Merge branch 'feature/distribute'
Replaces the `rayon` implementation with a new approach using a thread per grid architectures which allows concurrent execution with less communication with the main thread.
This commit is contained in:
commit
86275d2c2e
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@ -5,6 +5,7 @@ use super::GAMMA;
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use ndarray::{azip, ArrayView, ArrayViewMut, Dimension};
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pub trait Evaluator<D: Dimension>: Send + Sync {
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#[allow(clippy::too_many_arguments)]
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fn evaluate(
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&self,
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t: Float,
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@ -55,6 +56,7 @@ pub trait EvaluatorPressure<D: Dimension>: Send + Sync {
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rho: ArrayView<Float, D>,
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out: ArrayViewMut<Float, D>,
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);
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#[allow(clippy::too_many_arguments)]
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fn p(
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&self,
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t: Float,
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@ -70,6 +72,7 @@ pub trait EvaluatorPressure<D: Dimension>: Send + Sync {
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impl<'a, D: Dimension, BP: EvaluatorPressure<D>> Evaluator<D>
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for EvaluatorPressureWrapper<'a, D, BP>
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{
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#[allow(clippy::many_single_char_names)]
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fn evaluate(
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&self,
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t: Float,
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158
euler/src/lib.rs
158
euler/src/lib.rs
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@ -301,22 +301,18 @@ impl Field {
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pub fn west(&self) -> ArrayView2<Float> {
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self.slice(s![.., .., 0])
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}
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#[allow(unused)]
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fn north_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn north_mut(&mut self) -> ArrayViewMut2<Float> {
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let ny = self.ny();
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self.slice_mut(s![.., ny - 1, ..])
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}
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#[allow(unused)]
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fn south_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn south_mut(&mut self) -> ArrayViewMut2<Float> {
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self.slice_mut(s![.., 0, ..])
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}
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#[allow(unused)]
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fn east_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn east_mut(&mut self) -> ArrayViewMut2<Float> {
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let nx = self.nx();
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self.slice_mut(s![.., .., nx - 1])
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}
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#[allow(unused)]
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fn west_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn west_mut(&mut self) -> ArrayViewMut2<Float> {
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self.slice_mut(s![.., .., 0])
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}
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@ -330,6 +326,7 @@ impl Field {
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let (rho, rhou, rhov, e) = self.components_mut();
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vortex_param.evaluate(time, x, y, rho, rhou, rhov, e)
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}
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#[allow(clippy::erasing_op, clippy::identity_op)]
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fn iter(&self) -> impl ExactSizeIterator<Item = FieldValue> + '_ {
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let n = self.nx() * self.ny();
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let slice = self.0.as_slice().unwrap();
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@ -462,18 +459,18 @@ impl Diff {
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pub fn zeros((ny, nx): (usize, usize)) -> Self {
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Self(Array3::zeros((4, ny, nx)))
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}
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fn north_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn north_mut(&mut self) -> ArrayViewMut2<Float> {
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let ny = self.shape()[1];
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self.0.slice_mut(s![.., ny - 1, ..])
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}
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fn south_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn south_mut(&mut self) -> ArrayViewMut2<Float> {
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self.0.slice_mut(s![.., 0, ..])
