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- Introduce dispatch layer for Dot() with AVX2 / NEON detection - Add pure Go fallback path (no CGO) - Implement blocked dot kernel for large vectors - Add loop-unrolled dot kernel for fast SIMD fallback - Integrate CPU feature detection via golang.org/x/sys/cpu - Wire Norm() and Cosine() to new Dot() pipeline - Ensure all code paths run without assembly present - Foundation for AVX2/NEON assembly drop-in
…er, parallel threshold heuristic - Added blocked dot product kernel with auto-tuned block size - DotBatch now selects serial vs parallel dynamically based on vector dim and batch size - CPU auto-detect dispatcher implemented (AVX2/NEON placeholders) - Removed broken ASM/CGO SIMD code to ensure cross-platform build - Updated benchmarks, README, and CHANGELOG for v0.3.0 - Future features postponed: SIMD backends, Faiss comparison, full auto-tune validation
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