Syndrome Decoding in the Quasi-cyclic Setting
Details on record 27

Length 4098
Challenge provider 2 - 🇫🇷 Université de Limoges
Weight 64
Target weight 64
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Authors Markku-Juhani Saarinen
Algorithm "Crinoid" codebase; in this instance: Threefold ring folding, GPU resident BJMM-DOOM with fast blockwise information set updates, multi-target QC rotations, and final exact full-ring lifting.
Hardware 24 NVIDIA GH200 GPUs across 8 GPU nodes of CSC’s "Roihu" system, operated by CSC – IT Center for Science, Finland.
Runtime 1 hour, 1 minute, 22 seconds (wall-time) -- 24.5 GPU-hours.
Comments -
Date 2026-09-30