Contribution to a conference proceedings

FZJ-2016-02457

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Separating the wheat from the chaff: Identifying Relevant and Similar Performance Data with Visual Analytics

von Rüden, L. ; Hermanns, M.-A.FZJ* ; Behrisch, M. ; Keim, D. ; Mohr, B.FZJ* ; Wolf, F.

2015
ACM Press New York, New York, USA

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Please use a persistent id in citations: doi:10.1145/2835238.2835242

Abstract: Performance-analysis tools are indispensable for understanding and optimizing the behavior of parallel programs running on increasingly powerful supercomputers. However, with size and complexity of hardware and software on the rise, performance data sets are becoming so voluminous that their analysis poses serious challenges. In particular, the search space that must be traversed and the number of individual performance views that must be explored to identify phenomena of interest becomes too large. To mitigate this problem, we use visual analytics. Specifically, we accelerate the analysis of performance profiles by automatically identifying (1) relevant and (2) similar data subsets and their performance views. We focus on views of the virtual-process topology, showing that their relevance can be well captured with visual-quality metrics and that they can be further assigned to topical groups according to their visual features. A case study demonstrates that our approach helps reduce the search space by up to 80%.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)
2. JARA - HPC (JARA-HPC)

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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