1. Applications & a Reality Check Mark Hayes

2. Applications on the UK Grid Ion diffusion through radiation damaged crystal structures (Mark Calleja, Mark Hayes, Cambridge) Monte Carlo simulation lots of independent runs small input & output more CPU -> higher temperatures, better stats access to ~100 CPUs on the UK Grid Condor-G client tool for farming out jobs

3. Applications on the UK Grid GEODISE - Grid Enabled Optimisation & Design Search for Engineering (Simon Cox, Andy Keane, Hakki Eres, Southampton) Genetic algorithm to find the best design for satellite truss beams Java plugins to MATLAB for remote job submission to the Grid Used CPU at Belfast, Cambridge, RAL, London, Oxford & Southampton

4. Applications on the UK Grid GENIE - Grid Enabled Integrated Earth system model (Steven Newhouse, Murtaza Gulamali - Imperial) Ocean-atmosphere modelling How does moisture transport from the atmosphere effect ocean circulation? ~1000 independent 4000year runs (3 days real time!) on ~200 CPUs Flocked condor pools at London & Southampton

5. Applications on the UK Grid Reality Grid - see earlier talk BLAST on the Grid - John Watt, NeSC Nimrod/G - Jonathan Giddy, Cardiff DL_POLY - Rob Allan, Daresbury R-Matrix - Terry Harmer, Belfast GITS integration test scipt - David Baker, Southampton

6. Reality Check Lots of work to get accounts set up at remote sites Job monitoring and debugging is difficult MDS information providers could be richer MDS availability & poor performance GT2 interface to job schedulers is very poor GT2 version incompatibilities Software licences (e.g. for DL_POLY) Firewall port ranges (not just for Globus)

7. Work in progress Virtual Organization Management (VOM) portal will ease account requests & generation Single set of user terms & conditions. This must actually reduce the amount of paperwork involved to be worthwhile! XML database/web service alternative to MDS (+GT3?) Trusted host database for firewall configuration Accounting: web service tools for collection & query of usage info Documentation: papers in preparation. Perhaps also a user’s & administrator’s guide?