Module linear 

Linear projection kernel.

Matches linear-projection-v1.yaml. y = xW^T + b — matrix multiply with optional bias.

Each function provides one of three backends:

• fn linear_scalar(...) – Pure Rust scalar reference (ground truth)
• unsafe fn linear_avx2(...) – AVX2 SIMD implementation
• fn linear_ptx() -> &'static str – PTX assembly source string

Functions

linear_avx2^⚠

AVX2 linear projection – delegates to scalar.

linear_ptx

PTX assembly for linear projection.

linear_scalar

Linear projection (scalar reference).