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Improvements in utilisation 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%2F20%3A00347150" target="_blank" >RIV/68407700:21340/20:00347150 - isvavai.cz</a>

  • Alternative codes found

    RIV/68378271:_____/20:00538582

  • Result on the web

    <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>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Improvements in utilisation of the Czech national HPC center

  • Original language description

    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.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

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

Result continuities

  • Project

    <a href="/en/project/LM2018104" target="_blank" >LM2018104: Research Infrastructure for experiments at CERN</a><br>

  • Continuities

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

Others

  • Publication year

    2020

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

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

  • ISBN

  • ISSN

    2100-014X

  • e-ISSN

    2100-014X

  • Number of pages

    7

  • Pages from-to

  • Publisher name

    EPJ Web of Conferences

  • Place of publication

  • Event location

    Adelaide

  • Event date

    Nov 4, 2019

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000652214300345