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4D simulation of continental deformation in the western US:. Integrating high performance computing with data infrastructure using the GEON grid. Mian Liu, Huai Zhang & Youqing Yang University of Missouri-Columbia San Diego Supercomputer. The science drive
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4D simulation of continental deformation in the western US: Integrating high performance computing with data infrastructure using the GEON grid Mian Liu, Huai Zhang & Youqing Yang University of Missouri-Columbia San Diego Supercomputer www.geongrid.org
The science drive Preliminary modeling results: old and new A new approach for community computational service Outline www.geongrid.org
Diffuse deformation in the western US www.geongrid.org
EarthScope and other studies promise unprecedented growth of observational data Data integration & interpretation www.geongrid.org
A Preliminary Finite Element Model of Active Crustal Deformation in the Western US www.geongrid.org
The Power of GEON Cluster Nodes Current model (2-nodes, 4CPUs) Original model (single CPU) (x 40 vertical topographic exaggeration) • More than 800,000 unstructured elements • Major Faults and more deformation zones • Subduction zone • 21 layers in R-direction • 15 min per time step • Less than 3000 elements • Three layers in R-direction • 2 min for per time step www.geongrid.org
The fine mesh allows important details to be included in the model www.geongrid.org
Automatic domain decomposition for parallel computing www.geongrid.org
Automatic data partitioning and communication among sub-domains Domain partitioning with minimized inter-boundaries (blue area) for parallel communication www.geongrid.org
The model now allows simulation of large scale continental deformation with unprecedented detail Displacement-x Displacement-y displacement-z Vertical stress www.geongrid.org
The model now allows simulation of large scale continental deformation with unprecedented detail www.geongrid.org
Modeling active tectonics and the 4D continental deformation history in the western US Develop a modeling language based computing environment for GEON What’s next… www.geongrid.org
Physical model HPCC Internet Data Grid How to integrate GEON data infrastructure with computing resources to facilitate scientific investigations? www.geongrid.org
A prototype of an integrated modeling environment on the GEON grid Automatic code generator! Physical model HPCC Internet Data Grid www.geongrid.org
Complete source code Data =>??? Physical model PDEs FEM Modeling Language func funa=+[u/x] ……… funf=+[u/y]+[v/x] ……… dist =+[funa;funa]*d(1,1)+[funa;funb]*d(1,2)+[funa;func]*d(1,3) +[funb;funa]*d(2,1)+[funb;funb]*d(2,2)+[funb;func]*d(2,3) +[func;funa]*d(3,1)+[func;funb]*d(3,2)+[func;func]*d(3,3) +[fund;fund]*d(4,4)+[fune;fune]*d(5,5)+[funf;funf]*d(6,6) load = +[u]*fu+[v]*fv+[w]*fw-[funa]*f(1)-[funb]*f(2)-[func]*f(3) -[fund]*f(4)-[fune]*f(5)-[funf]*f(6) GEON Data Automatic source code generator Model results GEON HPCC www.geongrid.org
Thank you! www.geongrid.org