Updates on usage of the Czech national HPC center

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/68378271:_____/21:00548761

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Updates on usage of the Czech national HPC center

Popis výsledku v původním jazyce

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 A shared filesystem built on top of sshfs 3.7 no longer represents performance bottleneck.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.

Název v anglickém jazyce

Updates on usage of the Czech national HPC center

Popis výsledku anglicky

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 A shared filesystem built on top of sshfs 3.7 no longer represents performance bottleneck.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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20206 - Computer hardware and architecture

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

25th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2021)

ISBN

—

ISSN

2100-014X

e-ISSN

2100-014X

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

EDP Sciences

Místo vydání

Les Ulis

Místo konání akce

Geneva

Datum konání akce

17. 5. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001329391600016