rads are totally silent since there are no mobile parts inside the Q.rad (no ventilators, no hard drives).

      I guess they wouldn't have the costs of a datacenter, but also wouldn't have the benefits, like fast network, someone nearby to solve any issues (imagine a server shutsdown in the middle of the night,

      See above: no moving part. This greatly improves reliability. Plus, still from their FAQ: In addition, Q.rads computing nodes are stateless without any storage.. Finally this is distributed computing, no server is critical. If one device dies down, then just direct the workload to any other.

      Besides that, using resistive heating is terribly energy inefficient, a heat pump is much more economical.

      Datacenters need lots of cooling and lots of infrastructure for redundancy. Here redundancy is provided by geographical distribution: if a town block loses power then that only impacts a small part of the computing capacity. Same for Internet connectivity. And cooling is not needed. Finally the buildings these devices are heating would have needed heating anyway. So when you compare the two, on one side you need to add the energy needed for the computing, cooling and providing redundancy to the datacenter, and heating the buildings that would have been Qarnot customers; and on the other side, just heating Qarnot customers. I'll concede to some hidden costs: Qarnot still needs some central servers to distribute the work (but that's not much) and it increases Internet traffic which is not as energy efficient as just distributing data inside a datacenter.

      And while I like heat pumps they are not very popular in France and do have drawbacks like a lot of noise and questionable power output depending on climate.

    2. Re:Are they a startup? by fgouget · · Score: 3, Informative

      Because this business model is not well though-of. Internet informs me that AMD Ryzen 7 PRO 1700X consumes 95 W of power, much like an old-school light-bulb.

      95W to which you add power consumption for the motherboard chipset, RAM, network card, and power supply. Qarnot has been on the market for two years already so I'm pretty sure they know what they are doing by now.

      Crappy oil radiators seem to start at 600 W (about 6 CPUs) and better ones have a power consumption of up to 2500 W (26 CPUs).

      Bigger = better. Are you American? A 2600W heater is not any better if what you need is a 500W one. Also one big 2600W heater is not better than two 1300W ones as it concentrates all the heat in one place causing uneven heating. Finally they are mostly targeting new building that, by law, have to follow low-energy standards and thus need much less heating.

      Even if the CPUs reach a rather elevated temperature (1700X maxes out at 95 C), the surface temperature of the rack is only going to be luke warm, so you're not going to get any heat radiated to you.

      Wow! You don't know anything about heating, do you?

      High temperature heaters are really out of fashion because they cause lots of convection, moving the dust around, and because all the heat to go to the ceiling leaving the reat of the room, where you are, cold, thus increasing heating costs.

      So nowadays most everyone buys low temperature heaters that provide a mix of convection and heating via infrared radiation (with its ultimate form being underfloor heating). They provide a much more even heating which lets you turn the thermostat down and thus save on power.

      The heat is going to reach you by convection via the fans, which is a crappy way to warm yourself up.

      From the Qarnot FAQ: Q.rads are totally silent since there are no mobile parts inside the Q.rad (no ventilators, no hard drives).

      The costs of installation, transportation etc, however, are going to eat away most of the savings in my opinion.

      That's probably why they don't target individual houses. Again from their FAQ: For now, we only install Q.rads in buildings for a minimum of 20 units !

      I suppose, of course, that Qarnot will be paying for the electricity.

      Still from their FAQ: Qarnot computing sells the computing power of the Q.rads to companies and research centers. The selling of these services pays for the electricity used by the Q.rads and therefore the heating that is produced. Each Q.rad continuously records its energetic (kW/h) and computing (CPU.h) consumption which enables Qarnot to bill its computing clients and refund the electricity consumed.

    3. Re:Are they a startup? by Solandri · · Score: 2

      Crappy oil radiators seem to start at 600 W (about 6 CPUs) and better ones have a power consumption of up to 2500 W (26 CPUs).

      Space heaters don't run constantly. They heat up until they (or the room) hits a certain temperature, then shut off. So a typically 1500 W heater (designed not to trip a circuit breaker providing 15A 11V = 1650 W in the U.S.). This electric company estimates a 1500 W heater will use 274 kWh in a month. 1 month is 730 hours, so that's just 375 W of consumption on average. In other words, they estimate it'll be turned on 25% of the time.

      So a 95 Watt CPU (125 Watt system) = 500 Watt heater. Just 3 of them will equal a typical 1500 W space heater.

      Even if the CPUs reach a rather elevated temperature (1700X maxes out at 95 C), the surface temperature of the rack is only going to be luke warm, so you're not going to get any heat radiated to you. The heat is going to reach you by convection via the fans, which is a crappy way to warm yourself up.

      Heat is heat. It's the entropic end-state of energy, so the form of heating doesn't really matter. 100 W of heating is 100 W of heating.

      Radiant heat feels better because it triggers the temperature sensing nerves in your skin, but it doesn't really warm you up any more than a convection heater. If you rely on a small radiant heater, you're gonna have to put on a sweater or wrap a blanket around yourself. Because your air temp is going to be a heckuva lot colder than a larger convection (air) heater, and you'll need the insulation to slow down the rate at which your body is losing heat to the air.

      The bigger problem with this idea is the relative thermal inefficiency of generating heat from electricity. See, although an electric heater is 100% efficient at converting electricity into heat, its energy source is not. With a localized heating source (oil or gas heat), the process of burning the fuel converts almost 100% of its energy into heat (a little is "lost" as light or vented to the atmosphere to remove exhaust gases). The same is true when generating electricity, except the heat is generated at the plant, not in your house. So if the power generation plant's efficiency is 40% (typical coal plant), then 60% of the energy in the coal becomes waste heat at the plant, and only 40% of the energy becomes electricity to heat your house.

