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| News |
| Awards & Honors |
| ASCR-Funded Computers Take Top Medals at SC09 HPC Challenge |
| The Oak Ridge Leadership Computing Facility (OLCF) Cray XT5 “Jaguar” took three gold medals and a bronze at the SC09 HPC Challenge. The IBM Blue Gene systems at Lawrence Livermore National Laboratory (LLNL) and Argonne Leadership Computing Facility (ALCF) won a gold, a silver, and a bronze. |
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| SC09 |
| Figure 3. The annual SC is the international conference for high-performance computing, networking, storage, and analysis. |
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| Jaguar won first place for speed in solving a dense matrix of linear algebra equations by running the HPL software code at 1,533 trillion floating point operations per second (teraflop/s). Kraken, the world’s fastest academic computer, took second by running HPL at 736 teraflop/s. |
| Jaguar also ranked first for sustainable memory bandwidth by running the STREAM code at 398 terabytes per second. STREAM measures how fast a node can fetch and store information. |
| Jaguar’s third gold was for executing the Fast Fourier Transformation (FFT), a common algorithm used in many scientific applications, at 11 teraflop/s. Kraken took second with a speed of 8 teraflop/s. |
| Edged out by IBM Blue Gene machines at Lawrence Livermore and Argonne national laboratories, Jaguar took third place for running the RandomAccess measure of the rate of integer updates to random locations in a large global memory array. |
The Blue Gene/L machine at LLNL took third in HPL and second in STREAM competitions, and the Japan Agency for Marine–Earth Science and Technology placed third in both STREAM and FFT contests.
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