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colibri-strix/c/tests
ZacharyZcR 4b1d0e3a57 expert dot: AVX-512 int4→float accumulator, runtime-switchable (I4_ACC512), +7% CPU-heavy decode, more accurate than AVX2 order (#95)
AVX-512F/BW build path only; non-AVX-512 builds bit-identical. Qualified on Xeon Silver 4510: max rel-err 2-6× lower than scalar oracle order, ppl 5.99 vs 5.98 (0.24%), runtime escape hatch I4_ACC512=0. Clears the #80/#94 numerical bar.
2026-07-13 15:24:25 +02:00
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