alex read, dept. of physics grid activity in oslo cern-satsingen/miljøet møter mn-fakultetet oslo,...
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Alex Read, Dept. of Physics
Grid Activity in Oslo
CERN-satsingen/miljøet møter MN-fakultetet
Oslo, 8 juni 2009
Alex Read
Alex Read, Dept. of Physics
Grid Activity in Oslo
• World-wide LHC Computing Grid (Norway~1.8%)• Advanced Resource Connector (ARC) middleware-
related projects• Norwegian Tier-1(+2) sites• Tier-3 status• Ganga (multi-grid job submission tool for LHC++)• ARC performance in ATLAS production• Participation in and/or influence on Norwegian,
Nordic, European grid initiatives
Alex Read, Dept. of Physics
Norwegian resources for WLCG
– Provided outside the HEP projects (ALICE & ATLAS)• Tier-1 & 2: Binding through MoU yearly basis• Tier-3 for analysis “self-funded”
• NorGrid/NOTUR• Small contributions from NFR projects
– 2 Grid-related post-docs for Alice and Atlas (50% HEP projects, 50% Uninett-Sigma/Norwegian eScience - eVita)
– 1 in Oslo EPF
F. Ould-Saada
Alex Read, Dept. of Physics
Oslo participation (and quite some leadership) in the Oslo participation (and quite some leadership) in the NorduGrid Collaboration and the 3 ARC middleware-NorduGrid Collaboration and the 3 ARC middleware-related Grid projectsrelated Grid projects
• NorduGrid Collaboration (www.nordugrid.org)– Develop, support, and coordinate inputs to the Advanced
Resource Connector (ARC) middleware, Oslo in from the beginning in 2001, current leader
• The KnowARC project (www.knowarc.eu)– Create a novel, powerful Next Generation Grid middleware
based on ARC and bridge the gaps between business and academia in Grid development (leadership and large contr. From Oslo)
• NDGF (www.ndgf.org)– NDGF is a production grid facility that leverages existing,
national computational resources and grid infrastructures Nordic Tier-1 and external Tier-2’s
• NGIn (www.nordugrid.org/ngin)– Train new Grid experts, securing further technology
development 5 PhD grants (2 in Oslo!), Grid school
ARC ~ 2M Euros / year Farid Ould-Saada
(rest of ATLAS is jealous)
Alex Read, Dept. of Physics
Grid activities at UiO / USIT
• Tier-1, Tier-2 (NDGF) compute resources– 4000 core cluster (titan), Condor pool
– Atlas (significant fraction of Nordic T1)
– Alice production (to resume spring ‘09)
– 362 dedicated cores ->552 dedicated cores (April 2009)
– free resource (idle cores)
– Regularly see > 1000 grid jobs
– NorGrid production site
• Tier-1 storage pools (dCache)– 120 TB 2008, 260 TB (April ‘09)
Hans Eide
Alex Read, Dept. of Physics
Grid activities at UiO / USIT (cont.)
• Collaboration between HEP group and USIT– Middleware development (ARC)– Graduate students (2)
– Jon Kristian Nielsen (storage)– Dmytro Karpenko (workflow)
• Building up Tier-3 for physics analysis• CPU allocation from NOTUR (87 kh, 4-9.09)
• titan@UiO• stallo@UiT
• 9 TB dedicated storage• 32 Interactive nodes@usit
Hans Eide
Alex Read, Dept. of Physics
Distributed analysis in ATLAS
• Ganga is the primary tool in ATLAS to submit user analysis jobs to the WLCG (which has 3 diverse middlewares: VDT, gLite, ARC)
• Oslo EPF supports the ARC backend
Ganga in action
Bjørn Samset
Alex Read, Dept. of Physics
Performance of ARC-enabled NDGF
Jan-Sep 2008
Alex Read, Dept. of Physics
Get on the grid...snip...
The default grid middleware that is used by the NorGrid initiative is the Advanced Resource Connector (ARC). You need to install the ARC middleware client on your local desktop. There is a wealth of documentation on ARC middleware. In particular, the ARC User Guide is recommended literature. ...snip...
Alex Read, Dept. of Physics20/04/23 F. Ould-Saada 10
http://www.nordforsk.org/text.cfm?id=499&path=58,66
•Principal goal is to establish a Nordic eScience committee and management structure•Activities include programme plans for resourcing computational grand challenge research (like LHC...)•An expert group on Grid infrastructure is established: NDGF, Nordic participation in WLCG (including LHC upgrade plans) are among central topics in the mandate of the group.
eNoria – The Nordic eScience Initiative
Alex Read, Dept. of Physics
Establishing a sustainable grid (EGI)
Thanks to NorduGrid, NDGF (and others), production grids are reality today
F. Ould-Saada
Alex Read, Dept. of Physics20/04/23
OSLO Workshop: March 11-12http://indico.cern.ch/conferenceDisplay.py?confId=52786
Next workshop: CERN April 23-24http://indico.cern.ch/conferenceProgram.py?confId=54910
Common EU application towards end of 2009?Common middleware for LHC and other applications?
Towards a first implementation of UMD
Proposal2/3/2009
Farid Ould-Saada et al
F. Ould-Saada
Alex Read, Dept. of Physics
Summary
• Oslo participates in and leads a number of Nordic and European Grid projects
• The Norwegian contribution to WLCG is in good shape
• The utilization of the ARC-enabled resources is excellent– NDGF (distributed Tier-1) is a great success
• The Norwegian grid infrastructure for computational science is well-established and growing
• Grid activity in Oslo is strongly influencing the Norwegian, Nordic and European scenes
Alex Read, Dept. of PhysicsF. Ould-Saada
Distributed!
Alex Read, Dept. of Physics
ATLAS Production System
15
Task request interfaceprodDB: jobdefs, job states, metadata
Input: DQ2 datasetsTask states
Output: DQ2 datasets3 grids/10 Clouds
Monitor sites, tasks, jobs
Panda
Alex Read, Dept. of Physics
Tier-3 coming along
• Norwegian resources useful for LHC analysis (stallo, titan) are ARC-enabled
Alex Read, Dept. of Physics
ARC as part of EGI middleware
F. Ould-Saada
• NorduGrid participation in EGI_DS middleware task force• UMD session at NorduGrid 2008 conference, including panel discussion• UMD meeting, Rome December 2008• UMD meeting, Munich, February 2009• Oslo UMD workshop, 11-12 March 2009