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use rk4 in maxwell

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This commit is contained in:
Magnus Ulimoen
2020-01-29 21:06:50 +01:00
parent e957a4fff7
commit 3229554d6b
3 changed files with 107 additions and 201 deletions
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15
benches/maxwell.rs
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@@ -1,14 +1,14 @@
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use sbp::maxwell::System;
use sbp::operators::{SbpOperator, Upwind4, UpwindOperator, SBP4};
use sbp::MaxwellSystem;
fn advance_system<SBP: SbpOperator>(universe: &mut MaxwellSystem<SBP>, n: usize) {
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 MaxwellSystem<UO>, n: usize) {
fn advance_system_upwind<UO: UpwindOperator>(universe: &mut System<UO>, n: usize) {
for _ in 0..n {
universe.advance_upwind(0.01);
}
@@ -23,8 +23,7 @@ fn performance_benchmark(c: &mut Criterion) {
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 =
MaxwellSystem::<Upwind4>::new(w, h, x.as_slice().unwrap(), y.as_slice().unwrap());
let mut universe = System::<Upwind4>::new(w, h, x.as_slice().unwrap(), y.as_slice().unwrap());
group.bench_function("advance", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
@@ -32,8 +31,7 @@ fn performance_benchmark(c: &mut Criterion) {
})
});
let mut universe =
MaxwellSystem::<Upwind4>::new(w, h, x.as_slice().unwrap(), y.as_slice().unwrap());
let mut universe = System::<Upwind4>::new(w, h, x.as_slice().unwrap(), y.as_slice().unwrap());
group.bench_function("advance_upwind", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);
@@ -41,8 +39,7 @@ fn performance_benchmark(c: &mut Criterion) {
})
});
let mut universe =
MaxwellSystem::<SBP4>::new(w, h, x.as_slice().unwrap(), y.as_slice().unwrap());
let mut universe = System::<SBP4>::new(w, h, x.as_slice().unwrap(), y.as_slice().unwrap());
group.bench_function("advance_trad4", |b| {
b.iter(|| {
universe.set_gaussian(0.5, 0.5);