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Medientyp:
Elektronischer Konferenzbericht
Titel:
Extreme-scaling Applications 24/7 on JUQUEEN Blue Gene/Q
Beteiligte:
Brömmel, Dirk
[Verfasser:in];
Frings, Wolfgang
[Verfasser:in];
Wylie, Brian J. N.
[Verfasser:in]
Erschienen:
IOS Press, 2016
Erschienen in:Amsterdam : IOS Press, Advances in Parallel Computing 27, 817-826 (2016). doi:10.3233/978-1-61499-621-7-817 ; Parallel Computing: On the Road to Exascale ; Parallel Computing: On the Road to Exascale International Conference on Parallel Computing, ParCo, Edinburgh, United Kingdom, 2015-09-01 - 2015-09-04
Anmerkungen:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Beschreibung:
Jülich Supercomputing Centre has offered Extreme Scaling Workshops since 2009, with the latest edition in February 2015 giving seven international code teams an opportunity to (im)prove the scaling of their applications to all 458752 cores of the JUQUEEN IBM BlueGene/Q. Each of them successfully adapted their application codes and datasets to the restricted compute-node memory and exploit the massive parallelism with up to 1.8 million processes or threads. They thereby qualified to become members of the High-Q Club which now has over 24 codes demonstrating extreme scalability. Achievements in both strong and weak scaling are compared, and complemented with a review of program languages and parallelisation paradigms, exploitation of hardware threads, and file I/O requirements.