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Early results from GENIE : A G rid- EN abled I ntegrated E arth System Model

Early results from GENIE : A G rid- EN abled I ntegrated E arth System Model. Paul Valdes P.J.Valdes@rdg.ac.uk (Currently at the Reading university, but moving to Bristol university in July) and the GENIE team. Coordinator: Tim Lenton – CEH Edinburgh Employees:

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Early results from GENIE : A G rid- EN abled I ntegrated E arth System Model

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  1. Early results from GENIE:A Grid-ENabled Integrated Earth System Model Paul Valdes P.J.Valdes@rdg.ac.uk (Currently at the Reading university, but moving to Bristol university in July) and the GENIE team

  2. Coordinator: Tim Lenton –CEH Edinburgh Employees: Chris Brockwell – UEA Norwich Murtaza Gulamali – London e-Sci. Centre Phil Harris – CEH Wallingford Andrew Yool – SOC Daniel Lunt – Reading/Bristol + 4 others just about to start Collaborators: James Annan –FRSGC, Japan Peter Cox –Hadley Centre Neil Edwards –Bern, Switzerland Julia Hargreaves –FRSGC, Japan Bob Marsh –SOC Steven Newhouse – London e-Sci. Centre Andy Ridgwell –UEA Norwich Principal investigator: Paul Valdes – Reading/Bristol Co-investigators: Melvin Cannell – CEH Edinburgh Simon Cox – Southampton e-Science Centre John Darlington – London e-Science Centre Richard Harding – CEH Wallingford Tony Payne – Bristol John Shepherd – Southampton Andrew Watson – UEA Norwich GENIE Team

  3. The Scientific Challenge

  4. 3D atmosphere Atmospheric CO2 3D ice sheets 2D sea ice 2D land surface 3D ocean Land biogeochemistry Ocean biogeochemistry Ocean sediments Full Earth System Model Modular, scaleable and traceable to more complex models

  5. The Technical Challenge NERC communities of environmental scientists are distributed How to … ? Collaborative grid-based component programming …flexibly integrate state-of-the-art Earth system modules … improve model composition tools Modern development environment Management of distributed compute and data resources … integrate large-scale hardware systems in a flexible way Data archives & visualisation of simulation runs … share, post-process, archive, re-use modelling results Inter-comparison of alternative modules/ models … test hypotheses about Earth System Modelling

  6. GENIE Scenario • Enter Portal • Security infrastructure • Authentication and authorisation (2) Compose Simulation Workflow composition Meta-scheduler (3) Run model and monitor progress Workflow execution (4) Archive and process results Visualisation and analysis (Link to GODIVA project)

  7. The Underlying Technology • Portal • Web-based • Wrapping of component models • XML schema, Java, Web services technology • Repositories for components and data • Open-source database system (e.g. Storage Resource Broker) • Computational Grid infrastructure • Condor pools, Beowulf clusters, linked by middleware (ICENI) • Meta-scheduler • Monitors the Grid, runs model on best platform/s

  8. Initial ModelGENIE-1-C (C-GOLDSTEIN)Bob Marsh, Neil Edwards 2D atmosphere EMBM Atmospheric CO2 2D sea ice 3D ocean GOLDSTEIN Runoff ~1000 years simulated per ~1 hour CPU time on a PC

  9. Global Oceanic Circulation After W. S. Broecker, modified by E. Maier-Reimer

  10. Extreme Circulation States Collapsed Maximum Atlantic latitude (N) latitude (N) Images from Bob Marsh

  11. Freshwater Forcing Atlantic to Pacific N. Atlantic tropics to extra-tropics Image from Bob Marsh

  12. Atlantic Circulation (below 500m)Response to Freshwater Forcing 961 x 4000 year simulations took 3 days on a Condor pool of ~230 workstations Simulations by Bob Marsh and Murtaza Gulamali Image from Andrew Yool

  13. Next Steps • Environmental Science • Closing the carbon cycle • Improving the atmosphere • Add 3-D ice sheet model • E-Science • Expand functionality and flexability of portal • Develop model database system • Implement first version of modular system

  14. Summary and Future of GENIE • A Grid-ENabled Integrated Earth System Model • flexible component coupling • model execution on Grid • collaborative data sharing • virtual organisation of Earth System Modellers • A tool for the Earth system science community • To be used in RAPID and EFCHED • Link to Tyndall Integrated Assessment Model • Potentially important for new initiatives such as QUEST

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