StressBench: A Configurable Full System Network and I/O Benchmark Framework

Dean Chester, Taylor Groves, Simon D. Hammond, Timothy R. Law, Steven A. Wright, Richard Smedley-Stevenson, Suhaib A. Fahmy, Gihan R. Mudalige, Stephen Jarvis

Research output: Contribution to conferencePaperpeer-review


We present StressBench, a network benchmarking framework written for testing MPI operations and file I/O concurrently. It is designed specifically to execute MPI communication and file access patterns that are representative of real-world scientific applications. Existing tools consider either the worst case congestion with small abstract patterns or peak performance with simplistic patterns. StressBench allows for a richer study of congestion by allowing orchestration of network load scenarios that are representative of those typically seen at HPC centres, something that is difficult to achieve with existing tools. We demonstrate the versatility of the framework from microbenchmarks through to finely controlled congested runs across a cluster. Validation of the results using four proxy application communication schemes within StressBench against parent applications shows a maximum difference of 15%. Using the I/O modeling capabilities of StressBench, we are able to quantify the impact of file I/O on application traffic showing how it can be used in procurement and performance studies.
Original languageEnglish
Number of pages8
Publication statusPublished - 22 Sept 2021
EventIEEE High Performance Extreme Computing Conference -
Duration: 20 Sept 202124 Sept 2021
Conference number: 25


ConferenceIEEE High Performance Extreme Computing Conference
Abbreviated titleHPEC
Internet address

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