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Show The Salt Lake Tribune NATIONFriday, June 13, 1997 All Supercomputer First in Simulating Vase isinenatey Nuclear Explosion to Test Warhead THE ALBUQUERQUE TRIBUNE ALBUQUERQUE, N.M. — The world’s fastest supercomputer has doneit again at Sandia National I ‘atories by an “unpr ? simulation of a nuclear-weapon explosion — criticaltoolfor testing warheads without actually shoot- Weapon designerscall such simulations critical because they can no longer directly test warhead changes that might be needed for various reasons, including the aging ofparts. Since December, Teraflops has achieved a speed of 1.28 trillion calculations and ultimately is expect- ing them off. Another supercomputer simulation showed the catastrophic effects of a billion-ton comet smashing ed to achieve 1.8 trillion calculations per second, scientifically knownasfloating point operations per second (FLOPS). Howfastis that? Sandia scientists figure that a person using a handheld calculator would need about 57,000 years to into the Earth's atmosphere Scientists said the model showed the comet would vaporize huge volumes of ocean water, create ‘‘dev- astating tidal waves,” and eject enough water and debris into the atmosphereto affect the Karth’s climate, scientists said. calculate a problem that Terafiops answers in a sec- time in the near future. The supercomputer’s simulation of a nuclear- armed ballistic-missile explosion is being described and mastering the complexities of protein that as amazingly detailed in showing how specific components inside a warhead would fare during impact, makeslife possible. Built by Intel, whose Rio Ranchoplant produced its 9,072 Pentium Pro processors, Teraflops is now fully assembled at Sandia. It is housed in 76 comput breaking downthe effects to millionths of a second. The simulationis an example of how the supercomputer, which is dubbed ‘Teraflops” and was be- ing dedicated Wednesday at Sandia, can be used to address nuclear-weapon problemsin the post-Cold er cabinets covering 1,600 square feet It uses the ‘massively parallel computing system War era. It is part of the Department of Energy's Accelerated Strategic Computing Initiative, considered by nuclear-weaponscientists as providing some developed at Sandia in which multiple processors can workseparately on portions of a probiem at the same time, and together get the final answer quicker. Scientists used the Sandia-developed “CTH shock physics" supercomputer software to do the missile simulation. It included modeling the war head components and variables such as impact velocity, angle of impact and timing in millionths of a second. Comprehensive Test Ban Treaty. TRIPLE PLAY! ond. And, scientists say, Teraflops can address a range of general scientific problems, including “Grand Challenges’ — modeling global ¢! changes; understanding complex chemical crystal structures; Such an event is considered highly unlikely any- of the most important tools in DOE's “sciencebased” Stockpile Stewardship and ManagementProgram. The program aimsto ensure that the nation’s nuclear weaponsarereliable, secure and safe during the global ban on nuclear-weapontesting under the BooteasThon BANKRUPTCIES (AHRePOssEssiONs i (CHARGE-OFFS g (W/Lonn beravirs (FORECLOSURESi (HSLOW PAYS (AT LENS (7IvORGE MGUARANTEED FREE LAYAWAY! Ee LibRU eaCRRAtse aT Gl i il Pita. tl Pema LS 3 sescae p amer St THROWING! A FREE PAIR ANOTHER FREEPAIR dust for TRYING ON ANY VASQUE BOOT! WIN! with PURCHASE OF ANY VASQUE BOOT! ; L Men,Women, Kids too! FREE LAYAWAY! 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Try anytime during regular hours on 6/13 or 6/14 4.Two $350 Shopping sprees awarded, Eight Pairs of Clarion Hiking Boots, and 100 T-Shirts Copy ofrules is available onrequest SpocialPricesEffective6/12 through 6/22 or While Quantitios Last NaTonmor J wantroune hans live Friday June 13th from 4:00 pm to7.00 pm 3125 So. State @ outdoor Kirkham’s = &7 products & #* 486-4161 Mon.-Fri. 9:30 to 9:00 Sat. 9:30 10 7:00 Sun, 11:00 to 5:00 |
