1. I/O Access Patterns in HPC Applications: A 360-Degree Survey
- Author
-
Bez, Jean Luca, Byna, Suren, and Ibrahim, Shadi
- Subjects
Information and Computing Sciences ,Software Engineering ,Generic health relevance ,I/O access pattern ,HPC I/O ,storage ,I/O characterization ,Information Systems ,Information and computing sciences - Abstract
The high-performance computing I/O stack has been complex due to multiple software layers, the inter-dependencies among these layers, and the different performance tuning options for each layer. In this complex stack, the definition of an "I/O access pattern"has been reappropriated to describe what an application is doing to write or read data from the perspective of different layers of the stack, often comprising a different set of features. It has become common to have to redefine what is meant when discussing a pattern in every new study, as no assumption can be made. This survey aims to propose a baseline taxonomy, harnessing the I/O community's knowledge over the past 20 years. This definition can serve as a common ground for high-performance computing I/O researchers and developers to apply known I/O tuning strategies and design new strategies for improving I/O performance. We seek to summarize and bring a consensus to the multiple ways to describe a pattern based on common features already used by the community over the years.
- Published
- 2024