Type Alias OneSeedBatch 

pub type OneSeedBatch<const K: usize> = OneSeedLane<f64x4, K>;

The 4-rows-per-pass batched one-seed scalar (wide::f64x4 lanes).

Aliased Type

pub struct OneSeedBatch<const K: usize> {
    pub base: Order2Lane<f64x4, K>,
    pub eps: Order2Lane<f64x4, K>,
}

Fields

base: Order2Lane<f64x4, K>

The ε⁰ part (lane-batched value / gradient / Hessian of ℓ).

eps: Order2Lane<f64x4, K>

The ε¹ part. After a seed_direction(u) evaluation, eps.h[a][b] lane i is row i’s Σ_c ℓ_{abc} u_c.

Implementations

impl<const K: usize> OneSeedBatch<K>

pub fn lane(&self, i: usize) -> OneSeed<K>

Extract lane i’s parts as a production OneSeed<K>. Lane i is to_bits-identical to evaluating the same program at OneSeed<K> on row i (see batch_tests).