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