Christos Markou Institute of Nuclear Physics NCSR ‘Demokritos’ GRID Computing Christos Markou Institute of Nuclear Physics NCSR ‘Demokritos’ ECFA meeting, 10/10/2008, Athens, Greece

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Contents Motivation Partners Projects Hellasgrid Where we stand Challenges ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Motivation Greek participation to ALICE, ATLAS and CMS experiments HEP community has realized early enough that the management and processing of the LHC data pose unique challenges, requiring novel solutions: Extreme diversity in geographical location, of research groups and resources, differences in administration procedures, the extremely large datasets, long CPU processing times, intensive I/O, require: Integration of all available computing and storage resources Access to resources through unified/transparent interfaces Unique/single user sign-on, identification and authentication Efficient management of code and data sets ……. ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' The Grid and related technologies seem able to serve these purposes well (especially today after a long and difficult path of development which lasted for almost a decade). Chosen as the solution for the LHC computing infrastructure. Greek HEP groups got involved in Grid related projects and activities. ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Partners All the HEP groups in Greece, i.e: Institute of Nuclear Physics, NCSR ‘Demokritos’ (CMS) University of Athens (ALICE, ATLAS and CMS) National Technical University of Athens ( ATLAS) University of Thessaloniki (ATLAS) University of Ioannina (CMS) Collaborating with GRNET SA – the Greek Academic network provider, and leading the Grid efforts in a nation-wide context Computer Science departments in UoA, NTUA, AUTh, UoP, etc… ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

Projects – Grid evolution in Greece First steps in middleware related projects funded by the EU, like CrossGrid 2002-2005, et al … Middleware testing and validation of production-grade software Configuration, operation and maintenance of production testbeds Gain expertise and know-how Build collaborations and links with other national and international groups. First small scale Grid clusters built and maintained through these efforts Great learning experience!! ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Participation in more mature projects like EGEE (2004-2006), EGEE-II (2006-2008), EGEE-III (2008-2010), GridCC, SEE-Grid, etc… Infrastructure support and operations Grid Core services User Support and Application support Middleware development, testing and validation Software deployment coordination Certification and Registration authorities User training ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

HellasGrid-Towards a National Grid Infrastructure Goal: Promote Grid technologies in Greece Build infrastructures Support operations and maintenance Overseen by: the General Secretariat of Research and Technology of the Ministry of Development Funding: Through the Greek Information Society programme in the context of the 3rd Community Support Framework Initial budget of ~ € 1.7 mn ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' HellasGrid MoU hellasgrid Memorandum of Understanding signed by 24 institutions Joint Research Unit Committee Scientific Committee Duration: until 31/12/2013 Members undertake joint actions in Grid projects (EGEE, SEE-GRID, etc.) Members support and use the hellasgrid infrastructure according to the AUP Members coordinate on Certification Authority and Registration Authorities ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

HellasGrid administration 6 Grid Operation Centres (GOCs): HG-01-GRNET HG-02-IASA HG-03-AUTH HG-04-CTI HG-05-FORTH HG-06-EKT GRNET on the top Next layer, the Coordination Control Center for GOCs (C3GOCs): Responsible for the interactions between GRNET and the local GOCs All GOCs are responsible for the local management of their Nodes: Responsible for the updating, new methods and tools for new management services implementation All GOCs support and service a multitude of VOs. ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

Where we stand at the moment 13 Grid clusters operating in Greece (as accounted by EGEE) 6 HellasGrid nodes – Funded by the HellasGrid initiative 7 Independent nodes – Funded by the hosting Institutes (limited resources and manpower) ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Grid infrastructure HG-01-GRNET : 64 CPUs, 10TB Disk Storage, 10TB Tape Storage HG-02-IASA : 128 CPUs, 4TB Disk Storage HG-03-AUTH : 128 CPUs, 4TB Disk Storage HG-04-CTI-CEID : 128 CPUs, 4TB Disk Storage HG-05-FORTH : 128 CPUs, 4TB Disk Storage HG-06-EKT : 256 CPUs, 12TB Disk Storage GR-01-AUTH : 100 CPUs, 4TB Disk Storage GR-03-HEPNTUA : 32 CPUs, 1TB Disk Storage GR-04-FORTH-ICS GR-05-DEMOKRITOS : 150 CPUs, 20TB Disk Storage GR-06-IASA : 20 CPUs, 1TB Disk Storage GR-07-UOI-HEPLAB : 28 CPUs, 2,5TB Disk Storage GR-09-UOA : 10 CPUs, 2TB Disk Storage All sites have Gigabit connectivity with GRNET Soon to be expanded with 240 new cores 160 TB Storage ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' HG-03-AUTH GR-01-AUTH GR-07-UOI-HEPLAB HG-01-GRNET HG-02-IASA HG-06-EKT GR-03-HEPNTUA GR-05-DEMOKRITOS GR-06-IASA GR-09-UOA HG-04-CTI-CEID HG-05-FORTH GR-04-FORTH ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Grid usage per VO ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'

ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos' Challenges Active Grid community in Greece, BUT HEP should focus on their specific needs. Dedicated infrastructure and manpower are necessary. MoU for LHC computing and targeted funding are an absolute requirement! ECFA meeting, 10/10/2008, Athens, Greece C. Markou, NCSR 'Demokritos'