dot_simd

scirs2_core::ndarray_ext::elementwise

Function dot_simd 

Source 
pub fn dot_simd<F>(a: &ArrayView1<'_, F>, b: &ArrayView1<'_, F>) -> F
where
    F: Float + SimdUnifiedOps,
Expand description

SIMD-accelerated dot product

Computes sum(a * b).

§Arguments

  • a - First vector
  • b - Second vector

§Returns

Dot product (scalar)

§Examples

use scirs2_core::ndarray::array;
use scirs2_core::ndarray_ext::elementwise::dot_simd;

let a = array![1.0_f64, 2.0, 3.0];
let b = array![4.0_f64, 5.0, 6.0];
let d = dot_simd::<f64>(&a.view(), &b.view());
// 1*4 + 2*5 + 3*6 = 4 + 10 + 18 = 32
assert!((d - 32.0).abs() < 1e-14);

§Use Cases

  • Projection calculations
  • Cosine similarity numerator
  • Attention scores
  • Linear layer computation