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}
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fn east_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn east_mut(&mut self) -> ArrayViewMut2<Float> {
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let nx = self.shape()[2];
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self.0.slice_mut(s![.., .., nx - 1])
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}
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fn west_mut(&mut self) -> ArrayViewMut2<Float> {
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pub fn west_mut(&mut self) -> ArrayViewMut2<Float> {
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self.0.slice_mut(s![.., .., 0])
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}
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}
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@ -517,6 +514,59 @@ pub fn RHS_trad(
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SAT_characteristics(op, k, y, metrics, boundaries);
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}
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#[allow(non_snake_case)]
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pub fn RHS_no_SAT(
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op: &dyn SbpOperator2d,
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k: &mut Diff,
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y: &Field,
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metrics: &Metrics,
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tmp: &mut (Field, Field, Field, Field, Field, Field),
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) {
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let ehat = &mut tmp.0;
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let fhat = &mut tmp.1;
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fluxes((ehat, fhat), y, metrics, &mut tmp.2);
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let dE = &mut tmp.2;
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let dF = &mut tmp.3;
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op.diffxi(ehat.rho(), dE.rho_mut());
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op.diffxi(ehat.rhou(), dE.rhou_mut());
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op.diffxi(ehat.rhov(), dE.rhov_mut());
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op.diffxi(ehat.e(), dE.e_mut());
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op.diffeta(fhat.rho(), dF.rho_mut());
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op.diffeta(fhat.rhou(), dF.rhou_mut());
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op.diffeta(fhat.rhov(), dF.rhov_mut());
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op.diffeta(fhat.e(), dF.e_mut());
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if let Some(diss_op) = op.upwind() {
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let ad_xi = &mut tmp.4;
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let ad_eta = &mut tmp.5;
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upwind_dissipation(
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&*diss_op,
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(ad_xi, ad_eta),
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y,
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metrics,
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(&mut tmp.0, &mut tmp.1),
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);
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azip!((out in &mut k.0,
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eflux in &dE.0,
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fflux in &dF.0,
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ad_xi in &ad_xi.0,
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ad_eta in &ad_eta.0,
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detj in &metrics.detj().broadcast((4, y.ny(), y.nx())).unwrap()) {
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*out = (-eflux - fflux + ad_xi + ad_eta)/detj
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});
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} else {
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azip!((out in &mut k.0,
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eflux in &dE.0,
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fflux in &dF.0,
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detj in &metrics.detj().broadcast((4, y.ny(), y.nx())).unwrap()) {
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*out = (-eflux - fflux )/detj
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});
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}
