Integrating high performance computing with data infrastructure using the GEON grid

1
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
Outline

• The science drive
• Preliminary modeling results old and new
• A new approach for community computational service

3
Diffuse deformation in the western US
4
EarthScope and other studies promise
unprecedented growth of observational data
Data integration interpretation
5
A Preliminary Finite Element Model of Active
Crustal Deformation in the Western US
6
(No Transcript)
7
The Power of GEON Cluster Nodes
Original model (single CPU)
Current model (2-nodes, 4CPUs)
(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

8
The fine mesh allows important details to be
included in the model
9
Automatic domain decomposition for parallel
computing
10
Automatic data partitioning and communication
among sub-domains
Domain partitioning with minimized
inter-boundaries (blue area) for parallel
communication
11
The model now allows simulation of large scale
continental deformation with unprecedented detail
Displacement-x
Displacement-y
displacement-z
Vertical stress
12
The model now allows simulation of large scale
continental deformation with unprecedented detail
13
Whats next

• Modeling active tectonics and the 4D continental
  deformation history in the western US
• Develop a modeling language based computing
  environment for GEON

14
How to integrate GEON data infrastructure with
computing resources to facilitate scientific
investigations?
15
A prototype of an integrated modeling
environment on the GEON grid
Automatic code generator!
Physical model
HPCC
Internet
Data Grid
16
Data gt???
Physical model
PDEs
FEM Modeling Language
func funau/x funfu/yv/x dist
funafunad(1,1)funafunbd(1,2)funafunc
d(1,3) funbfunad(2,1)funbfunbd(2,2)f
unbfuncd(2,3) funcfunad(3,1)funcfunbd
(3,2)funcfuncd(3,3) fundfundd(4,4)fune
funed(5,5)funffunfd(6,6) load
ufuvfvwfw-funaf(1)-funbf(2)-fun
cf(3) -fundf(4)-funef(5)-funff(6)
GEON Data
Automatic source code generator
Model results
GEON HPCC
17
Thank you!
18
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?