WLCG Tier-2 site in Prague: a little bit of history, current status and future perspectives

Adamová, D.; Chudoba, J.; Eliáš, Marek; Fiala, Lukáš; Kouba, T.; Lokajı́ček, M.; Švec, Ján

doi:10.1088/1742-6596/608/1/012035

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…The authors are thankful to Dalibor Nosek and Petr Trávníček for their invaluable advice and suggestions, as well as to members of the Pierre Auger Collaboration for their helpful comments. We appreciate access to computational resources provided by Computing center of the Institute of Physics of CAS [36] and supported by project LG13007.…”

Section: Acknowledgementsmentioning

confidence: 99%

Soft particle production in very high energy hadron interactions

Ebr

Nečesal

Řídký

2017

Astroparticle Physics

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Indications of a discrepancy between simulations and data on the number of muons in cosmic ray (CR) showers exist over a large span of energies. We focus in particular on the excess of multi-muon bundles observed by the DELPHI detector at LEP and on the excess in the muon number in general reported by the Pierre Auger Observatory. Even though the primary CR energies relevant for these experiments differ by orders of magnitude, we can find a single mechanism which can simultaneously increase predicted muon counts for both, while not violating constraints from accelerators or from the longitudinal shower development as observed by the Pierre Auger Observatory. We present a brief motivation and describe a practical implementation of such a model, based on

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Section: Acknowledgementsmentioning

confidence: 99%

Soft particle production in very high energy hadron interactions

Ebr

Nečesal

Řídký

2017

Astroparticle Physics

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“…Besides one 10Gbps direct link to CERN, DE-KIT has three 10Gbps direct connections to Worldwide Large Hadron Collider Grid -Tier1 (WLCG-Tier-1) centers in Europe and two dedicated links to WLCGTier-2 [23] centers in Europe, FZU [24] in Czech Republic (Prague) and a dedicated link to one WLCG-Tier-2 center (Poznan) in Poland; this last link connects the center in Poznan and two other Polish WLCG-Tier-2 centers. The direct link to CERN was frequently saturated above 75% utilization, i.e.…”

Section: 1current Deployment Of a 10gbps Based Networkmentioning

confidence: 99%

100 Gbps connection to the Large Hadron Collider Open Network Exchange (LHCONE), a virtual private network of the LHC Community for example the German collaborator DE-KIT

Hoeft¹,

Petzold²

2017

Proceedings of International Symposium on Grids and Clouds (ISGC) 2016 — PoS(ISGC 2016)

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To provide the file server and the compute nodes with adequate network bandwidth the 10Gbps network of Karlsruhe Institute of Technology (KIT) [1] does not offer the required capacities. KIT is a collaborator of the Large Hadron Collider (LHC) [2] and their throughput requirements are not able to become realised with the current network capacities. The upgrade of the project GridKa/DE-KIT 2 , the considerations leading to the upgrade as well as some of the problems undergone while walking through the 100Gbps network upgrade are discussed.

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