feat(simd): cognitive shader re-exports + agent knowledge#108
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…e-graph) New knowledge file for ndarray agents. Does NOT overwrite existing SIMD knowledge (bf16_truth, cascade_search, constants, hardware_map, plane_node_seal, reasoning_reverse_eng_results, etc. all intact). Explains ndarray's role as Layer 0 + parts of Layer 1 in the 7-layer cognitive shader stack. Clarifies public surface: ndarray::simd::* is the stable API, ndarray::hpc::* is private implementation detail. Maps rustynum→ndarray type substitutions (migration-tracker agent owns this table). Documents gaps: MultiLaneColumn missing, Fingerprint needs as_u8x64, simd.rs re-exports incomplete. Parallel doc in lance-graph: .claude/knowledge/cognitive-shader-architecture.md https://claude.ai/code/session_01SbYsmmbPf9YQuYbHZN52Zh
ndarray::simd::* now exports: - Fingerprint<N>, Fingerprint2K/1K/64K, VectorWidth, vector_config() - CollapseGate (Flow/Block/Hold) - hamming_distance_raw, popcount_raw - wht_f32, wht_f32_new - quantize/dequantize i4/i2/i8 + QuantParams - kmeans, squared_l2 - cosine_f32_to_f64_simd Consumers import from ndarray::simd::* only. The hpc/ paths stay private. https://claude.ai/code/session_01SbYsmmbPf9YQuYbHZN52Zh
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Summary
ndarray::simd::*Consumers import from
ndarray::simd::*only. Thehpc/paths stay private implementation detail.Test plan
cargo check— compiles cleanhttps://claude.ai/code/session_01SbYsmmbPf9YQuYbHZN52Zh