Cpu Optimization With Avx2 And Neon Vectorization

via “simd-accelerated distance computation with cpu auto-dispatch”

A lightweight, lightning-fast, in-process vector database

Unique: Implements runtime CPU capability detection with fallback kernels for each SIMD level (AVX-512 VNNI → AVX2 → SSE), enabling single-binary deployments that automatically adapt to hardware without recompilation, and includes specialized AVX-512 VNNI kernels for quantized vector operations

vs others: More portable than Faiss (which requires separate builds per SIMD level) and more performant than pure C++ implementations because it leverages CPU-specific optimizations transparently, while maintaining compatibility across x86_64 and ARM64 architectures