openTomo.orgA library for tomographic tools?

Possible topics

• Wiki (on numerical methods, codes collected, tools, terminology, desired future tools,... )

• Code, code modules, helper scripts, ...• Model parameterisation tools• Interfacing data sets

2

Motivation

• Simulation codes will be our main tool

• Hardware will be increasingly complex and heterogeneous

• Wave propagation physics is well understood

• Some solvers are in fairly mature state

• Benchmarking facilities have been developed

• Community well structured through previous projects (SPICE, NERIES, etc.)

Why Now?• More and more Projects

on a European scale• Support for e-

infrastructure in the next decades (EPOS)

• Funding agencies (national, EU) are beginning to understand the software crisis

• „Software is infrastructure“

• Calls for „virtual communities“

• QUEST funding and involved partners

• Exploding hardware facilities

• New hardware architectures

Previous work

SPICE library

Interactive Benchmarking

Moczo et al., 2006

Training Material

SPICE Publications – via www pages

1st SPICE Book (Moczo et al.)-> Finite Differences

2nd SPICE Book (Brokesova)-> Ray Theory (now available)

Wu R.S., Maupin V (eds) 2006. Advances in Wave Propagation in Heterogeneous Earth, v.48 of "Advances in Geophysics", Series editor R. Dmowska, Academic Press, Elsevier.

SPICE Publications – via www pages

1st SPICE Book (Moczo et al.)-> Finite Differences

2nd SPICE Book (Brokesova)-> Ray Theory (now available)

Wu R.S., Maupin V (eds) 2006. Advances in Wave Propagation in Heterogeneous Earth, v.48 of "Advances in Geophysics", Series editor R. Dmowska, Academic Press, Elsevier.

openTomo?

• Why not QUEST library?• Is there a market?• Can it be sustained after

the end of QUEST?• Founding projects

(rather than one project)

• Potential inclusion and support through EPOS in the future

• Dissemination through special sessions (EGU, AGU, SEG, EAGE)

openTomo, Categories?

Any tools you need to solve a tomographic

inverse problem from A-Z

Categories

• Data processing• Classical methods

– Ray theory – Normal modes

• Simulation tools (svn!)– 2,3D solvers– Cartesian– Spherical

• Earth model library– Geophysical models– Grids– Drivers

• Adjoint tools, inversion– Adjoint codes– Sampler

• Visualization

Categories (cont‘d)

• Animation library• Training

material/Tutorials– Codes– Methods– Data recovery– Data handling

• Data sets– Pre-processed

Potential Support (-ing projects)• QUEST• ANU (Kennett, Sambridge)• TOAST (LMU)• MACES (LMU-TUM)• GlobalSeis (Nice)• EPOS• NERA• …

Open questions

• Community support?• Willing to contribute software?• Willing to use the tools offered?• Etc.

-> success will depend on funding coming through for www and software developers