Transcoding Unicode Characters with AVX-512 Instructions [r-libre/3026]

Clausecker, Robert et Lemire, Daniel (2023). Transcoding Unicode Characters with AVX-512 Instructions. Software: Practice and Experience, 53 (12). https://doi.org/10.1002/spe.3261

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Catégorie de document :	Articles de revues
Évaluation par un comité de lecture :	Oui
Étape de publication :	Publié
Résumé :	Intel includes in its recent processors a powerful set of instructions capable of processing 512-bit registers with a single instruction (AVX-512). Some of these instructions have no equivalent in earlier instruction sets. We leverage these instructions to efficiently transcode strings between the most common formats: UTF-8 and UTF-16. With our novel algorithms, we are often twice as fast as the previous best solutions. For example, we transcode Chinese text from UTF-8 to UTF-16 at more than 5 GiB/s using fewer than 2 CPU instructions per character. To ensure reproducibility, we make our software freely available as an open source library. Our library is part of the popular Node.js JavaScript runtime.
Adresse de la version officielle :	https://onlinelibrary.wiley.com/doi/10.1002/spe.32...
Déposant:	Lemire, Daniel
Responsable :	Daniel Lemire
Dépôt :	07 août 2023 20:26
Dernière modification :	11 nov. 2023 10:12

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