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add benches for sparse matrix multiplication

This commit is contained in:
Magnus Ulimoen 2020-08-31 22:58:46 +02:00
parent 0c8b02b466
commit 8d90d8106d
1 changed files with 66 additions and 0 deletions
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66
sbp/benches/sbpoperators.rs
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@ -45,6 +45,72 @@ fn performance_benchmark(c: &mut Criterion) {
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();
}