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%2F68407700%3A21340%2F21%3A00382277" target="_blank" >RIV/68407700:21340/21:00382277 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/21:00548761
Result on the web
<a href="https://doi.org/10.1051/epjconf/202125102008" target="_blank" >https://doi.org/10.1051/epjconf/202125102008</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 A shared filesystem built on top of sshfs 3.7 no longer represents performance bottleneck.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 HPCs 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
20206 - Computer hardware and architecture
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
25th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2021)
ISBN
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ISSN
2100-014X
e-ISSN
2100-014X
Number of pages
7
Pages from-to
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Publisher name
EDP Sciences
Place of publication
Les Ulis
Event location
Geneva
Event date
May 17, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001329391600016