An interactive plot of a ScrubJay-derived data set shows active bandwidth on different networking interfaces for each node in a cluster. The raw data set contains the number of bytes transferred over time, from which ScrubJay obtains bandwidth per node. This information helps analysts determine how much available bandwidth is being used over prolonged periods of time.
(Download Image)A bird's-eye view of computing performance
LLNL’s HPC center runs 24 hours a day, 7 days a week. HPC performance data is collected from many different sources within the facility and includes metrics on network utilization, rack temperature and humidity, power consumption, application runtimes, and message routing. Such information is essential for understanding how efficiently the facility operates. The analysis tool ScrubJay—named for the resourceful bird that memorizes scattered locations of food caches—automates and simplifies performance data analysis, helping analysts better understand interactions between applications and the complex systems within the HPC center. Read more at Science & Technology Review.
