IBM spearheads novel heating design, develops and tests it with the LRZ — a German supercomputing center
International Business Machines, Inc. (IBM) is in hot water with its latest supercomputer design, and that’s a good thing. The company announced this week the availability of the world’s first hot water commercial supercomputer.
I. Building a Better Cooled Supercomputer
Dubbed LRZ “SuperMUC”, the system is composed of IBM System x iDataPlex Direct Water Cooled dx360 M4 servers. It can pack up to 150,000 cores (in 18,000 Intel Corp. (INTC) Xeon processors) for up to 3 petaflops of execution at a time. Describes IBM:
At the same time, by ditching traditional air cooling for a liquid coolant power costs to be cut by up to 40 percent over a traditional air design. The water is heated to a hotter than normal temperature via special microchannels in the cooling blocks, hence the “hot water” name. The heated fluid gets up to a toasty 113 degrees Fahrenheit, or 45 degrees Celsius, cutting the power consumed by cooling to around a fifth of the levels used in traditional designs.
Of course many tech giants like Facebook, Inc. (FB) and Google Inc. (GOOG) use liquid-cooling at their data centers, but even this somewhat more efficient technology is reportedly inferior to the new hot-water cooling system in power efficiency.
The system is also more compact than traditional air or liquid cooled designs, which require bulkier blowers, piping, and/or heat transfer systems.
II. Trial Deployment in Germany Shows Superb Results
Even greater savings can be realized by repurposing the waste heat from the supercomputer to heat on-site research institutions in the winter. This approach was tested at the Leibniz Supercomputing Centre (Leibniz-Rechenzentrum — LRZ) in Garching near Munich, Germany.
The LRZ, who helped develop the commercial supercomputer technology, not only was able to realize 40 percent power savings, allowing it to fulfill the German government’s power efficiency mandates for research institutions, it also saved $1.25M USD on heating costs at the LRZ, via the attached waste-heat recycling system.
Dr. Bruno Michel, manager, Advanced Thermal Packaging, IBM Research cheers, “As we continue to deliver on our long-term vision of a zero emission data center we may eventually achieve a million fold reduction in the size of SuperMUC, so that it can be reduced to the size of a desktop computer with a much higher efficiency than today.”
The LRZ saves money by using waste heat from the hot-water cooling system to heat workspaces during the winter. [Image Source: Steve Lionel/Flickr]
Completed in July 2012, the new LRZ supercomputer is the most powerful one in Europe, and is a member of the Partnership for Advanced Computing in Europe(PRACE). IBM describes its work, writing:
Munich and nearby German cities deeply rely on the Centre’s computing resources for their studies. Now they’ll be able to do it more affordably, and set an example via a prototype of a design that will likely pop up elsewhere around the world before long, courtesy of IBM.