The machine ranked fourth in the Top 500 with a sustained maximum performance of 1.2 Teraflops (A teraflop represents a trillion floating point operations per second) and second in the Green 500 with an energy-efficiency of 958 Megaflops per watt. It was the only computer to feature in the top five of both rankings.
With Tsubame 2.0 now built and online, the university has opened access to companies and organizations that wish to use some of its capacity. Computing time on the machine can be purchased via the university's website.
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