Cargando…

Experience Building and Operating the CMS Tier-1 Computing Centres

The CMS Collaboration relies on 7 globally distributed Tier-1 computing centres located at large universities and national laboratories for a second custodial copy of the CMS RAW data and primary copy of the simulated data, data serving capacity to Tier-2 centres for analysis, and the bulk of the re...

Descripción completa

Detalles Bibliográficos
Autores principales: Albert, M, Bakken, J, Bonacorsi, D, Brew, C, Charlot, C, Huang, Chih-Hao, Colling, D, Dumitrescu, C, Fagan, D, Fassi, F, Fisk, I, Flix, J, Giacchetti, L, Gomez-Ceballos, G, Gowdy, S, Grandi, C, Gutsche, O, Hahn, K, Holzman, B, Jackson, J, Kreuzer, P, Kuo, C M, Mason, D, Pukhaeva, N, Qin, G, Quast, G, Rossman, P, Sartirana, A, Scheurer, A, Schott, G, Shih, J, Tader, P, Thompson, R, Tiradani, A, Trunov, A
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/219/7/072035
http://cds.cern.ch/record/1196143
_version_ 1780917065028206592
author Albert, M
Bakken, J
Bonacorsi, D
Brew, C
Charlot, C
Huang, Chih-Hao
Colling, D
Dumitrescu, C
Fagan, D
Fassi, F
Fisk, I
Flix, J
Giacchetti, L
Gomez-Ceballos, G
Gowdy, S
Grandi, C
Gutsche, O
Hahn, K
Holzman, B
Jackson, J
Kreuzer, P
Kuo, C M
Mason, D
Pukhaeva, N
Qin, G
Quast, G
Rossman, P
Sartirana, A
Scheurer, A
Schott, G
Shih, J
Tader, P
Thompson, R
Tiradani, A
Trunov, A
author_facet Albert, M
Bakken, J
Bonacorsi, D
Brew, C
Charlot, C
Huang, Chih-Hao
Colling, D
Dumitrescu, C
Fagan, D
Fassi, F
Fisk, I
Flix, J
Giacchetti, L
Gomez-Ceballos, G
Gowdy, S
Grandi, C
Gutsche, O
Hahn, K
Holzman, B
Jackson, J
Kreuzer, P
Kuo, C M
Mason, D
Pukhaeva, N
Qin, G
Quast, G
Rossman, P
Sartirana, A
Scheurer, A
Schott, G
Shih, J
Tader, P
Thompson, R
Tiradani, A
Trunov, A
author_sort Albert, M
collection CERN
description The CMS Collaboration relies on 7 globally distributed Tier-1 computing centres located at large universities and national laboratories for a second custodial copy of the CMS RAW data and primary copy of the simulated data, data serving capacity to Tier-2 centres for analysis, and the bulk of the reprocessing and event selection capacity in the experiment. The Tier-1 sites have a challenging role in CMS because they are expected to ingest and archive data from both CERN and regional Tier-2 centres, while they export data to a global mesh of Tier-2s at rates comparable to the raw export data rate from CERN. The combined capacity of the Tier-1 centres is more than twice the resources located at CERN and efficiently utilizing this large distributed resources represents a challenge. In this article we will discuss the experience building, operating, and utilizing the CMS Tier-1 computing centres. We will summarize the facility challenges at the Tier-1s including the stable operations of CMS services, the ability to scale to large numbers of processing requests and large volumes of data, and the ability to provide custodial storage and high performance data serving. We will also present the operations experience utilizing the distributed Tier-1 centres from a distance: transferring data, submitting data serving requests, and submitting batch processing requests.
id cern-1196143
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-11961432019-09-30T06:29:59Zdoi:10.1088/1742-6596/219/7/072035http://cds.cern.ch/record/1196143engAlbert, MBakken, JBonacorsi, DBrew, CCharlot, CHuang, Chih-HaoColling, DDumitrescu, CFagan, DFassi, FFisk, IFlix, JGiacchetti, LGomez-Ceballos, GGowdy, SGrandi, CGutsche, OHahn, KHolzman, BJackson, JKreuzer, PKuo, C MMason, DPukhaeva, NQin, GQuast, GRossman, PSartirana, AScheurer, ASchott, GShih, JTader, PThompson, RTiradani, ATrunov, AExperience Building and Operating the CMS Tier-1 Computing CentresDetectors and Experimental TechniquesThe CMS Collaboration relies on 7 globally distributed Tier-1 computing centres located at large universities and national laboratories for a second custodial copy of the CMS RAW data and primary copy of the simulated data, data serving capacity to Tier-2 centres for analysis, and the bulk of the reprocessing and event selection capacity in the experiment. The Tier-1 sites have a challenging role in CMS because they are expected to ingest and archive data from both CERN and regional Tier-2 centres, while they export data to a global mesh of Tier-2s at rates comparable to the