1.
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Providing global WLCG transfer monitoring
/ Andreeva, J (CERN) ; Dieguez Arias, D (CERN) ; Campana, S (CERN) ; Flix, J (PIC, Bellaterra ; Madrid, CIEMAT) ; Flix, J (PIC, Bellaterra ; Madrid, CIEMAT) ; Keeble, O (CERN) ; Magini, N (CERN) ; Molnar, Z (CERN) ; Oleynik, D (Dubna, JINR) ; Petrosyan, A (Dubna, JINR) et al.
The WLCG[1] Transfers Dashboard is a monitoring system which aims to provide a global view of WLCG data transfers and to reduce redundancy in monitoring tasks performed by the LHC experiments. The system is designed to work transparently across LHC experiments and across the various technologies used for data transfer. [...]
2012
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012, pp.032005
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2.
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The LHC Tier1 at PIC: experience from first LHC run
/ Flix, J (Madrid, CIEMAT ; PIC, Bellaterra) ; Perez-Calero Yzquierdo, A (Madrid, CIEMAT ; PIC, Bellaterra) ; Acción, E (Barcelona, IFAE ; PIC, Bellaterra) ; Acin, V (Barcelona, IFAE ; PIC, Bellaterra) ; Acosta, C (Barcelona, IFAE ; PIC, Bellaterra) ; Bernabeu, G (Madrid, CIEMAT ; PIC, Bellaterra) ; Bria, A (Barcelona, IFAE ; PIC, Bellaterra) ; Casals, J (Madrid, CIEMAT ; PIC, Bellaterra) ; Caubet, M (Madrid, CIEMAT ; PIC, Bellaterra) ; Cruz, R (Barcelona, IFAE ; PIC, Bellaterra) et al.
This paper summarizes the operational experience of the Tier1 computer center at Port d’Informació Científica (PIC) supporting the commissioning and first run (Run1) of the Large Hadron Collider (LHC). The evolution of the experiment computing models resulting from the higher amounts of data expected after the restart of the LHC are also described..
2013
- Published in : EPJ Web Conf. 60 (2013) 20054
Published version, Open Access article: PDF;
In : 1st Large Hadron Collider Physics Conference, Barcelona, Spain, 13 - 18 May 2013, pp.20054
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3.
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FTS3: Quantitative Monitoring
/ Riahi, H (CERN) ; Salichos, M (CERN) ; Keeble, O (CERN) ; Andreeva, J (CERN) ; Ayllon, A A (CERN) ; Girolamo, A Di (CERN) ; Magini, N (Fermilab) ; Roiser, S (CERN) ; Simon, M K (CERN)
The overall success of LHC data processing depends heavily on stable, reliable and fast data distribution. The Worldwide LHC Computing Grid (WLCG) relies on the File Transfer Service (FTS) as the data movement middleware for moving sets of files from one site to another. [...]
2015 - 9 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 062051
IOP Open Access article: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.062051
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4.
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New monitoring applications in the experiment dashboard
/ Andreeva, Julia (CERN) ; Gaidioz, Benjamin (Dubna, JINR ) ; Maier, Gerhild (Dubna, JINR ) ; Ricardo, Rocha (Dubna, JINR ) ; Saiz, Pablo (Dubna, JINR ) ; Catalin, Cirstoui (Dubna, JINR ) ; Sidorova, Irina (Dubna, JINR ; Dubna, JINR ) ; Wakefield, Stuart (Dubna, JINR ) ; Herrala, Juha (Dubna, JINR )
The Experiment Dashboard is a monitoring system initially developed for the LHC experiments in order to provide the view of the Grid infrastructure from the perspective of the virtual organization. The presentation will focus on the recently developed applications, in particular monitoring systems for the Monte Carlo production for ATLAS and CMS experiments. [...]
2008
In : 3rd EGEE User Forum, Clermont-Ferrand, France, 11 - 14 Feb 2008, pp.77
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5.
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Dashboard for the LHC experiments
/ Andreeva, Julia (CERN) ; Belov, S (Dubna, JINR) ; Berejnoj, A (Moscow State U.) ; Cirstoiu, C. (CERN ; Bucharest, Polytechnic Inst.) ; Chen, Y (Taiwan, Inst. Phys.) ; Chen, T (Taiwan, Inst. Phys.) ; Chiu, S (Taiwan, Inst. Phys.) ; De Francisco De Miguel, M (CERN) ; Ivanchenko, A (CERN) ; Gaidioz, B (CERN) et al.
/PSS
In this paper we present the Experiment Dashboard monitoring system, which is currently in use by four Large Hadron Collider (LHC)[1] experiments. The goal of the Experiment Dashboard is to monitor the activities of the LHC experiments on the distributed infrastructure, providing monitoring data from the virtual organization (VO) and user perspectives. [...]
2008
Fulltext: DOC;
In : International Conference on Computing in High Energy and Nuclear Physics, Victoria, Canada, 2 - 7 Sep 2007, pp.062008
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6.
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Getting prepared for the LHC Run2: the PIC Tier-1 case
/ Flix, J (PIC, Bellaterra ; Madrid, CIEMAT) ; Acción, E (PIC, Bellaterra ; Barcelona, IFAE) ; Acín, V (PIC, Bellaterra ; Barcelona, IFAE) ; Acosta, C (PIC, Bellaterra ; Barcelona, IFAE) ; Casals, J (PIC, Bellaterra ; Madrid, CIEMAT) ; Caubet, M (PIC, Bellaterra ; Madrid, CIEMAT) ; Cruz, R (PIC, Bellaterra ; Barcelona, IFAE) ; Delfino, M (PIC, Bellaterra ; Barcelona, Autonoma U.) ; López, F (PIC, Bellaterra ; Madrid, CIEMAT) ; Pacheco, A (PIC, Bellaterra ; Barcelona, IFAE) et al.
