Acquisition of a Supercomputer for Theoretical Geophysics

购买理论地球物理超级计算机

• 批准号: 9975753
• 负责人: Ronald Cohen
• 金额: $ 28.09万
• 依托单位: Carnegie Institution of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2002-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975753&HistoricalAwards=false
• 关键词: Acquisition; Supercomputer; Theoretical; Geophysics

9975753CohenThe acquisition of a 16 processor SGI/Cray SV1 supercomputer with peak performance of 19.2 GFLOPS will allow us to do important theoretical geophysics computations that would otherwise not be tractable. We also will upgrade and increase the capacity of our RAID 5 network file server to maintain our input and output data sets and codes. We will use the facility to study: (1) the behavior of transition metal ions and iron bearing minerals at high pressures; (2) diffusion and rheology of perovskite and magnesiowustite; (3) high-pressure high-temperature elasticity and anelasticity of perovskite, magnesiowustite, iron, and other important Earth phases; and (4) convective and subduction transport in the mantle and effects of realistic rheologies on mantle convection. Major outside users currently include Lars Stixrude and his group (Univ. Michigan), and S. King (Purdue Univ.). This facility will be unparalleled in ability to provide significant blocks of access, especially for large memory jobs. This facility is crucially needed for our research, which would be crippled without it. The upgrade would also enhance and sustain the investment NSF has already made in our Cray system. Research problems that will become possible are: (1) Diffusion, rheology, and finite temperature elasticity and anelasticity of orthorhombic silicate perovskite (with NSF sponsored post-doc Frederic Marton); (2) Effects of ferrous and ferric iron on properties of magnesiowustite and perovskite (with NSF sponsored post-doc Stephen Gramsch); (3) High quality molecular dynamics simulations of viscosity and melting curve of Fe (with major outside user Prof. L. Stixrude); (4) Convection modeling with realistic rheologies obtain via mineral physics (with major outside user: Prof. S. King, Purdue University).***

9975753 Cohen收购16处理器SGI/Cray SV 1超级计算机，峰值性能为19.2 GFLOPS，将使我们能够进行重要的理论物理计算，否则将无法处理。我们还将升级和增加我们的RAID 5网络文件服务器的容量，以维护我们的输入和输出数据集和代码。 我们将利用该装置研究：（1）过渡金属离子和含铁矿物在高压下的行为;（2）钙钛矿和镁橄榄石的扩散和流变学;（3）钙钛矿、镁橄榄石、铁和其他重要地球相的高压高温弹性和滞弹性;（4）地幔中的对流和俯冲输送以及现实流变学对地幔对流的影响。 目前主要的外部用户包括Lars Stixrude和他的小组（密歇根大学），以及S。国王（普渡大学）。这种设施将是无与伦比的能力，提供重要的访问块，特别是对大内存作业。这个设施对我们的研究是至关重要的，如果没有它，我们的研究就会瘫痪。升级也将加强和维持NSF已经在我们的克雷系统上进行的投资。 将成为可能的研究问题有：（1）正交硅酸盐钙钛矿的扩散、流变、有限温度弹性和滞弹性（与NSF赞助的博士后Frederic Marton）;（2）亚铁和三价铁对镁橄榄石和钙钛矿性质的影响（与NSF赞助的博士后Stephen Gramsch）;（3）高质量的分子动力学模拟的粘度和熔化曲线的铁（与主要外部用户教授L。（4）通过矿物物理学获得具有真实流变学的对流模型（主要外部用户：S. King，Purdue University）. *