raw export data rate from CERN. The combined capacity of the Tier-1 centres is more than twice the resources located at CERN and efficiently utilizing this large distributed resources represents a challenge. In this article we will discuss the experience building, operating, and utilizing the CMS Tier-1 computing centres. We will summarize the facility challenges at the Tier-1s including the stable operations of CMS services, the ability to scale to large numbers of processing requests and large volumes of data, and the ability to provide custodial storage and high performance data serving. We will also present the operations experience utilizing the distributed Tier-1 centres from a distance: transferring data, submitting data serving requests, and submitting batch processing requests.CMS-CR-2009-092oai:cds.cern.ch:11961432009-05-08
spellingShingle Detectors and Experimental Techniques
Albert, M
Bakken, J
Bonacorsi, D
Brew, C
Charlot, C
Huang, Chih-Hao
Colling, D
Dumitrescu, C
Fagan, D
Fassi, F
Fisk, I
Flix, J
Giacchetti, L
Gomez-Ceballos, G
Gowdy, S
Grandi, C
Gutsche, O
Hahn, K
Holzman, B
Jackson, J
Kreuzer, P
Kuo, C M
Mason, D
Pukhaeva, N
Qin, G
Quast, G
Rossman, P
Sartirana, A
Scheurer, A
Schott, G
Shih, J
Tader, P
Thompson, R
Tiradani, A
Trunov, A
Experience Building and Operating the CMS Tier-1 Computing Centres
title Experience Building and Operating the CMS Tier-1 Computing Centres
title_full Experience Building and Operating the CMS Tier-1 Computing Centres
title_fullStr Experience Building and Operating the CMS Tier-1 Computing Centres
title_full_unstemmed Experience Building and Operating the CMS Tier-1 Computing Centres
title_short Experience Building and Operating the CMS Tier-1 Computing Centres
title_sort experience building and operating the cms tier-1 computing centres
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1742-6596/219/7/072035
http://cds.cern.ch/record/1196143
work_keys_str_mv AT albertm experiencebuildingandoperatingthecmstier1computingcentres
AT bakkenj experiencebuildingandoperatingthecmstier1computingcentres
AT bonacorsid experiencebuildingandoperatingthecmstier1computingcentres
AT brewc experiencebuildingandoperatingthecmstier1computingcentres
AT charlotc experiencebuildingandoperatingthecmstier1computingcentres
AT huangchihhao experiencebuildingandoperatingthecmstier1computingcentres
AT collingd experiencebuildingandoperatingthecmstier1computingcentres
AT dumitrescuc experiencebuildingandoperatingthecmstier1computingcentres
AT fagand experiencebuildingandoperatingthecmstier1computingcentres
AT fassif experiencebuildingandoperatingthecmstier1computingcentres
AT fiski experiencebuildingandoperatingthecmstier1computingcentres
AT flixj experiencebuildingandoperatingthecmstier1computingcentres
AT giacchettil experiencebuildingandoperatingthecmstier1computingcentres
AT gomezceballosg experiencebuildingandoperatingthecmstier1computingcentres
AT gowdys experiencebuildingandoperatingthecmstier1computingcentres
AT grandic experiencebuildingandoperatingthecmstier1computingcentres
AT gutscheo experiencebuildingandoperatingthecmstier1computingcentres
AT hahnk experiencebuildingandoperatingthecmstier1computingcentres
AT holzmanb experiencebuildingandoperatingthecmstier1computingcentres
AT jacksonj experiencebuildingandoperatingthecmstier1computingcentres
AT kreuzerp experiencebuildingandoperatingthecmstier1computingcentres
AT kuocm experiencebuildingandoperatingthecmstier1computingcentres
AT masond experiencebuildingandoperatingthecmstier1computingcentres
AT pukhaevan experiencebuildingandoperatingthecmstier1computingcentres
AT qing experiencebuildingandoperatingthecmstier1computingcentres
AT quastg experiencebuildingandoperatingthecmstier1computingcentres
AT rossmanp experiencebuildingandoperatingthecmstier1computingcentres
AT sartiranaa experiencebuildingandoperatingthecmstier1computingcentres
AT scheurera experiencebuildingandoperatingthecmstier1computingcentres
AT schottg experiencebuildingandoperatingthecmstier1computingcentres
AT shihj experiencebuildingandoperatingthecmstier1computingcentres
AT taderp experiencebuildingandoperatingthecmstier1computingcentres
AT thompsonr experiencebuildingandoperatingthecmstier1computingcentres
AT tiradania experiencebuildingandoperatingthecmstier1computingcentres
AT trunova experiencebuildingandoperatingthecmstier1computingcentres