June 2012

Some racks of the IBM Sequoia supercomputer

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The Sequoia supercomputer, which uses Linux as its operating system, is based on the Blue Gene/Q architecture, the latest version of the architecture developed by IBM exactly to build supercomputers. Sequoia uses Power BQC processors with 16 cores clocked at 1.6 GHz stacked in 96 racks. The total number of cores is 1,572,864 for a total computing capacity of 16,324.8 TeraFlops. It has 1,572,864 GBytes (nearly 1.6 PetaBytes) of memory.

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In China it was late afternoon when the Shenzhou 9 spacecraft took off using a modified Long March 2F carrier rocket, the most powerful rocket built by the Chinese. On board there are three astronauts, including the first Chinese woman, whose mission is to test manual docking to the Tiangong 1 module, which was put into orbit in September 2011.