1. FP6−2004−Infrastructures−6-SSA-026409 www.eu-eela.org E-infrastructure shared between Europe and Latin America High Energy Physics Applications in EELA Lukas Nellen I. de Ciencias Nucleares, UNAM, Mexico 8th EELA Workshop October 22, 2007

2. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 2 WP3: Identification and support of Grid enhanced applications –Coordinated by CIEMAT –Identifies, selects and customizes relevant applications and tools suitable for the Grid dissemination process in:  T3.1 Biomedicine (CUBAENERGIA, ULA, UPV)  T3.2 High Energy Physics (CERN, CIEMAT, UFRJ, UNAM, UNLP, UTFSM)  T3.3 Additional Applications e-Education (CECIERJ/CEDERJ, CIEMAT, CUBAENERGIA, UFRJ, UNAM) Climate (UC, UDEC, SENAMHI) –Aims at being the place of information exchange between already gridified applications and future ones. WORK PACKAGE 3: Applications

3. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 3 Why HEP Applications High Energy Physics applications of the current generation of experiments are –Mature –Grid-oriented –Well supported by large, international collaborations Provide guaranteed initial applications Can act as motor to drive GRID deployment

4. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 4 HEP applications: why GRID? Computing for HEP experiments requires the processing and handling of large quantities of data –Several Pbytes/year: extremely resource hungry –The LHC experiments will produce 10% of all data generated by humanity per year Ideal for GRID computing –Large number of independent events –Easily distributed –No communication required during processing

5. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 5 LHC at CERN

6. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 6 HEP applications Initial applications –ALICE –LHCb –Selected because of  interest of EELA partners  Maturity of the application Additional applications –ATLAS –CMS –Pierre Auger

7. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 7 Study the physics of strongly interacting matter at extreme energy densities, where the formation of a new phase of matter, the quark-gluon plasma, is expected. ALICE

8. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 8 The ALICE experiment level 0 - special hardware 8 kHz (160 GB/sec) level 1 - embedded processors level 2 - PCs 200 Hz (4 GB/sec) 30 Hz (2.5 GB/sec) 30 Hz (1.25 GB/sec) data recording & offline analysis Total weight10,000t Overall diameter 16.00m Overall length25m Magnetic Field0.4Tesla ALICE Collaboration ~ 1/2 ATLAS, CMS, ~ 2x LHCb ~1000 people, 30 countries, ~ 80 Institutes http://aliceinfo.cern.ch/

9. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 9 ALICE computational framework ROOT AliRoot STEER Virtual MC G3G4 FLUKA HIJING MEVSIM PYTHIA6 PDF EVGEN HBTP HBTAN ISAJET AliEn + LCG EMCALZDCITSPHOSTRDTOFRICH ESD AliAnalysis AliReconstruction PMD CRTFMDMUONTPCSTARTRALICE STRUCT AliSimulation JETAN EELA

10. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 10 ALICE GRID Job 1.1lfn1 Job 1.2lfn2 Job 1.3lfn3, lfn4 Job 2.1lfn1, lfn3 Job 2.1lfn2, lfn4 Job 3.1lfn1, lfn3 Job 3.2lfn2 Site ALICE central services Optimizer Computing Agent RB CE WN Execs agent Submits job User ALICE Job Catalogue VO-Box LCG User Job ALICE catalogues Registers output lfnguid{se’s} lfnguid{se’s} lfnguid{se’s} lfnguid{se’s} lfnguid{se’s} ALICE File Catalogue packman SA xrootd GUID LFC SRM MSS File access Workload request SURL

11. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 11 Three groups –INFN-Catania –CIEMAT –UNAM Four resource centres set up for ALICE jobs –INFN-Catania –CIEMAT Madrid –CIEMAT Trujillo –UNAM Participating in data challenges Working on jobs of direct interest to EELA partners Submission of ALICE Grid jobs from Latin America Jobs running on EELA sites on both sides of the Atlantic ALICE IN EELA

12. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 12 Aims are to fully investigate the CP violation in the Bd and Bs systems, and potentially to discover the new physics beyond the standard model. LHCb

13. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 13 LHCb IN EELA One group –UFRJ Three resource centers support LHCb –INFN-Catania –CIEMAT –UFRJ Sites undergoing EGEE certification as required by LHCb In Data Challenge: Package of 500 events every 20h, 0.5Gb in size, negligible impact on network.

14. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 14 http://atlas.web.cern.ch/Atlas/index.html Atlas in EELA CIEMAT already established UNLP has recently joined the ATLAS collaboration UTFSM has started to collaborate with ATLAS UFRJ ATLAS group expressed interest in using the EELA infrastructure UNLP is requesting funding for a resource centre for ATLAS production –To be shared with EELA UTFSM is in the process of setting up a resources centre

15. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 15 http://cms.cern.ch/ CMS in EELA CMS is the only LHC experiment without participation from a Latin American EELA partner CMS groups in EELA member countries –Brasil –Mexico –Spain (CIEMAT) CMS uses the same network as EELA We have to start to talk with CMS –LA groups have connection to Fermilab –Use OpenScienceGrid, not EGEE middleware

16. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 16 Four EELA partners –Catania –UFRJ –UNAM –UNLP Located in Malargüe, Mendoza, Argentina Application running already on EGEE AugerAccess project funded by EU Data transfer uses LA network infrastructure –Explore benefits from switching to GRID tools –SRB based solution under development http://www.auger.org/ Pierre Auger Observatory in EELA

17. FP6−2004−Infrastructures−6-SSA-026409 E-infrastructure shared between Europe and Latin America 8th EELA Workshop, UNAM, Mexico, October 22, 2007 17 Conclusions and Outlook Initial HEP applications running on EELA infrastructure Have production status –Require continuation of infrastructure  EELA-2 ! –Require infrastructure of production quality  EELA delivered Additional HEP applications joining EELA or EELA-2 –Atlas –CMS –Pierre Auger