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Cell-based "Roadrunner" Tops Elusive Petaflop Mark

prunedude writes "The NY times is reporting that an American military supercomputer, assembled from components originally designed for video game machines, is more than twice as fast as the previous fastest supercomputer, the I.B.M. BlueGene/L. To put the performance of the machine in perspective, Thomas P. D'Agostino, the administrator of the National Nuclear Security Administration, said that if all six billion people on earth used hand calculators and performed calculations 24 hours a day and seven days a week, it would take them 46 years to do what the Roadrunner can in one day."

10 of 269 comments (clear)

  1. exaflop, zettaflop, the yottaflop and the xeraflop by anaesthetica · · Score: 3, Insightful
    Military taking the lead on computing as usual. Why is the military so much more progressive (with practical results) than any other institution of government?

    It will be used principally to solve classified military problems to ensure that the nation's stockpile of nuclear weapons will continue to work correctly as they age. The Roadrunner will simulate the behavior of the weapons in the first fraction of a second during an explosion. Before it is placed in a classified environment, it will also be used to explore scientific problems like climate change.
    So, it also has Cell-based processors AND Opterons. I wonder what the functional division between the two chip types is?

    "If Chevy wins the Daytona 500, they try to convince you the Chevy Malibu you're driving will benefit from this," said Steve Wallach, a supercomputer designer who is chief scientist of Convey Computer, a start-up firm based in Richardson, Tex. Those who work with weapons might not have much to offer the video gamers of the world, he suggested.

    Who cares? It's awesome sui generis.

  2. Re:Question by attemptedgoalie · · Score: 3, Insightful

    Lets say you have designed a nuclear weapon.

    Wouldn't it be really neat to run some tests before you build it?

    For instance, how cool would it be to have a simulation that could test a weapon being mishandled, or shot. At every single point from every possible angle at every possible velocity?

    It would be nice to know that there is a possibility of detonation if it were to drop off of a loading rack.

    --
    My mom says I'm cool.
  3. Re:exaflop, zettaflop, the yottaflop and the xeraf by Renraku · · Score: 4, Insightful

    The military is more progressive because there's not a whole lot they can do to advance things.

    They can hope for random breakthroughs, mostly based on chance/luck/etc..

    Or they can follow the natural progression of things. If you want to make things explode you have to know the nature of the explosion. And to know the nature of explosions you have to know all about high-energy physics at a molecular level. And to know about high-energy physics you have to know about how molecules and atoms interact. Now, with all of these things you can either make them yourself and study the real explosion, or you can simulate it and confirm with real-world results..which is what they're doing.

    They have the resources AND the desire to do so, and therefore, they are doing so. Private industries will rarely do things like this on their own. They're much more likely to wait for someone else to do the research, or research with grants and then patent the results for their own profit. Its the same reason NASA has spurred many developments and improvements in the rest of the civilian world.

    This setup will make it easier to study weather, physics, etc, etc. On the other hand, it'll also make it easier to figure out how to make bigger sticks that are lighter and sharper.

    --
    Job? I don't have time to get a job! Who will sit around and bitch about being broke and unemployed then?
  4. ummm... by WheresMyDingo · · Score: 5, Insightful
    if all six billion people on earth used hand calculators and performed calculations 24 hours a day and seven days a week, it would take them 46 years to do what the Roadrunner can in one day

    probably because most of those people would either try to eat the calculator or sell it for food and medicine

  5. Re:Question by ScrewMaster · · Score: 3, Insightful

    the only thing I can really think of is the air force doing the obvious shady things that it does.

    Uh ... what exactly do you mean by "shady things"? If you have a problem with what our armed forces are doing, you'd be better off leveling your charges at Congress. Ultimately, they're the ones that fund any "shady" things the military does.

    --
    The higher the technology, the sharper that two-edged sword.
  6. Re:exaflop, zettaflop, the yottaflop and the xeraf by anaesthetica · · Score: 4, Insightful

    Are you kidding?

    Not really. The post you link to describes the defense budget as it dwarfs other spending, but doesn't really argue why or why not that spending is progressive/regressive.

    The military was one of the first racially integrated public institutions in the U.S., it researched and funded the Internet, it's pouring money into synthetic fuels right now, and it's pushing the limits of computing power as seen in this article. There are numerous other scientific and social areas in which the military advances society, with far more practical results than do-gooders in other government or public institutions.

  7. Not in perspective by justinlee37 · · Score: 3, Insightful

    To put the performance of the machine in perspective, Thomas P. D'Agostino, the administrator of the National Nuclear Security Administration, said that if all six billion people on earth used hand calculators and performed calculations 24 hours a day and seven days a week, it would take them 46 years to do what the Roadrunner can in one day.

    That does not put the performance of the machine in perspective at all. Technical details would be much more accurate and effective.

  8. Re:exaflop, zettaflop, the yottaflop and the xeraf by blahplusplus · · Score: 5, Insightful

    "There are numerous other scientific and social areas in which the military advances society, with far more practical results than do-gooders in other government or public institutions."

    It's because the military doesn't have the scrutiny and oversight other institutions do, lets face it. Do public institutions besides the miilitary get secret prison's and liscense to do whatever the want? The military is not held back by moral qualms. We've seen this with all sorts of classified documents coming out of the government. The military has budgets that are kept secret. For anyone to claim the 'military helps us' vs public institutions, we'd have to do an analysis. But that would be fairly difficult and politically sensitive, now wouldn't it?

  9. Re:exaflop, zettaflop, the yottaflop and the xeraf by blahplusplus · · Score: 3, Insightful

    My point is they do not have the same barriers other institutions do: i.e. the gaps funding and scrutiny. My point about mentioning secret prisons was merely an example of the previous point.

  10. Re:Question by bpkiwi · · Score: 3, Insightful

    Yes, but it would only work if you made that funding available to everyone in the world, or else the data out of wherever it wasn't available would conflict with where the funding was available.

    In fact you could analyse such systemic bias by comparing data sets from varying geopolitical areas (say comparing Russian data to US data).