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Storage Systems for I/O-Intensive Applications in Computational Chemistry

In: Sustained Simulation Performance 2015

Author

Listed:
  • Matthias Neuer

    (Ulm University)

  • Christian Mosch

    (Ulm University)

  • Jürgen Salk

    (Ulm University)

  • Karsten Siegmund

    (Ulm University)

  • Volodymyr Kushnarenko

    (Ulm University)

  • Stefan Kombrink

    (Ulm University)

  • Thomas Nau

    (Ulm University)

  • Stefan Wesner

    (Ulm University)

Abstract

Many programs in computational quantum chemistry need a fast storage system capable of serving more than 10,000 I/O operations per second while also being large enough to store the temporary files created by these applications. A good solution which fulfills both requirements is a hybrid approach consisting of a large network storage and small but very fast local SSDs. It was found that off-the-shelf SSD-based caching strategies did not perform satisfactorily for the applications investigated in this study. A better result can be achieved by concatenating the two storage systems via a RAID or even better via LVM. After taking care about the creation of the logical volume and the layout of the file system we could obtain 75 % of the performance gain of an SSD by using only 50 % SSD storage.

Suggested Citation

  • Matthias Neuer & Christian Mosch & Jürgen Salk & Karsten Siegmund & Volodymyr Kushnarenko & Stefan Kombrink & Thomas Nau & Stefan Wesner, 2015. "Storage Systems for I/O-Intensive Applications in Computational Chemistry," Springer Books, in: Michael M. Resch & Wolfgang Bez & Erich Focht & Hiroaki Kobayashi & Jiaxing Qi & Sabine Roller (ed.), Sustained Simulation Performance 2015, pages 51-60, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-20340-9_5
    DOI: 10.1007/978-3-319-20340-9_5
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