cyberinfrastructure for the geosciences integrating high performance computing with data...

www.geongrid.orgCYBERINFRASTRUCTURE FOR THE GEOSCIENCES

Integrating high performance computing with data infrastructure

using the GEON grid

4D simulation of continental 4D simulation of continental deformation in the western US:deformation in the western US:

Mian Liu, Huai Zhang & Youqing YangMian Liu, Huai Zhang & Youqing Yang

University of Missouri-Columbia

San Diego Supercomputer


OutlineOutline

• The science drive

• Preliminary modeling results: old and new

• A new approach for community computational service


Diffuse deformation in the western US


EarthScope and other studies promise unprecedented growth of observational data

Data integration & interpretation


A Preliminary Finite Element Model of Active A Preliminary Finite Element Model of Active Crustal Deformation in the Western USCrustal Deformation in the Western US


The Power of GEON Cluster NodesThe Power of GEON Cluster NodesOriginal 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)


The fine mesh allows important details The fine mesh allows important details to be included in the modelto be included in the model


Automatic domain decomposition Automatic domain decomposition for parallel computingfor parallel computing


Automatic data partitioning and Automatic data partitioning and communication among sub-domains communication among sub-domains Domain partitioning with minimized inter-boundaries (blue area) for parallel communication


The model now allows simulation of large scale The model now allows simulation of large scale continental deformation with unprecedented detailcontinental deformation with unprecedented detail

Displacement-x

Displacement-y

displacement-z

Vertical stress


The model now allows simulation of large scale The model now allows simulation of large scale continental deformation with unprecedented detailcontinental deformation with unprecedented detail


• 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…


How to integrate GEON data infrastructure How to integrate GEON data infrastructure with computing resources to facilitate with computing resources to facilitate

scientific investigations?scientific investigations?

HPCC

Internet

Data Grid

Physical model


HPCC

Internet

Data Grid

Physical model

Automatic code

generator!

A prototype of an integrated modeling A prototype of an integrated modeling environment on the GEON gridenvironment on the GEON grid


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0

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xxzxyxx

fzyx

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Automatic sourcecode generator

funcfuna=+[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 =>???


Thank you!Thank you!

cyberinfrastructure for the geosciences integrating high performance computing with data...

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