ITR/AP (GEO) A Finite Element Geodynamo Model Optimized for High-Speed Beowulf PC-Clusters

ITR/AP (GEO) 针对高速 Beowulf PC 集群进行优化的有限元地球发电机模型

• 批准号: 0113050
• 负责人: Francis Dahlen
• 金额: $ 40万
• 依托单位: Princeton University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-04-15 至 2007-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0113050&HistoricalAwards=false
• 关键词: ITR; AP; GEO; Finite; Element

0113050BungeThis project deals with the very challenging problem of the generation of the Earth's magnetic field. The P.I.s will adopt a dual strategy in which the computer hardware and software are each specifically designed to function together at peak efficiency. In particular, the hardware will consist of a 144 processor Beowulf PC-cluster, yielding an estimated peak sustained performance of 100 Gflops - competitive with high-performance National Supercomputer Center machines, but at a fraction of the cost. To take full advantage of such a cluster, the software under consideration must be easily and efficiently parallelizable. The P.I. will derive the software from a finite element mantle convection code that is already fully parallelized, and already runs at high parallel efficiency on precisely such Beowulf clusters. Much of the conversion from mantle to core convection has already been done, with no loss in parallel efficiency.***

0113050Bunge 该项目解决了地球磁场生成这一极具挑战性的问题。 P.I. 将采用双重策略，其中计算机硬件和软件均经过专门设计，以便以最高效率协同工作。 特别是，该硬件将由 144 个处理器 Beowulf PC 集群组成，估计峰值持续性能为 100 Gflops——可与高性能国家超级计算机中心的机器竞争，但成本仅为其一小部分。 为了充分利用这样的集群，所考虑的软件必须能够轻松有效地并行化。 P.I.将从有限元地幔对流代码中导出该软件，该代码已经完全并行化，并且已经在这样的 Beowulf 集群上以高并行效率运行。 从地幔到核心对流的大部分转换已经完成，并行效率没有损失。***