Regional Profiling for Efficient Performance Optimization

Florent Lebeau (), Patrick Wohlschlegel () and Olly Perks ()
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Florent Lebeau: Arm
Patrick Wohlschlegel: Arm
Olly Perks: Arm

A chapter in Tools for High Performance Computing 2018 / 2019, 2021, pp 183-193 from Springer

Abstract: Abstract Performance profiling and debugging are critical components in the HPC application development workflow, ensuring efficient utilization of hardware resources and correctness of solution. Having strong tools to underpin these requirements enables better software development and more efficient execution. The Arm Forge tool suite has long been recognized as industry leading within HPC, for delivering real world usability and actionable information. However, performance engineering is a moving target—due to changes in the HPC ecosystem, such as hardware, software and user workflow. As such the Arm Forge tools are in constant development—to adapt to, and exploit, the latest use cases. One such emerging use case is domain-specific contextual information, in the form of user annotations which can be embedded within performance profiles. Through a collaboration with Lawrence Livermore National Laboratory (LLNL), and their open-source Caliper tool, Arm was able to develop this concept into a fully integrated user workflow. This article will introduce Arm Forge’s latest feature on regional profiling and how it complements the more traditional, and established, optimization methodology.

Date: 2021
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DOI: 10.1007/978-3-030-66057-4_10

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