Identifying latent scalability bugs with Extra-P
Channel: HPC NRW
Date: 2022-02-24

In this video Marcus Ritter of TU Darmstadt introduce the performance modelling tool Extra-P and explains how to identify latent scalability bugs in your code.

This video is part of the #HPC.NRW Tool Talks series, that presented introductory talks to software development tools for HPC applications. The videos are live recordings of online presentations.

0:00 Introduction
6:37 The performance model normal form
12:01 Assumptions and limitations
13:42 Changing growth trends
15:55 Taking performance measurements
19:03 Statistical quality control
21:55 Multi-parameter modeling
24:15 Reduce Measurements with Sparse Modeling
31:12 Using Extra-P: Requirements and Basic Info
34:32 Measurement Workflow
36:35 Using Cube input description
38:04 Model visualization
44:27 Using general text input
48:10 The Extra-P command line tool
50:42 Conclusion