Computational Upgrade for the SOEST Geophysics and Tectonics Group

[0841794 .康拉德]该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。该提案寻求7万美元的资金来购买升级的计算设备，以升级地球物理和构造组集群计算设施，该设施是由SOEST和NSF在2002年资助的。现有计算资源支持4名pi， 13名学生和1名博士后。然而，随着计算需求的增加，新的PI需要升级到新的128处理器集群，每个节点有16个节点，每个节点有两个四核处理器和16gb RAM。该系统集成了高速节点间通信系统。虽然其他人也可以使用，但pi将是主要用户。所要求的计算设备将被纳入区域和全球尺度的地幔流建模、高分辨率地震层析成像、三维地震反射处理和综合地球动力学模型等学科。具体项目包括利用有限元分析的地幔和岩石圈地球动力学，与地幔对流相关的板块构造运动，了解岩石圈应力，动态地形，约束地震各向异性流动，了解从整个地球到厘米尺度的流变学（通过研究粒度演化），对流和地幔熔融对海洋玄武岩地球化学的影响。了解洋中脊的磁力和断层作用，了解羽状脊相互作用和地球动力学，洋中脊地震建模，地幔板块上升流动力学，地壳增生，地震反射成像。升级后的集群系统将直接支持pi建议的研究生。此外，该集群将被纳入计算科学的研究生课程。代码开发、模型和数据将通过nsf资助的CIG中心共享。数据和输出将与nsf资助的项目如边际、山脊2000、CIG、地球范围和CSEDI进行对接。研究结果将发表在同行评议的文献中。＊＊＊

0841794ConradThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). This proposal seeks $70K funding to purchase upgraded computing equipment to upgrade the Geophysics and Tectonics group cluster computing facility - funded through SOEST and NSF in 2002. Current computing resources have supported 4 PIs, 13 students and 1 post-doc. However, the new hire PI along with increased computational needs warrants upgrade to a new 128 processor cluster, having 16 nodes each with two quad-core processors and 16 GB RAM. The proposed system integrates a high-speed inter-node communication system. While available to others, the PIs will be the principal users. The requested computing equipment will be incorporated into disciplines ranging from mantle flow modeling at regional and global scales, high-resolution seismic tomography, 3D seismic reflection processing, and integrating geodynamic models. Specific projects are outlined by the PIs and include mantle and lithosphere geodynamics using finite element analysis, plate tectonic motions associated with mantle convection, understanding lithospheric stresses, dynamic topography, constraining seismic anisotropy flow, understanding rheology at scales ranging from whole Earth down to cm scale (by studying grain-size evolution), convection and mantle melting impact on oceanic basalt geochemistry, understanding magnetism and faulting at mid-ocean ridges, understanding plume-ridge interactions and geodynamics, mid-ocean ridge seismic modeling, mantle-plate upwelling dynamics, and crustal accretion, seismic reflection imaging. The upgraded cluster system will directly support graduate students advised by the PIs. In addition, the cluster will be incorporated into a graduate class in computational science. Code developments, models and data will be shared through the NSF-funded CIG center. Data and outputs will be interfaced with NSF-funded programs like Margins, Ridge2000, CIG, Earthscope and CSEDI. Results will be published in peer-reviewed literature. ***