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}
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#[allow(non_snake_case)]
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pub fn RHS_upwind(
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op: &dyn SbpOperator2d,
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@ -949,18 +999,38 @@ fn vortexify(
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#[allow(non_snake_case)]
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/// Boundary conditions (SAT)
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fn SAT_characteristics(
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pub fn SAT_characteristics(
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op: &dyn SbpOperator2d,
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k: &mut Diff,
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y: &Field,
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metrics: &Metrics,
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boundaries: &BoundaryTerms,
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) {
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let ny = y.ny();
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let nx = y.nx();
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SAT_north(op, k.north_mut(), y, metrics, boundaries.north);
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SAT_south(op, k.south_mut(), y, metrics, boundaries.south);
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SAT_east(op, k.east_mut(), y, metrics, boundaries.east);
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SAT_west(op, k.west_mut(), y, metrics, boundaries.west);
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}
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pub const SAT_FUNCTIONS: Direction<
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fn(&dyn SbpOperator2d, ArrayViewMut2<Float>, &Field, &Metrics, ArrayView2<Float>),
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> = Direction {
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north: SAT_north,
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south: SAT_south,
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west: SAT_west,
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east: SAT_east,
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};
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#[allow(non_snake_case)]
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pub fn SAT_north(
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op: &dyn SbpOperator2d,
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k: ArrayViewMut2<Float>,
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y: &Field,
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metrics: &Metrics,
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boundary: ArrayView2<Float>,
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) {
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let ny = y.ny();
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// North boundary
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{
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let hi = if op.is_h2eta() {
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(ny - 2) as Float / op.heta()[0]
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} else {
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@ -970,9 +1040,9 @@ fn SAT_characteristics(
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let tau = 1.0;
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let slice = s![y.ny() - 1, ..];
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SAT_characteristic(
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k.north_mut(),
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k,
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y.north(),
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boundaries.north,
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boundary,
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hi,
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sign,
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tau,
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@ -981,8 +1051,16 @@ fn SAT_characteristics(
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metrics.detj_deta_dy().slice(slice),
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);
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}
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// South boundary
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{
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#[allow(non_snake_case)]
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pub fn SAT_south(
