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Investigating Data Access Models for ATLAS: A Case Study with FABRIC Across Borders and ServiceX
/ Vukotic, Ilija (University of Chicago (US)) ; Bryant, Lincoln (University of Chicago (US)) ; Gardner Jr, Robert William (University of Chicago (US)) ; Mc Kee, Shawn (University of Michigan (US)) ; Stephen, Judith Lorraine (University of Chicago (US)) ; Jordan, David Allen (University of Chicago (US))
/ATLAS Collaboration
This study explores enhancements in analysis speed, WAN bandwidth efficiency, and data storage management through an innovative data access strategy. The proposed model introduces specialized ‘delivery’ services for data preprocessing, which include filtering and reformatting tasks executed on dedicated hardware located alongside the data repositories at CERN’s Tier-0, Tier-1, or Tier-2 facilities. [...]
ATL-SOFT-SLIDE-2024-547.-
Geneva : CERN, 2024 - 1 p.
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024
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Building Scalable Analysis Infrastructure for ATLAS
/ Gardner Jr, Robert William (University of Chicago (US)) ; Lancon, Eric (Brookhaven National Laboratory (US)) ; Vukotic, Ilija (University of Chicago (US)) ; Bryant, Lincoln (University of Chicago (US)) ; Golnaraghi, Farnaz (University of Chicago (US)) ; Stephen, Judith Lorraine (University of Chicago (US)) ; Taylor, Ryan (University of Victoria (CA)) ; Hu, Fengping (University of Chicago (US))
/ATLAS Collaboration
We explore the adoption of cloud-native tools and principles to forge flexible and scalable infrastructures, aimed at supporting analysis frameworks being developed for the ATLAS experiment in the High Luminosity Large Hadron Collider (HL-LHC) era. The project culminated in the creation of a federated platform, integrating Kubernetes clusters from various providers such as Tier-2 centers, Tier-3 centers, and from the IRIS-HEP Scalable Systems Laboratory, a National Science Foundation project. [...]
ATL-SOFT-SLIDE-2024-560.-
Geneva : CERN, 2024
Fulltext: PDF; External link: Original Communication (restricted to ATLAS)
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Role of Tier-0, Tier-1 and Tier-2 Regional Centers in CMS DC04
/ Barrass, T (Bristol U.) ; Metson, S (Bristol U.) ; Andreeva, J (CERN) ; Jank, W (CERN) ; Sinanis, N (CERN) ; Colino, N (Madrid, CIEMAT) ; García-Abia, P (Madrid, CIEMAT) ; Hernández, J M (Madrid, CIEMAT) ; Rodríguez-Calonge, F J (Madrid, CIEMAT) ; Ernst, M (DESY) et al.
The CMS 2004 Data Challenge (DC04) was devised to test several key aspects of the CMS Computing Model in three ways: by trying to sustain a 25 Hz reconstruction rate at the Tier-0; by distributing the reconstructed data to six Tier-1 Regional Centers (CNAF in Italy, FNAL in US, GridKA in Germany, IN2P3 in France, PIC in Spain, RAL in UK) and handling catalogue issues; by redistributing data to Tier-2 centers for analysis. Simulated events, up to the digitization step, were produced prior to the DC as input for the reconstruction in the Pre-Challenge Production (PCP04). [...]
CMS-CR-2004-054.-
Geneva : CERN, 2005
Access to PDF: PDF; Access to PostScript: PS.Z; Published version from CERN: PDF;
In : Computing in High Energy Physics and Nuclear Physics 2004, Interlaken, Switzerland, 27 Sep - 1 Oct 2004, pp.1065 (CERN-2005-002)
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Tier-1 and Tier-2 real-time analysis experience in CMS Data Challenge 2004
/ De Filippis, N (Bari U. ; Bari Polytechnic ; INFN, Bari) ; Donvito, G (Bari U. ; Bari Polytechnic ; INFN, Bari) ; Pierro, A (Bari U. ; Bari Polytechnic ; INFN, Bari) ; Silvestris, L (Bari U. ; Bari Polytechnic ; INFN, Bari) ; Fanfani, A (INFN, Bologna ; Bologna U.) ; Grandi, C (Bologna U. ; INFN, Bologna) ; Hernández, J M (Madrid, CIEMAT) ; Bonacorsi, D (INFN, Bologna ; INFN, CNAF) ; Corvo, M (INFN, Padua) ; Fanzago, F (INFN, Padua)
During the CMS Data Challenge 2004 a real-time analysis was attempted at INFN and PIC Tier-1 and Tier-2s in order to test the ability of the instrumented methods to quickly process the data. Several agents and automatic procedures were implemented to perform the analysis at the Tier-1/2 synchronously with the data transfer from Tier-0 at CERN. [...]
CMS-CR-2004-048.-
Geneva : CERN, 2005
Fulltext: PDF PS.Z; Published version from CERN: PDF;
In : Computing in High Energy Physics and Nuclear Physics 2004, Interlaken, Switzerland, 27 Sep - 1 Oct 2004, pp.1127-1130 (CERN-2005-002)
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