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rename advance and remove boundaries in toplevel

This commit is contained in:
Magnus Ulimoen 2020-01-29 20:06:44 +01:00
parent 2f74aca08e
commit b92e1412d3
1 changed files with 31 additions and 40 deletions
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71
src/euler.rs
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@ -28,13 +28,14 @@ impl<SBP: SbpOperator> System<SBP> {
}
pub fn advance(&mut self, dt: f32) {
advance(
integrate_rk4(
RHS_trad,
&self.sys.0,
&mut self.sys.1,
dt,
&self.grid,
Some(&mut self.wb),
&mut self.wb.k,
&mut self.wb.tmp,
);
std::mem::swap(&mut self.sys.0, &mut self.sys.1);
}
@ -94,13 +95,14 @@ impl<SBP: SbpOperator> System<SBP> {
impl<UO: UpwindOperator> System<UO> {
pub fn advance_upwind(&mut self, dt: f32) {
advance(
integrate_rk4(
RHS_upwind,
&self.sys.0,
&mut self.sys.1,
dt,
&self.grid,
Some(&mut self.wb),
&mut self.wb.k,
&mut self.wb.tmp,
);
std::mem::swap(&mut self.sys.0, &mut self.sys.1);
}
@ -222,57 +224,37 @@ impl Field {
}
}
pub(crate) fn advance<SBP, RHS>(
pub(crate) fn integrate_rk4<SBP, RHS, WB>(
rhs: RHS,
prev: &Field,
fut: &mut Field,
dt: f32,
grid: &Grid<SBP>,
work_buffers: Option<&mut WorkBuffers>,
k: &mut [Field; 4],
mut wb: &mut WB,
) where
SBP: SbpOperator,
RHS: Fn(
&mut Field,
&Field,
&Grid<SBP>,
&BoundaryTerms,
&mut (Field, Field, Field, Field, Field, Field),
),
RHS: Fn(&mut Field, &Field, &Grid<SBP>, &mut WB),
{
assert_eq!(prev.0.shape(), fut.0.shape());
let mut wb: WorkBuffers;
let (y, k, tmp) = if let Some(x) = work_buffers {
(&mut x.y, &mut x.buf, &mut x.tmp)
} else {
wb = WorkBuffers::new(prev.nx(), prev.ny());
(&mut wb.y, &mut wb.buf, &mut wb.tmp)
};
let boundaries = BoundaryTerms {
north: Boundary::This,
south: Boundary::This,
west: Boundary::This,
east: Boundary::This,
};
for i in 0..4 {
// y = y0 + c*kn
y.assign(&prev);
fut.assign(&prev);
match i {
0 => {}
1 | 2 => {
y.scaled_add(1.0 / 2.0 * dt, &k[i - 1]);
fut.scaled_add(1.0 / 2.0 * dt, &k[i - 1]);
}
3 => {
y.scaled_add(dt, &k[i - 1]);
fut.scaled_add(dt, &k[i - 1]);
}
_ => {
unreachable!();
}
};
rhs(&mut k[i], &y, grid, &boundaries, tmp);
rhs(&mut k[i], &fut, grid, &mut wb);
}
Zip::from(&mut fut.0)
@ -293,7 +275,6 @@ pub(crate) fn RHS_trad<SBP: SbpOperator>(
k: &mut Field,
y: &Field,
grid: &Grid<SBP>,
boundaries: &BoundaryTerms,
tmp: &mut (Field, Field, Field, Field, Field, Field),
) {
let ehat = &mut tmp.0;
@ -319,7 +300,14 @@ pub(crate) fn RHS_trad<SBP: SbpOperator>(
*out = (-eflux - fflux)/detj
});
SAT_characteristics(k, y, grid, boundaries);
let boundaries = BoundaryTerms {
north: Boundary::This,
south: Boundary::This,
west: Boundary::This,
east: Boundary::This,
};
SAT_characteristics(k, y, grid, &boundaries);
}
#[allow(non_snake_case)]
@ -327,7 +315,6 @@ pub(crate) fn RHS_upwind<UO: UpwindOperator>(
k: &mut Field,
y: &Field,
grid: &Grid<UO>,
boundaries: &BoundaryTerms,
tmp: &mut (Field, Field, Field, Field, Field, Field),
) {
let ehat = &mut tmp.0;
@ -359,7 +346,13 @@ pub(crate) fn RHS_upwind<UO: UpwindOperator>(
*out = (-eflux - fflux + ad_xi + ad_eta)/detj
});
SAT_characteristics(k, y, grid, boundaries);
let boundaries = BoundaryTerms {
north: Boundary::This,
south: Boundary::This,
west: Boundary::This,
east: Boundary::This,
};
SAT_characteristics(k, y, grid, &boundaries);
}
#[allow(clippy::many_single_char_names)]
@ -721,8 +714,7 @@ fn SAT_characteristic(
}
pub struct WorkBuffers {
y: Field,
buf: [Field; 4],
k: [Field; 4],
tmp: (Field, Field, Field, Field, Field, Field),
}
@ -730,8 +722,7 @@ impl WorkBuffers {
pub fn new(nx: usize, ny: usize) -> Self {
let arr3 = Field::new(nx, ny);
Self {
y: arr3.clone(),
buf: [arr3.clone(), arr3.clone(), arr3.clone(), arr3.clone()],
k: [arr3.clone(), arr3.clone(), arr3.clone(), arr3.clone()],
tmp: (
arr3.clone(),
arr3.clone(),