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op: &dyn SbpOperator2d,
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k: ArrayViewMut2<Float>,
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y: &Field,
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metrics: &Metrics,
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boundary: ArrayView2<Float>,
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) {
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let ny = y.ny();
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let hi = if op.is_h2eta() {
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(ny - 2) as Float / op.heta()[0]
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} else {
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@ -992,9 +1070,9 @@ fn SAT_characteristics(
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let tau = -1.0;
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let slice = s![0, ..];
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SAT_characteristic(
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k.south_mut(),
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k,
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y.south(),
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boundaries.south,
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boundary,
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hi,
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sign,
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tau,
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|
|
@ -1003,8 +1081,17 @@ fn SAT_characteristics(
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metrics.detj_deta_dy().slice(slice),
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);
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}
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// West Boundary
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{
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#[allow(non_snake_case)]
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pub fn SAT_west(
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op: &dyn SbpOperator2d,
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k: ArrayViewMut2<Float>,
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y: &Field,
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metrics: &Metrics,
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boundary: ArrayView2<Float>,
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) {
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let nx = y.nx();
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let hi = if op.is_h2xi() {
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(nx - 2) as Float / op.hxi()[0]
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} else {
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|
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@ -1014,9 +1101,9 @@ fn SAT_characteristics(
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let tau = -1.0;
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let slice = s![.., 0];
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SAT_characteristic(
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k.west_mut(),
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k,
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y.west(),
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boundaries.west,
|
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boundary,
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hi,
|
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sign,
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tau,
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|
|
@ -1025,8 +1112,16 @@ fn SAT_characteristics(
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|||
metrics.detj_dxi_dy().slice(slice),
|
||||
);
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||||
}
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// East Boundary
|
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{
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#[allow(non_snake_case)]
|
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pub fn SAT_east(
|
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op: &dyn SbpOperator2d,
|
||||
k: ArrayViewMut2<Float>,
|
||||
y: &Field,
|
||||
metrics: &Metrics,
|
||||
boundary: ArrayView2<Float>,
|
||||
) {
|
||||
let nx = y.nx();
|
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let hi = if op.is_h2xi() {
|
||||
(nx - 2) as Float / op.hxi()[0]
|
||||
} else {
|
||||
|
|
@ -1036,9 +1131,9 @@ fn SAT_characteristics(
|
|||
let tau = 1.0;
|
||||
let slice = s![.., y.nx() - 1];
|
||||
SAT_characteristic(
|
||||
k.east_mut(),
