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China Supercomputing Hardware

Full Details Uncovered on Chinese Tianhe-2 Supercomputer 56

Posted by samzenpus
from the under-the-hood dept.
An anonymous reader writes "With help from a draft report (PDF) from Oak Ridge National Laboratory's Jack Dongarra, who also spearheads the process of verifying the top of the pack supercomputer, we get a detailed look at China's Tianhe-2 system. As noted previously, the system will be housed at the National Supercomputer Center in Guangzhou and has been aimed at providing an open platform for research and education and to provide a high performance computing service for southern China. From Jack's details: '... was sent results showing a run of HPL benchmark using 14,336 nodes, that run was made using 50 GB of the memory of each node and achieved 30.65 petaflops out of a theoretical peak of 49.19 petaflops, or an efficiency of 62.3% of theoretical peak performance taking a little over 5 hours to complete.The fastest result shown was using 90% of the machine. They are expecting to make improvements and increase the number of nodes used in the test.'"
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Full Details Uncovered on Chinese Tianhe-2 Supercomputer

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  • by Gothmolly (148874) on Monday June 03, 2013 @10:25AM (#43895853)

    Half an hour after you get the results, you have to run the simulation all over again.

    • The misguided notion that if you dont eat a large hunk of meat at most meals you neither nouroushing or filling yourself. Modern science says vegetarianism is at least as good as a carnivore diet.
      • by Anonymous Coward

        did you catch that news where a breast feeding vegan mother was sentenced to jail because her infant died due to malnutrition?

        • Re: (Score:2, Informative)

          by DragonTHC (208439)

          and how about the news where two vegan parents were sent to jail when their baby died from malnutrition because they just fed the poor infant plant matter.

          Babies need protein, lots of it. They need meat. Feeding a baby only soy protein or bean protein is child abuse. Humans are designed to eat and digest meat.
          A breast feeding mother needs to increase her protein intake. Even mountain and lowland gorillas, whose diet is entirely vegetarian, consume more protein than we do.

          So meat is not murder, without it,

          • by jovius (974690)

            It's true that humans are designed to eat and digest meat. It's also true that humans are not only carnivores, and if you carefully analyse the nutrients of edible stuff from animal to plants it's often the plant sources that are better choices.

            It's interesting to compare the nutritional content of a typical McDonald's meal and peanuts for example. Peanuts win in every way, with something like double the protein - and they cost less. Fish is also a great source of excellent nutrients. Of course the fast foo

          • by jandersen (462034)

            Babies need protein, lots of it. They need meat. Feeding a baby only soy protein or bean protein is child abuse. Humans are designed to eat and digest meat. A breast feeding mother needs to increase her protein intake. Even mountain and lowland gorillas, whose diet is entirely vegetarian, consume more protein than we do.

            Not exactly - babies need a balanced diet containing quite a lot more fat than an adult diet, and it is in fact possible to overfeed them with protein.

            I can't imagine where you get your ideas from. Humans are certainly not designed to eat meat - we are omnivores, and although we can eat meat, we also need plant material. People in the West, whether they are mothers or not, are already eating far too much meat, especially red meat, which is known to be a major factor in diseases like bowel cancer.

            I think you

      • by Anonymous Coward

        Modern science says vegetarianism is at least as good as a carnivore diet.

        Bull!

        (sorry couldn't resist)

  • by serviscope_minor (664417) on Monday June 03, 2013 @10:40AM (#43895967) Journal

    The machine uses a mixture of Xeons and Xeon Phi's communicating over PCIe, and the nodes seem to communicate over a home-grown chipset hanging off the PCIe bus. The efficiency number (65%) while not stellar is typical of such machines (i.e. about the same as Titan.

    It would seem therefore that the interconnect is competitive, or at least not restrictive. Given how close it is to Titan, I would not be surprised if the lack of efficiency comes from the relative pain of using fast co-processors which lack decent single threaded speed or memory.

    Anyway, it sll seems respectable enough, though I was hoping it would be a bit more interesting and use the Longsoon variant they've been trying to build a supercomputer out of.

  • Inquiring minds want to know.

    • by Cassini2 (956052)

      30.65 petaflops is about double the 17.6 petaflops of the current top performer on the TOP 500 list [top500.org].

      Of course, the devil will be in the details. It is easy to deliver high peak scores in supercomputing, and more difficult to hit high average scores. Also, the current list is from November, and it is possible that the American supercomputers are newer / faster / better too.

  • but... (Score:5, Funny)

    by slashmydots (2189826) on Monday June 03, 2013 @12:11PM (#43896835)
    ...can it run Crysis 3?
  • I'd laugh if the enclosures were made out of cheap, chrome-painted plastic like everything else made in China.

  • Except for a few very specialized applications like weather prediction and nuclear bomb simulations. This is a political "mine is bigger" statement by people that do not get it.

  • Oh lovely. More spam.
  • Tianhe stands for "cereal field", is that right? Anyone know why the name?
  • Given the pretty much proved intrusions by Chinese hackers into US and other systems, there may already be a Stuxnet team working to sabotage Tianhe.

HELP!!!! I'm being held prisoner in /usr/games/lib!

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