Module simd_distance 

SIMD-accelerated distance functions

Provides optimized distance calculations using:

• AVX2 on x86_64 (256-bit vectors, 8 floats at a time)
• NEON on aarch64 (128-bit vectors, 4 floats at a time)
• Auto-vectorized fallback for other architectures

Functions

simd_cosine_similarity

SIMD-accelerated cosine similarity

simd_distance

Calculate distance/similarity using SIMD when available Returns similarity score (higher = more similar)

simd_dot_product

SIMD-accelerated dot product

simd_negative_euclidean

SIMD-accelerated negative euclidean distance