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tweak convergence test

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This commit is contained in:
Magnus Ulimoen
2020-02-25 19:44:13 +01:00
parent d1aa9f64a0
commit afa2ce655f
3 changed files with 37 additions and 16 deletions
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12
sbp/src/euler.rs
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@@ -270,7 +270,8 @@ impl Field {
}
impl Field {
pub fn err_diff<SBP: SbpOperator>(&self, other: &Self) -> f32 {
/// sqrt((self-other)^T*H*(self-other))
pub fn h2_err<SBP: SbpOperator>(&self, other: &Self) -> f32 {
assert_eq!(self.nx(), other.nx());
assert_eq!(self.ny(), other.ny());
@@ -312,6 +313,7 @@ impl Field {
.zip(other.0.iter())
.map(|(((hx, hy), r0), r1)| (*r0 - *r1).powi(2) * hx * hy)
.sum::<f32>()
.sqrt()
}
}
@@ -323,10 +325,10 @@ fn h2_diff() {
}
let field1 = Field::new(20, 21);
assert!((field0.err_diff::<super::operators::Upwind4>(&field1) - 4.0).abs() < 1e-3);
assert!((field0.err_diff::<super::operators::Upwind9>(&field1) - 4.0).abs() < 1e-3);
assert!((field0.err_diff::<super::operators::SBP4>(&field1) - 4.0).abs() < 1e-3);
assert!((field0.err_diff::<super::operators::SBP8>(&field1) - 4.0).abs() < 1e-3);
assert!((field0.h2_err::<super::operators::Upwind4>(&field1).powi(2) - 4.0).abs() < 1e-3);
assert!((field0.h2_err::<super::operators::Upwind9>(&field1).powi(2) - 4.0).abs() < 1e-3);
assert!((field0.h2_err::<super::operators::SBP4>(&field1).powi(2) - 4.0).abs() < 1e-3);
assert!((field0.h2_err::<super::operators::SBP8>(&field1).powi(2) - 4.0).abs() < 1e-3);
}
#[derive(Copy, Clone)]