POSTER:computer news || IBM USES HEATED WATER TO COOL THE SUPERCOMPUTER
DATE:2012-06-20
About two years ago, IBM has commissioned a supercomputer Aquasar, its uniqueness on the use of heated up to 60 ° C water for CPU cooling  .  In the future, the water will be used for heating the building of the Institute.  At the time of the first implementation of this cooling system supercomputer could be considered experimental.
Obviously, the approach has proved very effective, and a similar solution has been used in the Leibniz Supercomputing Center (Leibniz Supercomputing Centre) is a commercial product. Â The supercomputer is based on servers SuperMUC iDataPlex Direct Water Cooled dx360 M4, which together total more than 150,000 processor cores (18 000 processors Intel Xeon), performance is measured by the value of three petaflops.
To cool the processors and memory modules in the system served water heated to 45 ° C. Â By estimates of the creators, this method of cooling requires 40% less energy, and during the cold season the heated water will be used to heat the building center, which ultimately will save about 1 million euros for public expenditure.
According to the new rating of the most powerful supercomputers in the world, Top500, SuperMUC complex is the most productive in Europe. Â Yesterday's world leader, the Japanese giant K Computer, gave first supercomputer Sequoia , also built by IBM.
Sequoia is deployed in the Lawrence Livermore National Laboratory (Lawrence Livermore National Laboratory) in the U.S. Â The complex is based on clusters of BlueGene / Q, which, in turn, are based on a 16-core processor Power BQC with a frequency of 1.6 GHz. Â The total number of cores is 1,572,864 pieces, and supercomputer performance in the test LinPak reaches 16.32 petaflops (20.1 petaflops at peak).
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