1. Analysis demos from the experiments

2. Analysis demo session Introduction –General information and overview CMS demo (CRAB) –Georgia Karapostoli (Athens University and CERN) ATLAS demo (Ganga) –Johannes Elmsheuser (Munich University)

3. LHC comprehensive review demo session Last review –4 demos from the 4 experiments This review –Show the evolution and the current situation –Small introduction and some information about ALICE and LHCb –Switch to two presentations CMS ATLAS

4. Introduction Increased analysis activity on the grid –More/larger data set available –Maturing of the analysis tools –Better stability overall And also more users

5. Stefano Belforte CMS week Sept 2006

6. CMS analysis only: July 2006 over 60k jobs, over 40 active users Site breakdown Data from the Experiment Dashboard: analysis only

7. Dietrich Liko Sept 2006

8. ALICE Integration with shell (Unix environment) and ROOT Steady growth of users (now ~40 concurrent users) Tutorials: ~1 per month in 2006 User Guide: first published in January 2006, now in its 12 th revision: –http://project-arda-dev.web.cern.ch/project-arda- dev/alice/apiservice/AA-UserGuide-0.0m.pdfhttp://project-arda-dev.web.cern.ch/project-arda- dev/alice/apiservice/AA-UserGuide-0.0m.pdf ~40 users AugustSeptember Grid services information and user job status can be interrogated directly from the shell Root is the user interface Users connected to the grid Via the API service

9. Job defined in Cambridge Job run in Amsterdam LHCb Ganga gives uniform access to computing resources (grid and non- grid) Scripting language is Python, already widely used in LHCb Growing user base. Currently about 20 regular users (~50% of the LHCb VO) Tutorials: 2-3 per year at CERN + regional tutorials (e.g., Italy, UK) User guide and tutorials published on the Ganga web site –http://cern.ch/ganga Users can either use a Command line interface or a GUI Preferred submission to the Grid via the DIRAC WMS

10. Demo template Introduction to the tool –Moving your analysis to the Grid Starting from a working application (on you laptop/desktop) How to prepare a job to run on the Grid –Integration with experiments data management –Job preparation Declaring the input data Splitting parameter (analyse the dataset with n parallel jobs) –Job submission Example of real activity done with the tool –Some plots of physics results –Mention how many data have been analysed, number of jobs etc… –Show some example of jobs already executed Conclusion –Show the running jobs –Some comments around your experience