2 research outputs found
A Visual Analytics Framework for Reviewing Streaming Performance Data
Understanding and tuning the performance of extreme-scale parallel computing
systems demands a streaming approach due to the computational cost of applying
offline algorithms to vast amounts of performance log data. Analyzing large
streaming data is challenging because the rate of receiving data and limited
time to comprehend data make it difficult for the analysts to sufficiently
examine the data without missing important changes or patterns. To support
streaming data analysis, we introduce a visual analytic framework comprising of
three modules: data management, analysis, and interactive visualization. The
data management module collects various computing and communication performance
metrics from the monitored system using streaming data processing techniques
and feeds the data to the other two modules. The analysis module automatically
identifies important changes and patterns at the required latency. In
particular, we introduce a set of online and progressive analysis methods for
not only controlling the computational costs but also helping analysts better
follow the critical aspects of the analysis results. Finally, the interactive
visualization module provides the analysts with a coherent view of the changes
and patterns in the continuously captured performance data. Through a
multi-faceted case study on performance analysis of parallel discrete-event
simulation, we demonstrate the effectiveness of our framework for identifying
bottlenecks and locating outliers.Comment: This is the author's preprint version that will be published in
Proceedings of IEEE Pacific Visualization Symposium, 202