SummationByParts/maxwell/benches/bench.rs

150 lines
4.7 KiB
Rust

use criterion::{black_box, criterion_group, criterion_main, Criterion};
use maxwell::System;
use sbp::operators::{SbpOperator2d, Upwind4, UpwindOperator2d, SBP4};
use sbp::Float;
fn advance_system<SBP: SbpOperator2d>(universe: &mut System<SBP>, n: usize) {
for _ in 0..n {
universe.advance(0.01);
}
}
fn advance_system_upwind<UO: SbpOperator2d + UpwindOperator2d>(
universe: &mut System<UO>,
n: usize,
) {
for _ in 0..n {
universe.advance_upwind(0.01);
}
}
#[cfg(feature = "sparse")]
fn advance_system_matrix<SBP: SbpOperator2d>(universe: &mut System<SBP>, n: usize) {
for _ in 0..n {
universe.advance_sparse(0.01);
}
}
#[cfg(feature = "sparse")]
fn advance_system_matrix_implicit<SBP: SbpOperator2d>(universe: &mut System<SBP>, n: usize) {
for _ in 0..n {
universe.advance_implicit();
}
}
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 Float / (w - 1) as Float);
let y = ndarray::Array2::from_shape_fn((h, w), |(j, _)| j as Float / (h - 1) as Float);
let mut universe = System::new(x.clone(), y.clone(), Upwind4);
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::new(x.clone(), y.clone(), Upwind4);
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::new(x.clone(), y.clone(), SBP4);
group.bench_function("advance_trad4", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system(&mut universe, black_box(20))
})
});
#[cfg(feature = "sparse")]
{
let mut universe = System::new(x.clone(), y.clone(), Upwind4);
group.bench_function("advance_upwind4_as_matrix", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system_matrix(&mut universe, black_box(20))
})
});
let mut universe = System::new(x.clone(), y.clone(), sbp::operators::Upwind9);
group.bench_function("advance_upwind9_as_matrix", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system_matrix(&mut universe, black_box(20))
})
});
let mut universe = System::new(x.clone(), y.clone(), Upwind4);
group.bench_function("advance_upwind9_as_matrix_implicit", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
advance_system_matrix_implicit(&mut universe, black_box(20))
})
});
}
group.finish();
}
#[cfg(feature = "sparse")]
fn sparse_creation(c: &mut Criterion) {
let mut group = c.benchmark_group("MaxwellSystem");
group.sample_size(25);
let w = 40;
let h = 26;
group.bench_function("create_rhs_trad4", |b| {
let grid = sbp::grid::Grid::new_linspace(0.0..1.0, w, 0.0..1.0, h);
b.iter(|| {
let _matrix = maxwell::sparse::rhs_matrix(&SBP4, &grid);
})
});
group.bench_function("create_rhs_upwind4", |b| {
let grid = sbp::grid::Grid::new_linspace(0.0..1.0, w, 0.0..1.0, h);
b.iter(|| {
let _matrix = maxwell::sparse::rhs_matrix(&sbp::operators::Upwind4, &grid);
})
});
group.bench_function("create_rhs_upwind9", |b| {
let grid = sbp::grid::Grid::new_linspace(0.0..1.0, w, 0.0..1.0, h);
b.iter(|| {
let _matrix = maxwell::sparse::rhs_matrix(&sbp::operators::Upwind9, &grid);
})
});
group.bench_function("create_rhs_upwind_upwind4", |b| {
let grid = sbp::grid::Grid::new_linspace(0.0..1.0, w, 0.0..1.0, h);
b.iter(|| {
let _matrix = maxwell::sparse::rhs_matrix_with_upwind_dissipation(
&sbp::operators::Upwind4,
&grid,
);
})
});
group.bench_function("create_rhs_upwind_upwind9", |b| {
let grid = sbp::grid::Grid::new_linspace(0.0..1.0, w, 0.0..1.0, h);
b.iter(|| {
let _matrix = maxwell::sparse::rhs_matrix_with_upwind_dissipation(
&sbp::operators::Upwind9,
&grid,
);
})
});
}
#[cfg(feature = "sparse")]
criterion_group!(sparse_create, sparse_creation);
criterion_group!(benches, performance_benchmark);
#[cfg(feature = "sparse")]
criterion_main!(benches, sparse_create);
#[cfg(not(feature = "sparse"))]
criterion_main!(benches);