Visualizing Hierarchical Performance Profiles of Parallel Codes Using CallFlow

Huu Tan Nguyen; Abhinav Bhatele; Nikhil Jain; Suraj P. Kesavan; Harsh Bhatia; Todd Gamblin; Kwan Liu Ma; Peer Timo Bremer

doi:10.1109/TVCG.2019.2953746

Visualizing Hierarchical Performance Profiles of Parallel Codes Using CallFlow

Huu Tan Nguyen, Abhinav Bhatele, Nikhil Jain, Suraj P. Kesavan, Harsh Bhatia, Todd Gamblin, Kwan Liu Ma, Peer Timo Bremer

Computer Science

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Calling context trees (CCTs) couple performance metrics with call paths, helping understand the execution and performance of parallel programs. To identify performance bottlenecks, programmers and performance analysts visually explore CCTs to form and validate hypotheses regarding degraded performance. However, due to the complexity of parallel programs, existing visual representations do not scale to applications running on a large number of processors. We present CallFlow, an interactive visual analysis tool that provides a high-level overview of CCTs together with semantic refinement operations to progressively explore CCTs. Using a flow-based metaphor, we visualize a CCT by treating execution time as a resource spent during the call chain, and demonstrate the effectiveness of our design with case studies on large-scale, production simulation codes.

Original language	English (US)
Article number	8901998
Pages (from-to)	2455-2468
Number of pages	14
Journal	IEEE Transactions on Visualization and Computer Graphics
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TVCG.2019.2953746
State	Published - Apr 1 2021

Keywords

coordinated and multiple views
hierarchical data
Performance analysis
software visualization
visual analytics

ASJC Scopus subject areas

Software
Signal Processing
Computer Vision and Pattern Recognition
Computer Graphics and Computer-Aided Design

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10.1109/TVCG.2019.2953746

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Visualizing Hierarchical Performance Profiles of Parallel Codes Using CallFlow. / Nguyen, Huu Tan; Bhatele, Abhinav; Jain, Nikhil; Kesavan, Suraj P.; Bhatia, Harsh; Gamblin, Todd; Ma, Kwan Liu; Bremer, Peer Timo.

In: IEEE Transactions on Visualization and Computer Graphics, Vol. 27, No. 4, 8901998, 01.04.2021, p. 2455-2468.

Research output: Contribution to journal › Article › peer-review

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Visualizing Hierarchical Performance Profiles of Parallel Codes Using CallFlow

Abstract

Keywords

ASJC Scopus subject areas

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