Contribution to a conference proceedings

FZJ-2016-02488

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Extreme-scaling Applications 24/7 on JUQUEEN Blue Gene/Q

Brömmel, D. (Corresponding author)FZJ* ; Frings, W.FZJ* ; Wylie, B. J. N.FZJ*

2016
IOS Press Amsterdam

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Please use a persistent id in citations: http://hdl.handle.net/2128/10762  doi:10.3233/978-1-61499-621-7-817

Abstract: 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.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)
2. ATMLPP - ATML Parallel Performance (ATMLPP) (ATMLPP)

Appears in the scientific report 2016

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Database coverage:

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