      This is why a gas or oil or even a wood heater in your home is preferable to electric heat. And why power plants in cold climates often have co-generation plants which use that waste heat to send steam through pipes for industrial heating. Of course, this is France, which gets about 3/4 of its electricity from nuclear. So they probably don't care about efficiency, just cost.

  8. What a terrible idea. by cheesybagel · · Score: 2

    I know electricity is cheap in France because of nuclear power and all. But this is still a terrible idea. Resistive heating (which is what this is) is terribly inefficient compared with a heat pump like an air conditioner (which can in fact heat besides cool down buildings when run in reverse). It can use like 2-3x as much power to heat a building by the same amount.

  9. Re:Advanced Melting Devices by ledow · · Score: 3, Informative

    Call it 100W per processor.

    You'd need a 20-processor board to match a small conventional mini-heater which would barely heat one room in the winter.

    Though the heat should be used, I'm not sure that using it for direct home heating is really worthwhile. Sure, a datacenter pushing out hundreds of thousands of watts of generated heat is probably able to help heat the swimming-pool in a leisure complex next door (to mutual benefit), I'm not sure it really stands up as a solution once distance of any kind is involved.

    I could fill the basement of a tower block with rack servers, but it probably wouldn't be enough to heat even the first few floors or so of residential apartments. And for most of the year, and in fact most of the time it's running even in winter, it would be venting that stuff to the outside air or dialling back the power rather than have the systems overheat.

  10. Re:Electricity bill? by skids · · Score: 4, Insightful

    Reliability: they get a physically distributed compute network that is diverse across geography, utility, and ISP, with next to no telcom hotel costs. Possibly also some renewable/cogen energy credits of whatever form they take in the host country.

    (As to the comment below, given what they are using them for, the bandwidth requirements are likely rather small... they transfer chunks of input data and then munch on them for a good long while.)

    I wonder what they have for local storage. ISTR from my BOINC days that most applications wanted a hefty storage area so their job servers didn't have to be arsed to talk to the nodes more than once a day or so. Also best to do due diligence and ask them to verify no wifi adaptors in there... they probably aren't pricks surrepticiously trying to build an access network, but these days companies really need to be forced to promise that in writing/website just in case.

    Most critical thing I learned from my BOINC days though: find out how much noise these things make. If they are purely radiant, kudos to this company.

  11. Re:Electricity bill? by skids · · Score: 2

    By the way, called it.

    (I guess I might be to blame for the WiFi. Oh well. Nothing terms of service, SLAs, and a firewall policy can't fix.)

  12. How to heat a house with a multi-line BBS by aheath · · Score: 4, Interesting

    I used to be the sysop [ system operator ] of a BBS [ bulletin system ] back in the day [ mid eighties to early nineties ]. I met a sysop who ran a multi-line PCBoard system from the basement of his house in a Ohio. PCBoard required one CPU for two phone lines. I don't remember how many lines he had but it was an impressive number. He told me that he had enough desktop PCs in his basement to heat his house in the winter. He also had enough paid subscribers to pay for the cost of cooling his basement in the summer.

  13. Been done already - Dutch Start-up "Nerdalize" by alanxyzzy · · Score: 2
    1. Re:Been done already - Dutch Start-up "Nerdalize" by alanxyzzy · · Score: 2

      There's even an old Slashdot article

  14. Re:Advanced Melting Devices by fgouget · · Score: 2

    Call it 100W per processor.

    You'd need a 20-processor board to match a small conventional mini-heater which would barely heat one room in the winter.

    They are mostly targeting new building that, by law, have to follow low-energy standards and thus need much less heating.

    Though the heat should be used, I'm not sure that using it for direct home heating is really worthwhile.

    Datacenters need lots of cooling and lots of infrastructure for redundancy. Here redundancy is provided by geographical distribution: if a town block loses power then that only impacts a small part of the computing capacity. Same for Internet connectivity. And cooling is not needed. Finally the buildings these devices are heating would have needed heating anyway. So when you compare the two, on one side you need to add the energy needed for the computing, cooling and providing redundancy to the datacenter, and heating the buildings that would have been Qarnot customers; and on the other side, just heating Qarnot customers. So that gives the Qarnot system a good edge from an energy consumption standpoint (which is a significant part of the costs for a datacenter). I'll concede to some hidden costs if you look at it more globally: Qarnot still needs some central servers to distribute the work (but that's not much) and it increases Internet traffic which is not as energy efficient as just distributing data inside a datacenter.

  15. Called it in 2010, dumb heaters will be illegal: by robi5 · · Score: 2

    https://tech.slashdot.org/comm...

    The current practice of directly moving lowest entropy, precious energy to the highest entropy state - heat - will be considered immoral and eventually illegal. You won't be able to buy an electrical air or water heating system without that including compute units. Why heat with a dumb resistor when you can do it equally well with a CPU/GPU which does valuable computation, for which someone else would otherwise use up an equal amount of energy.

  16. Re:Electricity bill? by careysub · · Score: 2

    Nonsense of course. They would write off processors that go down and drop them from their system. Periodically they may change out whole modules is most of them fail.

    --
    Starships were meant to fly, Hands up and touch the sky - Nicky Minaj