119 lines
4.0 KiB
Rust
119 lines
4.0 KiB
Rust
use criterion::{criterion_group, criterion_main, Criterion};
|
|
use sbp::operators::{self, SbpOperator2d};
|
|
use sbp::Float;
|
|
|
|
fn performance_benchmark(c: &mut Criterion) {
|
|
let mut group = c.benchmark_group("SBPoperators");
|
|
group.sample_size(25);
|
|
|
|
let w = 64;
|
|
let h = 64;
|
|
|
|
let x = ndarray::Array2::from_shape_fn((w, h), |(j, i)| (j * h + i) as Float);
|
|
|
|
group.bench_function("upwind4 diffxi", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::Upwind4.diffxi(x.view(), res.view_mut()))
|
|
});
|
|
group.bench_function("upwind9 diffxi", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::Upwind9.diffxi(x.view(), res.view_mut()))
|
|
});
|
|
group.bench_function("trad4 diffxi", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::SBP4.diffxi(x.view(), res.view_mut()))
|
|
});
|
|
group.bench_function("trad8 diffxi", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::SBP8.diffxi(x.view(), res.view_mut()))
|
|
});
|
|
|
|
group.bench_function("upwind4 diffeta", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::Upwind4.diffeta(x.view(), res.view_mut()))
|
|
});
|
|
group.bench_function("upwind9 diffeta", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::Upwind9.diffeta(x.view(), res.view_mut()))
|
|
});
|
|
group.bench_function("trad4 diffeta", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::SBP4.diffeta(x.view(), res.view_mut()))
|
|
});
|
|
group.bench_function("trad8 diffeta", |b| {
|
|
let mut res = x.clone();
|
|
b.iter(|| operators::SBP8.diffeta(x.view(), res.view_mut()))
|
|
});
|
|
|
|
#[cfg(feature = "sparse")]
|
|
{
|
|
use sbp::utils::kronecker_product;
|
|
|
|
fn make_operators(
|
|
op: impl SbpOperator2d,
|
|
nx: usize,
|
|
ny: usize,
|
|
) -> (sprs::CsMat<Float>, sprs::CsMat<Float>) {
|
|
let dx = op.op_xi().diff_matrix(nx);
|
|
let dx = kronecker_product(sprs::CsMat::eye(ny).view(), dx.view());
|
|
|
|
let dy = op.op_eta().diff_matrix(ny);
|
|
let dy = kronecker_product(dy.view(), sprs::CsMat::eye(nx).view());
|
|
|
|
(dy, dx)
|
|
}
|
|
|
|
{
|
|
let (dy, dx) = make_operators(operators::Upwind4, w, h);
|
|
group.bench_function("upwind4 diffxi matrix", |b| {
|
|
let mut res = ndarray::Array2::zeros(x.raw_dim());
|
|
b.iter(|| {
|
|
sprs::prod::mul_acc_mat_vec_csr(
|
|
dx.view(),
|
|
x.as_slice().unwrap(),
|
|
res.as_slice_mut().unwrap(),
|
|
)
|
|
})
|
|
});
|
|
group.bench_function("upwind4 diffeta matrix", |b| {
|
|
let mut res = ndarray::Array2::zeros(x.raw_dim());
|
|
b.iter(|| {
|
|
sprs::prod::mul_acc_mat_vec_csr(
|
|
dy.view(),
|
|
x.as_slice().unwrap(),
|
|
res.as_slice_mut().unwrap(),
|
|
)
|
|
})
|
|
});
|
|
}
|
|
{
|
|
let (dy, dx) = make_operators(operators::Upwind9, w, h);
|
|
group.bench_function("upwind9 diffxi matrix", |b| {
|
|
let mut res = ndarray::Array2::zeros(x.raw_dim());
|
|
b.iter(|| {
|
|
sprs::prod::mul_acc_mat_vec_csr(
|
|
dx.view(),
|
|
x.as_slice().unwrap(),
|
|
res.as_slice_mut().unwrap(),
|
|
)
|
|
})
|
|
});
|
|
group.bench_function("upwind9 diffeta matrix", |b| {
|
|
let mut res = ndarray::Array2::zeros(x.raw_dim());
|
|
b.iter(|| {
|
|
sprs::prod::mul_acc_mat_vec_csr(
|
|
dy.view(),
|
|
x.as_slice().unwrap(),
|
|
res.as_slice_mut().unwrap(),
|
|
)
|
|
})
|
|
});
|
|
}
|
|
}
|
|
|
|
group.finish();
|
|
}
|
|
|
|
criterion_group!(benches, performance_benchmark);
|
|
criterion_main!(benches);
|