The Large Hadron Collider (LHC) experiments will collect unprecedented data volumes in the next Physics run, with high pile-up collisions resulting in events that require a complex processing. Hence, the collaborations have been required to update their Computing Models to optimize the use of the available resources and control the growth of resources, in the midst of widespread funding restrictions, without penalizing any of the Physics objectives. [...]
2015 - 8 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 052014
IOP Open Access article: PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.052014
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7.
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Integrating network and transfer metrics to optimize transfer efficiency and experiment workflows
/ McKee, S (Michigan U., MCTP) ; Babik, M (CERN) ; Campana, S (CERN) ; Girolamo, A Di (CERN) ; Wildish, T (CERN) ; Closier, J (CERN) ; Roiser, S (CERN) ; Grigoras, C (CERN) ; Vukotic, I (CERN) ; Salichos, M (CERN) et al.
The Worldwide LHC Computing Grid relies on the network as a critical part of its infrastructure and therefore needs to guarantee effective network usage and prompt detection and resolution of any network issues, including connection failures, congestion, traffic routing, etc. The WLCG Network and Transfer Metrics project aims to integrate and combine all network-related monitoring data collected by the WLCG infrastructure. [...]
2015 - 8 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 052003
IOP Open Access article: Integrating network and transfer metrics to optimize transfer efficiency and experiment workflows - PDF; pdf - PDF;
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.052003
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8.
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Debugging Data Transfers in CMS
/ Bagliesi, G (INFN, Pisa ; CERN) ; Belforte, S (INFN, Trieste) ; Bloom, K (Nebraska U.) ; Bockelman, B (Nebraska U.) ; Bonacorsi, D (Bologna U. ; INFN, Bologna) ; Fisk, I (Fermilab) ; Flix, J (PIC, Bellaterra ; Madrid, CIEMAT) ; Hernandez, J (Madrid, CIEMAT) ; D'Hondt, J (Vrije U., Brussels) ; Kadastik, M (NICPB, Tallinn) et al.
The CMS experiment at CERN is preparing for LHC data taking in several computing preparation activities. In early 2007 a traffic load generator infrastructure for distributed data transfer tests called the LoadTest was designed and deployed to equip the WLCG sites that support CMS with a means for debugging, load-testing and commissioning data transfer routes among CMS computing centres. [...]
CMS-CR-2009-093.-
Geneva : CERN, 2010 - 11 p.
- Published in : J. Phys.: Conf. Ser. 219 (2010) 062055
Fulltext: PDF;
In : 17th International Conference on Computing in High Energy and Nuclear Physics, Prague, Czech Republic, 21 - 27 Mar 2009, pp.062055
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9.
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Dashboard applications to monitor experiment activities at sites
/ Andreeva, J (CERN) ; Belforte, S (INFN, Trieste) ; Boehm, M (Hewlett-Packard) ; Casajus, A (Barcelona U.) ; Flix, J (PIC, Bellaterra) ; Gaidioz, B (CERN) ; Grigoras, C (CERN) ; Kokoszkiewicz, L (CERN) ; Lanciotti, E (CERN) ; Rocha, R (CERN) et al.
In the framework of a distributed computing environment, such as WLCG, monitoring has a key role in order to keep under control activities going on in sites located in different countries and involving people based in many different sites. To be able to cope with such a large scale heterogeneous infrastructure, it is necessary to have monitoring tools providing a complete and reliable view of the overall performance of the sites. [...]
2010
- Published in : J. Phys.: Conf. Ser. 219 (2010) 062003
In : 17th International Conference on Computing in High Energy and Nuclear Physics, Prague, Czech Republic, 21 - 27 Mar 2009, pp.062003
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10.
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Bringing the CMS distributed computing system into scalable operations
/ Belforte, S (INFN, Trieste) ; Fanfani, A (INFN, Bologna) ; Fisk, I (Fermilab) ; Flix, J (PIC, Bellaterra ; Madrid, CIEMAT) ; Hernández, J M (Madrid, CIEMAT) ; Kress, T (Aachen, Tech. Hochsch.) ; Letts, J (UC, San Diego) ; Magini, N (CERN ; INFN, CNAF) ; Miccio, V (INFN, Milan) ; Sciabà , A (CERN)
Establishing efficient and scalable operations of the CMS distributed computing system critically relies on the proper integration, commissioning and scale testing of the data and workload management tools, the various computing workflows and the underlying computing infrastructure, located at more than 50 computing centres worldwide and interconnected by the Worldwide LHC Computing Grid. Computing challenges periodically undertaken by CMS in the past years with increasing scale and complexity have revealed the need for a sustained effort on computing integration and commissioning activities. [...]
CMS-CR-2009-087.-
Geneva : CERN, 2010 - 11 p.
- Published in : J. Phys.: Conf. Ser. 219 (2010) 062015
Fulltext: PDF;
In : 17th International Conference on Computing in High Energy and Nuclear Physics, Prague, Czech Republic, 21 - 27 Mar 2009, pp.062015
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