Improvements in utilisation of the Czech national HPC center

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00347150" target="_blank" >RIV/68407700:21340/20:00347150 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/20:00538582

Výsledek na webu

<a href="https://doi.org/10.1051/epjconf/202024509010" target="_blank" >https://doi.org/10.1051/epjconf/202024509010</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/202024509010" target="_blank" >10.1051/epjconf/202024509010</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improvements in utilisation of the Czech national HPC center

Popis výsledku v původním jazyce

The distributed computing system of the ATLAS experiment at LHC is allowed to opportunistically use resources at the Czech national HPC center IT4Innovations in Ostrava. The jobs are submitted via an ARC Compute Element (ARC-CE) installed at the grid site in Prague. Scripts and input files are shared between the ARC-CE and a shared file system located at the HPC centre via sshfs. This basic submission system has worked there since the end of 2017. Several improvements were made to increase the amount of resource that ATLAS can use. The most significant change was the migration of the submission system to enable pre-emptable jobs, to adapt to the HPC management’s decision to start pre-empting opportunistic jobs. Another improvement of the submission system was related to the sshfs connection which seemed to be a limiting factor of the system. Now, the submission system consists of several ARC-CE machines. Also, various parameters of sshfs were tested in an attempt to increase throughput. As a result of the improvements, the utilisation of the Czech national HPC center by the ATLAS distributed computing increased.

Název v anglickém jazyce

Improvements in utilisation of the Czech national HPC center

Popis výsledku anglicky

The distributed computing system of the ATLAS experiment at LHC is allowed to opportunistically use resources at the Czech national HPC center IT4Innovations in Ostrava. The jobs are submitted via an ARC Compute Element (ARC-CE) installed at the grid site in Prague. Scripts and input files are shared between the ARC-CE and a shared file system located at the HPC centre via sshfs. This basic submission system has worked there since the end of 2017. Several improvements were made to increase the amount of resource that ATLAS can use. The most significant change was the migration of the submission system to enable pre-emptable jobs, to adapt to the HPC management’s decision to start pre-empting opportunistic jobs. Another improvement of the submission system was related to the sshfs connection which seemed to be a limiting factor of the system. Now, the submission system consists of several ARC-CE machines. Also, various parameters of sshfs were tested in an attempt to increase throughput. As a result of the improvements, the utilisation of the Czech national HPC center by the ATLAS distributed computing increased.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

<a href="/cs/project/LM2018104" target="_blank" >LM2018104: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 24rd International Conference on Computing in High Energy and Nuclear Physics (CHEP 2019)

ISBN

—

ISSN

2100-014X

e-ISSN

2100-014X

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

EPJ Web of Conferences

Místo vydání

—

Místo konání akce

Adelaide

Datum konání akce

4. 11. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000652214300345