Updates on usage of the Czech national HPC center
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00548761" target="_blank" >RIV/68378271:_____/21:00548761 - isvavai.cz</a>
Result on the web
<a href="https://www.epj-conferences.org/articles/epjconf/pdf/2021/05/epjconf_chep2021_02008.pdf" target="_blank" >https://www.epj-conferences.org/articles/epjconf/pdf/2021/05/epjconf_chep2021_02008.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/202125102008" target="_blank" >10.1051/epjconf/202125102008</a>
Alternative languages
Result language
angličtina
Original language name
Updates on usage of the Czech national HPC center
Original language description
The distributed computing of the ATLAS experiment at LHC has used computing resources of the Czech national HPC center IT4Innovations for several years. The submission system is based on ARC-CEs installed at the Czech Tier2 site (praguelcg2). Recent improvements of this system will be discussed here. First, there was a migration of the ARC-CE from version 5 to 6 which improves the reliability and scalability. A shared filesystem built on top of sshfs 3.7 no longer represents performance bottleneck. It provided an order of magnitude better transfer performance. New Singularity containers with full software stack can easily fit default resource limits on the IT4I cluster filesystem. A new submission system, allowing sequential running of payloads in one job, was set and adapted to HPC’s environment, improving usage on worker nodes with very high number of cores. Overall, the whole infrastructure provides significant contribution to resources provided by praguelcg2.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20205 - Automation and control systems
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
EPJ Web of Conferences
ISBN
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ISSN
2100-014X
e-ISSN
2100-014X
Number of pages
7
Pages from-to
02008
Publisher name
EDP Sciences
Place of publication
Les Ulis
Event location
Virtual Event
Event date
May 17, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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