@inproceedings{e766fef12ef24158ba6273953869aab7,
title = "WARio: efficient code generation for intermittent computing",
abstract = "Intermittently operating embedded computing platforms powered by energy harvesting require software frameworks to protect from errors caused by Write After Read (WAR) dependencies. A powerful method of code protection for systems with non-volatile main memory utilizes compiler analysis to insert a checkpoint inside each WAR violation in the code. However, such software frameworks are oblivious to the code structure - -and therefore, inefficient - -when many consecutive WAR violations exist. Our insight is that by transforming the input code, i.e., moving individual write operations from unique WARs close to each other, we can significantly reduce the number of checkpoints. This idea is the foundation for WARio: a set of compiler transformations for efficient code generation for intermittent computing. WARio, on average, reduces checkpoint overhead by 58%, and up to 88%, compared to the state of the art across various benchmarks.",
keywords = "battery-free, code transformation, compiler, embedded system, intermittent computing, optimization",
author = "Vito Kortbeek and Souradip Ghosh and Josiah Hester and Simone Campanoni and Przemys{\l}aw Pawe{\l}czak",
year = "2022",
doi = "10.1145/3519939.3523454",
language = "English",
series = "Proceedings of the ACM SIGPLAN Conference on Programming Language Design and Implementation (PLDI)",
publisher = "Association for Computing Machinery (ACM)",
pages = "777--791",
editor = "Ranjit Jhala and Isil Dillig",
booktitle = "PLDI 2022 - Proceedings of the 43rd ACM SIGPLAN International Conference on Programming Language Design and Implementation",
address = "United States",
note = "43rd ACM SIGPLAN International Conference on Programming Language Design and Implementation, PLDI 2022 ; Conference date: 13-06-2022 Through 17-06-2022",
}