tract-linalg

linalg stands for "linear algebra". This is a misnamer. This crates contains low-level, architecture dependant optimisations used by tract-core.

Functions

MatMatMul: Extended matrix*matrix product:
- inspired by Gotoblass and BLIS micro kernel approach
- extended for convolution friendly addressing (fused img2col)
- fused output pipeline (min, max, and a few more simple, fast ops)
- f32*f32 -> f32 (à la sgemm)
- i8*i8 -> i32 accumulator -> i32 storage
- i8*i8 -> i32 accumulator -> i8 (with channel zeropoint and scale, and re-quantization pipeline)
f32 sigmoid and f32 tanh: at f32 precision, by a rationale function (no exponentiation)
byte-to-byte lookup table