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ATLAS 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%2F19%3A00339914" target="_blank" >RIV/68407700:21340/19:00339914 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1051/epjconf/201921403005" target="_blank" >https://doi.org/10.1051/epjconf/201921403005</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1051/epjconf/201921403005" target="_blank" >10.1051/epjconf/201921403005</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    ATLAS utilisation of the Czech national HPC center

  • Original language description

    The Czech national HPC center IT4Innovations located in Ostrava provides two HPC systems, Anselm and Salomon. The Salomon HPC is amongst the hundred most powerful supercomputers on Earth since its commissioning in 2015. Both clusters were tested for usage by the ATLAS experiment for running simulation jobs. Several thousand core hours were allocatedto the project for tests, but the main aim is to use free resources waitigfor large parallel jobs of other users. Multiple strategies for ATLAS job execution were tested on the Salomon and Anselm HPCs. The solution described herein is based on the ATLAS experience with other HPC sites. ARC Compute Element (ARCCE) installed at the grid site in Prague is used for job submission to Salomon. The ATLAS production system submits jobs to the ARC-Evia ARC Control Tower (aCT). The ARC-CE processes job requirements from aTand creates a script for a batch system which is then executed via ssh. Sshfs is used to share scripts and input files between the site and the HPC cluster. The software used to run jobs is rsynced from the site's CVMFS installation to the HPC's scratch space every day to ensure availabiliy of recent software. Using this setting, opportunistic capacity of the Salomon HPC was exploited.

  • Czech name

  • Czech description

Classification

  • Type

    O - Miscellaneous

  • 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/LM2015058" target="_blank" >LM2015058: Research Infrastructure for Experiments at CERN</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2019

  • Confidentiality

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