|
||||
k,
|
||||
y.east(),
|
||||
boundaries.east,
|
||||
boundary,
|
||||
hi,
|
||||
sign,
|
||||
tau,
|
||||
|
|
@ -1047,7 +1142,6 @@ fn SAT_characteristics(
|
|||
metrics.detj_dxi_dy().slice(slice),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
#[allow(non_snake_case)]
|
||||
#[allow(clippy::many_single_char_names)]
|
||||
|
|
|
|||
|
|
@ -11,10 +11,15 @@ euler = { path = "../euler", features = ["serde1"] }
|
|||
hdf5 = "0.7.0"
|
||||
integrate = { path = "../utils/integrate" }
|
||||
rayon = "1.3.0"
|
||||
indicatif = "0.15.0"
|
||||
indicatif = "0.17.0-beta.1"
|
||||
ndarray = { version = "0.14.0", features = ["serde"] }
|
||||
serde = { version = "1.0.115", features = ["derive"] }
|
||||
json5 = "0.3.0"
|
||||
indexmap = { version = "1.5.2", features = ["serde-1"] }
|
||||
argh = "0.1.4"
|
||||
evalexpr = "6.3.0"
|
||||
crossbeam-channel = "0.5.0"
|
||||
crossbeam-utils = "0.8.5"
|
||||
parking_lot = "0.11.1"
|
||||
lock_api = "0.4.4"
|
||||
arrayvec = "0.7.1"
|
||||
|
|
|
|||
|
|
@ -10,6 +10,7 @@ pub enum Evaluator {
|
|||
}
|
||||
|
||||
impl<D: Dimension> euler::eval::Evaluator<D> for Evaluator {
|
||||
#[allow(clippy::many_single_char_names)]
|
||||
fn evaluate(
|
||||
&self,
|
||||
t: Float,
|
||||
|
|
|
|||
|
|
@ -79,6 +79,7 @@ pub struct EvaluatorConservation {
|
|||
}
|
||||
|
||||
impl<D: Dimension> euler::eval::Evaluator<D> for Evaluator {
|
||||
#[allow(clippy::many_single_char_names)]
|
||||
fn evaluate(
|
||||
&self,
|
||||
t: Float,
|
||||
|
|
@ -267,6 +268,7 @@ impl<D: Dimension> euler::eval::EvaluatorPressure<D> for EvaluatorPressure {
|
|||
})
|
||||
}
|
||||
|
||||
#[allow(clippy::many_single_char_names)]
|
||||
fn p(
|
||||
&self,
|
||||
t: Float,
|
||||
|
|
|
|||
|
|
@ -1,155 +0,0 @@
|
|||
use super::*;
|
||||
|
||||
pub struct OutputThread {
|
||||
rx: Option<std::sync::mpsc::Receiver<Vec<euler::Field>>>,
|
||||
tx: Option<std::sync::mpsc::SyncSender<(u64, Vec<euler::Field>)>>,
|
||||
thread: Option<std::thread::JoinHandle<()>>,
|
||||
}
|
||||
|
||||
impl OutputThread {
|
||||
pub fn new(file: File) -> Self {
|
||||
// Pingpong back and forth a number of Vec<Field> to be used for the
|
||||
// output. The sync_channel applies some backpressure
|
||||
let (tx_thread, rx) = std::sync::mpsc::channel::<Vec<euler::Field>>();
|
||||
let (tx, rx_thread) = std::sync::mpsc::sync_channel::<(u64, Vec<euler::Field>)>(3);
|
||||
let thread = std::thread::Builder::new()
|
||||
.name("multigrid_output".to_owned())
|
||||
.spawn(move || {
|
||||
let mut times = Vec::<u64>::new();
|
||||
|
||||
for (ntime, fields) in rx_thread.iter() {
|
||||
if !times.contains(&ntime) {
|
||||
file.add_timestep(ntime, fields.as_slice()).unwrap();
|
||||
times.push(ntime);
|
||||
}
|
||||
tx_thread.send(fields).unwrap();
|
||||
}
|
||||
})
|
||||
.unwrap();
|
||||
|
||||
Self {
|
||||
tx: Some(tx),
|
||||
rx: Some(rx),
|
||||
thread: Some(thread),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn add_timestep(&mut self, ntime: u64, fields: &[euler::Field]) {
|
||||
match self.rx.as_ref().unwrap().try_recv() {
|
||||
Ok(mut copy_fields) => {
|
||||
for (from, to) in fields.iter().zip(copy_fields.iter_mut()) {
|
||||
to.clone_from(&from);
|
||||
}
|
||||
self.tx
|
||||
.as_ref()
|
||||
.unwrap()
|
||||
.send((ntime, copy_fields))
|
||||
.unwrap();
|
||||
}
|
||||
Err(std::sync::mpsc::TryRecvError::Empty) => {
|
||||
let fields = fields.to_vec();
|
||||
self.tx.as_ref().unwrap().send((ntime, fields)).unwrap();
|
||||
}
|
||||
Err(e) => panic!("{:?}", e),
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
impl Drop for OutputThread {
|
||||
fn drop(&mut self) {
|
||||
let tx = self.tx.take();
|
||||
std::mem::drop(tx);
|
||||
let thread = self.thread.take().unwrap();
|
||||
thread.join().unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone)]
|
||||
pub struct File(hdf5::File, Vec<String>);
|
||||
|
||||
impl File {
|
||||
pub fn create<P: AsRef<std::path::Path>>(
|
||||
path: P,
|
||||
grids: &[sbp::grid::Grid],
|
||||
names: Vec<String>,
|
||||
) -> Result<Self, Box<dyn std::error::Error>> {
|
||||
assert_eq!(grids.len(), names.len());
|
||||
let file = hdf5::File::create(path.as_ref())?;
|
||||
let _tds = file
|
||||
.new_dataset::<u64>()
|
||||
.resizable(true)
|
||||
.chunk((1,))
|
||||
.create("t", (0,))?;
|
||||
|
||||
for (name, grid) in names.iter().zip(grids.iter()) {
|
||||
let g = file.create_group(name)?;
|
||||
g.link_soft("/t", "t").unwrap();
|
||||
|
||||
let add_dim = |name| {
|
||||
g.new_dataset::<Float>()
|
||||
.chunk((grid.ny(), grid.nx()))
|
||||
.gzip(9)
|
||||
.create(name, (grid.ny(), grid.nx()))
|
||||
};
|
||||
let xds = add_dim("x")?;
|
||||
xds.write(grid.x())?;
|
||||
let yds = add_dim("y")?;
|
||||
yds.write(grid.y())?;
|
||||
|
||||
