1. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Integrating high performance computing with data infrastructure using the GEON grid 4D simulation of continental deformation in the western US: Mian Liu, Huai Zhang & Youqing Yang University of Missouri-Columbia San Diego Supercomputer

2. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Outline The science drive Preliminary modeling results: old and new A new approach for community computational service

3. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Diffuse deformation in the western US

4. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org EarthScope and other studies promise unprecedented growth of observational data Data integration & interpretation

5. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org A Preliminary Finite Element Model of Active Crustal Deformation in the Western US

6. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org

7. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org The Power of GEON Cluster Nodes Original model (single CPU) Less than 3000 elements Three layers in R-direction 2 min for per time step Current model (2-nodes, 4CPUs) More than 800,000 unstructured elements Major Faults and more deformation zones Subduction zone 21 layers in R-direction 15 min per time step (x 40 vertical topographic exaggeration)

8. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org The fine mesh allows important details to be included in the model

9. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Automatic domain decomposition for parallel computing

10. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Automatic data partitioning and communication among sub-domains Domain partitioning with minimized inter-boundaries (blue area) for parallel communication

11. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org The model now allows simulation of large scale continental deformation with unprecedented detail Displacement-x Displacement-y displacement-z Vertical stress

12. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org The model now allows simulation of large scale continental deformation with unprecedented detail

13. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES 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…

14. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org How to integrate GEON data infrastructure with computing resources to facilitate scientific investigations? HPCC Interne t Data Grid Physical model

15. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org HPCC Interne t Data Grid Physical model Automatic code generator! A prototype of an integrated modeling environment on the GEON grid

16. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Automatic source code generator 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) PDEs Complete source code FEM Modeling Language GEON Data Physical model Model results GEON HPCC Data =>???

17. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Thank you!

18. CYBERINFRASTRUCTURE FOR THE GEOSCIENCES www.geongrid.org Some fundamental questions about western US tectonics What are the driving forces (and their relative roles) for active deformation in western US? How does the lithospheric rheology, reflecting the protracted tectonic history, controls crustal deformation in western US? How have the evolving plate boundary conditions, topography, and thermal-rheologic structures affected the 4D tectonic evolution?