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发表于 2009/9/28 15:22:47

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标签: 天气预报 处理器 NOAA

令人羡慕的处理器:用于天气预报的NOAA

  If the processors and servers running your DCS or other plant networks seem a little sluggish from time to time, here’s something new you can drool over: The NOAA (National Oceanic and Atmospheric Administration), perhaps better known as the National Weather Service, has completed its nine year, $180 million project of upgrading its supercomputers used to run weather modeling.

  As the organization’s press release says, “The primary system, ‘Stratus,’ and its backup, ‘Cirrus,’ will allow NOAA to run more complex models in an effort to improve forecast accuracy and extend watch and warning lead times for severe weather, including hurricanes, tornadoes, air quality, wildfires, floods, tsunamis and winter storms.

  “The new supercomputers, based on IBM Power 575 Systems, are four times faster than the previous system, with the ability to make 69.7 trillion calculations per second. Higher computation speed allows meteorologists to rapidly refine and update severe weather forecasts as dangerous weather develops and threatens U.S. communities. Billions of bytes of weather observations are fed into the system each day, including temperature, wind, precipitation, atmospheric pressure, and other oceanographic and satellite information taken from the ground, air, sea, and space.”

  Maybe your DCS doesn’t handle billions of bytes, but if you start pondering the number of I/O points around your plant, whatever you have is probably pretty powerful in its own way. The most interesting statistic about the new NOAA system is that it is reckoned to be 34 times more powerful than the most powerful supercomputer in existence a decade ago. That might make you wonder how we managed to survive ‘way back in 1999 when our fastest calculations were only 0.0294 what they are now, but somehow we did. So perhaps somebody there can tell me if I’ll get wet tomorrow if I ride my bike to work.

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