ClusterComputing
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Supercomputer built from Raspberry Pi and Lego, managed by humans rather than Minifigs
If you're a computational engineer, there's no question about what you do with the Raspberry Pi: you make a supercomputer cluster. Researchers at the University of Southampton have followed their instincts and built Iridis-Pi, a tiny 64-node cluster based on the Raspberry Pi's usual Debian Wheezy distribution and linked through Ethernet. While no one would mistake any one Raspberry Pi for a powerhouse, the sheer number of networked devices gives the design both some computing grunt and 1TB worth of storage in SD cards. Going so small also leads to some truly uncommon rackmounting -- team lead Simon Cox and his son James grouped the entire array in two towers of Lego, which likely makes it the most adorable compute cluster you'll ever see. There's instructions to help build your own Iridis-Pi at the source link, and the best part is that it won't require a university-level budget to run. Crafting the exact system you see here costs under £2,500 ($4,026), or less than a grown-up supercomputer's energy bill.
IBM cluster powers Murchison Widefield Array's radio telescope, answers mysteries of the universe faster than ever (video)
Radio telescope operators have as much of a problem coping with the avalanche of data as getting that information in the first place. The Victoria University of Wellington is all too aware and is leaning on IBM for a powerful (if very tongue-tying) iDataPlex dx360 M3 compute cluster to sift through the deluge at the upcoming Murchison Widefield Array. Combined, the 4,096 array antennas probing deep space and solar atmospherics will have the Xeon-based cluster tackling signal data to the tune of 8GB per second, and about 50TB per day -- that's a Nexus 7's worth of astronomy faster than you can sneeze, folks. A 10Gbps network connection will feed the results to Perth to save scientists a roughly 435-mile trek. Construction is still in mid-stride, but the $51 million Australian ($52.2 million US) being spent on the Murchison array may be worthwhile if it helps solve the riddles of star formation and solar flares.
48 PandaBoards chained together in solar-powered ARM cluster
Michael Larabel already had a 12-core PandaBoard-based mini-cluster under his belt. Clearly, the only way to outdo that is to go bigger, better and greener. The Phoronix founder took 48 of the OMAP 4460-powered boards, got them up and running on Ubuntu 12.04 and chained them together in a massive ARM cluster of Linux goodness. Even with 96 cores chugging along at 1.2GHz the cabinet of tiny computers used only 200 watts -- a threshold Larabel was able to meet with a solar panel strapped to a handtruck. Sadly we don't have any performance figures yet, but MIT, where the little ARM experiment was conducted, should be releasing benchmarks and video soon enough. In the meantime, hit up the source link for some more details and photos of this 96-core, solar-powered wonder.
