IBM has announced that its IBM Blue Gene/L supercomputer has surpassed NEC's Earth Simulator in Japan to become the world's most powerful supercomputer. Using the industry-standard LINPACK benchmark, the IBM Blue Gene/L system attained a sustained performance of 36.01 teraflops, eclipsing the three year old top mark of 35.86 teraflops for the Japanese Earth Simulator in Yokohama, Japan. The milestone was attained during internal testing at IBM's production facility in Rochester, Minnesota.