1. CosmoGrid Grid-enabled Computational Physics of Natural Phenomena Dublin Institute for Advanced Studies

2. PRTLI funded Project Dublin Institute for Advanced Studies National University of Ireland, Galway National University of Ireland, Dublin Dublin City University Armagh Observatory Met Éireann Grid-Ireland HEAnet

3. Philosophy One Grid (Grid-Ireland) supporting many virtual organisations CosmoGrid is the first of these Start with a (hopefully!) straightforward computational grid. Use this to spawn further data-grids, knowledge-grids etc.

4. Objectives of CosmoGrid Astrophysics –High Energy Phenomena –Star formation Geophysics –Seismic inversions –Rheological modelling –Digital rocks Atmospheric Physics –Regional climate modelling –Atmospheric aerosol modelling

5. Character of problems Causal classical systems well suited to simple Beowulf type clusters. Significant overlap in methods, even in underlying mathematical model (eg CFD). Computationally sophisticated user communities. Well placed to exploit the resource sharing fundamental to the Grid concept.

6. Proposed Implementation Three large Beowulf clusters interconnected over the Grid. Dedicated Grid gateway machines in each site centrally monitored and administered by Grid-Ireland. Extensive use of VRVS for collaboration (might switch to access grid)

7. Organisational Problems How do you foster a sense of community and of belonging in a virtual organisation? What legal structure is appropriate for a virtual organisation? How do you resolve conflicts of interest in the case of multiple overlapping VOs?

8. Future Directions Data-grid(s) Knowledge grid(s) e-Scholarship, not just e-Science Europeanisation and Globalisation