SC is the International Conference for
 High Performnance Computing, Networking, Storage and Analysis

SCHEDULE: NOV 13-19, 2010

Performance Tuning of Scientific Applications on HPC Systems

SESSION: Research Poster Reception

EVENT TYPE: Poster

TIME: 5:15PM - 7:00PM

AUTHOR(S):Michele Weiland, Jason Beech-Brandt, Charles Henriet, Eric Michele, Nils Smeds, Luigi Brochard

ROOM:Main Lobby

ABSTRACT:
The HPC landscape is undergoing significant changes and will become increasingly complex over the coming years. The assessment of the real-life performance of HPC systems through application benchmarking is thus becoming ever more important. In a collaborative effort between DEISA, Cray and IBM, this paper looks at the effect of in-depth performance tuning of scientific applications on current hardware. The aim is to highlight current knowledge gaps and find the focus for training and education going forward. This includes understanding both science- and user-driven requirements for default machine configurations. Our results show that, while the default machine configurations achieve largely acceptable performance, users can potentially see significant benefit from relatively basic tuning.

Chair/Author Details:

Michele Weiland - Edinburgh Parallel Computing Centre

Jason Beech-Brandt - Cray Inc.

Charles Henriet - Cray Inc.

Eric Michele - IBM

Nils Smeds - IBM

Luigi Brochard - IBM

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