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make precision selectable using feature

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Magnus Ulimoen
2020-02-27 20:26:43 +01:00
parent afa2ce655f
commit ba420b1554
15 changed files with 252 additions and 211 deletions
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14
sbp/tests/convergence.rs
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@@ -1,8 +1,9 @@
#![cfg(feature = "expensive_tests")]
use ndarray::prelude::*;
use sbp::euler::*;
use sbp::Float;
fn run_with_size<SBP: sbp::operators::UpwindOperator>(size: usize) -> f32 {
fn run_with_size<SBP: sbp::operators::UpwindOperator>(size: usize) -> Float {
let nx = size;
let ny = size;
let x = Array1::linspace(-5.0, 5.0, nx);
@@ -28,7 +29,7 @@ fn run_with_size<SBP: sbp::operators::UpwindOperator>(size: usize) -> f32 {
sys.vortex(0.0, vortex_params);
let time = 0.2;
let dt = 0.2 * f32::min(1.0 / (nx - 1) as f32, 1.0 / (ny - 1) as f32);
let dt = 0.2 * Float::min(1.0 / (nx - 1) as Float, 1.0 / (ny - 1) as Float);
let nsteps = (time / dt) as usize;
for _ in 0..nsteps {
@@ -36,15 +37,15 @@ fn run_with_size<SBP: sbp::operators::UpwindOperator>(size: usize) -> f32 {
}
let mut verifield = Field::new(ny, nx);
verifield.vortex(sys.x(), sys.y(), nsteps as f32 * dt, vortex_params);
verifield.vortex(sys.x(), sys.y(), nsteps as Float * dt, vortex_params);
verifield.h2_err::<SBP>(sys.field())
}
#[test]
fn convergence() {
let sizes = [25, 35, 50, 71, 100, 150];
let mut prev: Option<(usize, f32)> = None;
let sizes = [25, 35, 50, 71, 100, 150, 200];
let mut prev: Option<(usize, Float)> = None;
println!("Size\tError(h2)\tq");
for size in &sizes {
print!("{:3}x{:3}", size, size);
@@ -57,7 +58,8 @@ fn convergence() {
let (size1, e1) = prev;
let m1 = size1 * size1;
let q = f32::log10(e0 / e1) / f32::log10((m0 as f32 / m1 as f32).powf(1.0 / 2.0));
let q =
Float::log10(e0 / e1) / Float::log10((m0 as Float / m1 as Float).powf(1.0 / 2.0));
print!("\t{}", q);
}
println!();