Function parallel_width 

pub fn parallel_width(
    exec: &Exec<'_>,
    class: KernelClass,
    elements: usize,
) -> NonZeroUsize

Width of a flat entry (one section) that exec should use for elements elements of class: the width in 1..=budget that minimises the section cost plus the share of the work, 1 when no width pays.

Examples

use strided_basic::execution::{parallel_width, KernelClass};
use strided_basic::Exec;

assert_eq!(parallel_width(&Exec::serial(), KernelClass::Copy, usize::MAX >> 8).get(), 1);