SummationByParts/sbp/benches/maxwell.rs

55 lines
1.6 KiB
Rust

use criterion::{black_box, criterion_group, criterion_main, Criterion};
use sbp::maxwell::System;
use sbp::operators::{SbpOperator, Upwind4, UpwindOperator, SBP4};
fn advance_system<SBP: SbpOperator>(universe: &mut System<SBP>, n: usize) {
for _ in 0..n {
universe.advance(0.01);
}
}
fn advance_system_upwind<UO: UpwindOperator>(universe: &mut System<UO>, n: usize) {
for _ in 0..n {
universe.advance_upwind(0.01);
}
}
fn performance_benchmark(c: &mut Criterion) {
let mut group = c.benchmark_group("MaxwellSystem");
group.sample_size(25);
let w = 40;
let h = 26;
let x = ndarray::Array2::from_shape_fn((h, w), |(_, i)| i as f32 / (w - 1) as f32);
let y = ndarray::Array2::from_shape_fn((h, w), |(j, _)| j as f32 / (h - 1) as f32);
let mut universe = System::<Upwind4>::new(x.clone(), y.clone());
group.bench_function("advance", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system(&mut universe, black_box(20))
})
});
let mut universe = System::<Upwind4>::new(x.clone(), y.clone());
group.bench_function("advance_upwind", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system_upwind(&mut universe, black_box(20))
})
});
let mut universe = System::<SBP4>::new(x, y);
group.bench_function("advance_trad4", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system(&mut universe, black_box(20))
})
});
group.finish();
}
criterion_group!(benches, performance_benchmark);
criterion_main!(benches);