A Dell PowerEdge M1000e blade chassis installed in a 42U rack with 40kW capacity.
July 8, 2011
Greetings,
Welcome to another installment of the Green Revolution Cooling Newsletter! This edition will cover high-performance cooling for GPU-based systems, support for fiber optics, and new additions to our website, www.grcooling.com.
GPU Computing: Enter Extreme Cooling
As of June 2011, three of the top five supercomputers on the Top-500 list feature GPU accelerators. It’s no surprise that the industry is quickly adopting GPU technology — the tremendous performance potential relative to cost offered by GPU systems is difficult to ignore.
But GPU-based servers can be difficult to cool effectively. As a point of reference, some GPUs run at 300 Watts (compared to ~80 W for a typical CPU) and require as much as twice the power per socket than CPUs. One common solution is to lower rack density in order to compensate for the increased cooling challenge. We believe that this fails to address the root of the problem: lack of cooling power.
Enter fluid submersion cooling. With the extreme cooling potential of the CarnotJet™ system, reliable and efficient GPU cooling has never been easier to achieve. Independent test data has shown GPUs submerged in our system are generally kept 20° C cooler than normal, even when installed in a 42U rack loaded ‘to the brim’ with similar servers.
Write us an email at info@grcooling.com to learn more about our state-of-the-art GPU cooling technology.
Fiber Optics: Favorable results
The initial, favorable results are in from fiber optic testing in the CarnotJet™ system. Independent tests conducted at Midas Networks compared in-air performance of Cisco optical switches with in-coolant performance, using UDP throughput performance tests and minimal interval ping floods.
The tests showed no degradation in transfer times for fiber optic switches submerged in our coolant. In all cases, no pings were lost. GreenDEF™ coolant appears to support fiber optic cable and switches, and we are excited about what this means for future applications.
The full fiber optics report is available upon request.
Website: New Media Added
Since the last newsletter, we have updated our website to include new pictures, videos, and case studies of our installations.
In our Gallery section, you will find pictures of our six current installations, as well as three new YouTube videos, one of which now has more than 35,000 hits!
We have also created a Downloads section, where you can find all of our case studies and materials in one convenient location.
Finally, you’ll see that we have overhauled our Product and Technology sections to provide more insight into GRC’s liquid submersion cooling technology.
Thanks for reading — the next few months will be very exciting for GRC, so stay tuned. And we always look forward to hearing from you, so send us a message at info@grcooling.com with any questions or comments.
Sincerely,
Green Revolution Cooling