AOCL-Compression

AOCL-Compression is a software framework that provides lossless data compression and decompression methods specifically tuned and optimized for AMD “Zen”-based CPUs.

This library supports compression and decompression methods such as LZ4, ZLIB/DEFLATE/GZIP, ZSTD, BZIP2, Snappy, LZMA, and LZ4HC.

Highlights of AOCL-Compression 5.3

• Refactored dynamic dispatch infrastructure to improve runtime robustness and correctness across all x86 platforms by enhancing CPU feature detection, dispatch selection logic, and fallback handling
• Introduced a local thread control API enabling applications to manage and tune library‑internal worker threads, improving integration with application threading models and resource management policies
• Added GNU Make–based build system support for Linux platforms, intended for developer workflows and early integration, with currently limited test coverage and validation scope
• Implemented AOCL_LLC_PREFIX user option to allow configurable symbol prefixing of exported library APIs thereby preventing symbol collisions when linking with other library implementations in mixed or multi‑vendor environments
• Resolved multiple correctness and stability issues across compression libraries, including fixes for ZSTD fast decompression (FDS), multi‑threaded BZIP2 decompression crashes, and zlib decompression failures

Documentation

• AOCL-Compression API Guide
• Prior versions: AOCL-Compression Archive
• Source code: GitHub

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