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    Los Alamos Computer Fastest Ever

    Written by

    Chris Preimesberger
    Published June 9, 2008
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      Scientists at the Los Alamos National Laboratory in New Mexico have built and tested a new computer cluster called the IBM Roadrunner that is the first to achieve a petaflop of sustained performance, the U.S. Department of Energy said June 9.

      “Flop” is an acronym meaning floating-point operations, or mathematical calculations, per second. One petaflop is equal to 1,000 trillion calculations per second.
      Roadrunner will be used by the Department of Energy’s National Nuclear Security Administration to perform calculations that improve the ability to certify that the U.S. nuclear weapons stockpile is reliable without conducting underground nuclear tests, the department said in a statement.
      The United States ceased underground nuclear testing following a worldwide nuclear test ban treaty in 1963. The Roadrunner can provide a multi-scale simulation of the performance of a nuclear weapon, Tom D’Agostina of the Department of Energy told a teleconference audience of reporters.
      The new supercomputer also will be used for financial, health science and biofuel research projects, D’Agostina said. U.S. Energy Secretary Samuel Bodman told the Associated Press that the Roadrunner also will be used to help solve global energy problems and will “open new windows of knowledge” in basic research.

      From Game System to Super Computer

      “We kiddingly refer to this as a ‘suped-up PlayStation 3,’ ” D’Agostina said. “That’s because it’s a hybrid computer, made of up different kinds of processors. But one of the key components is the Cell chip, which was originally designed for high-performance video game use.”
      “The Roadrunner was able to sustain petaflop performance during both the Linpack universal benchmark and during a real application usage on May 25 in Poughkeepsie, N.Y.,” said Dave Turek, vice-president of supercomputing at IBM, which supplied the cluster software and hardware for the project. “No other computer has ever done that.”
      The Roadrunner’s performance worked out to more than 10 times the speed of the next-fastest computer (the IBM BlueGene at Lawrence Livermore Laboratory in California). Plus, it recorded this performance using only about half the power of the next-fastest machine, Turek said.
      “Roadrunner will not only play a key role in maintaining the U.S. nuclear deterrent, it will also contribute to solving our global energy challenges, and open new windows of knowledge in the basic scientific research fields,” the department said in a statement.
      “To put this into perspective, if each of the 6 billion people on earth had a hand calculator and worked together on a calculation 24 hours per day, 365 days a year, it would take 46 years to do what Roadrunner would do in one day,” the department said.
      The Roadrunner’s multicore Cell chips could eventually revolutionize the IT industry with their high clock speeds. The Cell, in R&D since 2001, was developed by a consortium of IBM, Sony and Toshiba.
      The new chip integrates 234 million transistors and is fabricated with 65-nanometer SOI technology. The Cell’s multi-core architecture and ultra high-speed communications capabilities enable a vastly improved real-time performance — often 10 times the speed of the newest PC processors, as was demonstrated in the Los Alamos project.
      The Cell makes up for its simpler Power core by including eight “synergistic processing units” that can work on different tasks in parallel. These multiple cores help the processor run at high clock rates.
      The computer will soon take its place among the fastest computers in the world — most likely at No. 1 — in the world’s Top 500 Supercomputer listing.

      Chris Preimesberger
      Chris Preimesberger
      https://www.eweek.com/author/cpreimesberger/
      Chris J. Preimesberger is Editor Emeritus of eWEEK. In his 16 years and more than 5,000 articles at eWEEK, he distinguished himself in reporting and analysis of the business use of new-gen IT in a variety of sectors, including cloud computing, data center systems, storage, edge systems, security and others. In February 2017 and September 2018, Chris was named among the 250 most influential business journalists in the world (https://richtopia.com/inspirational-people/top-250-business-journalists/) by Richtopia, a UK research firm that used analytics to compile the ranking. He has won several national and regional awards for his work, including a 2011 Folio Award for a profile (https://www.eweek.com/cloud/marc-benioff-trend-seer-and-business-socialist/) of Salesforce founder/CEO Marc Benioff--the only time he has entered the competition. Previously, Chris was a founding editor of both IT Manager's Journal and DevX.com and was managing editor of Software Development magazine. He has been a stringer for the Associated Press since 1983 and resides in Silicon Valley.
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