let add_var = |name| {
|
||||
g.new_dataset::<Float>()
|
||||
.gzip(3)
|
||||
.shuffle(true)
|
||||
.chunk((1, grid.ny(), grid.nx()))
|
||||
.resizable(true)
|
||||
.create(name, (0, grid.ny(), grid.nx()))
|
||||
};
|
||||
add_var("rho")?;
|
||||
add_var("rhou")?;
|
||||
add_var("rhov")?;
|
||||
add_var("e")?;
|
||||
}
|
||||
|
||||
Ok(Self(file, names))
|
||||
}
|
||||
|
||||
pub fn add_timestep(
|
||||
&self,
|
||||
t: u64,
|
||||
fields: &[euler::Field],
|
||||
) -> Result<(), Box<dyn std::error::Error>> {
|
||||
let file = &self.0;
|
||||
let tds = file.dataset("t")?;
|
||||
let tpos = tds.size();
|
||||
tds.resize((tpos + 1,))?;
|
||||
tds.write_slice(&[t], ndarray::s![tpos..tpos + 1])?;
|
||||
|
||||
for (groupname, fnow) in self.1.iter().zip(fields.iter()) {
|
||||
let g = file.group(groupname)?;
|
||||
let (tpos, ny, nx) = {
|
||||
let ds = g.dataset("rho")?;
|
||||
let shape = ds.shape();
|
||||
(shape[0], shape[1], shape[2])
|
||||
};
|
||||
|
||||
let rhods = g.dataset("rho")?;
|
||||
let rhouds = g.dataset("rhou")?;
|
||||
let rhovds = g.dataset("rhov")?;
|
||||
let eds = g.dataset("e")?;
|
||||
|
||||
let (rho, rhou, rhov, e) = fnow.components();
|
||||
rhods.resize((tpos + 1, ny, nx))?;
|
||||
rhods.write_slice(rho, ndarray::s![tpos, .., ..])?;
|
||||
|
||||
rhouds.resize((tpos + 1, ny, nx))?;
|
||||
rhouds.write_slice(rhou, ndarray::s![tpos, .., ..])?;
|
||||
|
||||
rhovds.resize((tpos + 1, ny, nx))?;
|
||||
rhovds.write_slice(rhov, ndarray::s![tpos, .., ..])?;
|
||||
|
||||
eds.resize((tpos + 1, ny, nx))?;
|
||||
eds.write_slice(e, ndarray::s![tpos, .., ..])?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
|
@ -1,225 +1,17 @@
|
|||
use argh::FromArgs;
|
||||
use rayon::prelude::*;
|
||||
|
||||
use euler::eval::Evaluator;
|
||||
use sbp::operators::SbpOperator2d;
|
||||
use sbp::*;
|
||||
|
||||
mod file;
|
||||
mod eval;
|
||||
mod input;
|
||||
mod parsing;
|
||||
use file::*;
|
||||
mod eval;
|
||||
|
||||
struct System {
|
||||
fnow: Vec<euler::Field>,
|
||||
fnext: Vec<euler::Field>,
|
||||
wb: Vec<euler::WorkBuffers>,
|
||||
k: [Vec<euler::Diff>; 4],
|
||||
grids: Vec<grid::Grid>,
|
||||
metrics: Vec<grid::Metrics>,
|
||||
bt: Vec<euler::BoundaryCharacteristics>,
|
||||
eb: Vec<euler::BoundaryStorage>,
|
||||
time: Float,
|
||||
operators: Vec<Box<dyn SbpOperator2d>>,
|
||||
}
|
||||
|
||||
use std::sync::atomic::{AtomicBool, Ordering};
|
||||
pub(crate) static MULTITHREAD: AtomicBool = AtomicBool::new(false);
|
||||
|
||||
impl integrate::Integrable for System {
|
||||
type State = Vec<euler::Field>;
|
||||
type Diff = Vec<euler::Diff>;
|
||||
|
||||
fn scaled_add(s: &mut Self::State, o: &Self::Diff, scale: Float) {
|
||||
if MULTITHREAD.load(Ordering::Acquire) {
|
||||
s.par_iter_mut()
|
||||
.zip(o.par_iter())
|
||||
.for_each(|(s, o)| euler::Field::scaled_add(s, o, scale))
|
||||
} else {
|
||||
s.iter_mut()
|
||||
.zip(o.iter())
|
||||
.for_each(|(s, o)| euler::Field::scaled_add(s, o, scale))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl System {
|
||||
fn new(
|
||||
grids: Vec<grid::Grid>,
|
||||
bt: Vec<euler::BoundaryCharacteristics>,
|
||||
operators: Vec<Box<dyn SbpOperator2d>>,
|
||||
) -> Self {
|
||||
let fnow = grids
|
||||
.iter()
|
||||
.map(|g| euler::Field::new(g.ny(), g.nx()))
|
||||
.collect::<Vec<_>>();
|
||||
let fnext = fnow.clone();
|
||||
let wb = grids
|
||||
.iter()
|
||||
.map(|g| euler::WorkBuffers::new(g.ny(), g.nx()))
|
||||
.collect();
|
||||
let k = grids
|
||||
.iter()
|
||||
.map(|g| euler::Diff::zeros((g.ny(), g.nx())))
|
||||
.collect::<Vec<_>>();
|
||||
let k = [k.clone(), k.clone(), k.clone(), k];
|
||||
let metrics = grids
|
||||
.iter()
|
||||
.zip(&operators)
|
||||
.map(|(g, op)| g.metrics(&**op).unwrap())
|
||||
.collect::<Vec<_>>();
|
||||
|
||||
let eb = bt
|
||||
.iter()
|
||||
.zip(&grids)
|
||||
.map(|(bt, grid)| euler::BoundaryStorage::new(bt, grid))
|
||||
.collect();
|
||||
|
||||
Self {
|
||||
fnow,
|
||||
fnext,
|
||||
k,
|
||||
wb,
|
||||
grids,
|
||||
metrics,
|
||||
bt,
|
||||
eb,
|
||||
time: 0.0,
|
||||
operators,
|
||||
}
|
||||
}
|
||||
|
||||
fn vortex(&mut self, t: Float, vortex_params: &euler::VortexParameters) {
|
||||
for (f, g) in self.fnow.iter_mut().zip(&self.grids) {
|
||||
f.vortex(g.x(), g.y(), t, &vortex_params);
|
||||
}
|
||||
}
|
||||
|
||||
fn advance(&mut self, dt: Float) {
|
||||
let metrics = &self.metrics;
|
||||
let grids = &self.grids;
|
||||
let bt = &self.bt;
|
||||
let wb = &mut self.wb;
|
||||
let eb = &mut self.eb;
|
||||
let operators = &self.operators;
|
||||
|
||||
let rhs = move |fut: &mut Vec<euler::Diff>, prev: &Vec<euler::Field>, time: Float| {
|
||||
let prev_all = &prev;
|
||||
if MULTITHREAD.load(Ordering::Acquire) {
|
||||
rayon::scope(|s| {
|
||||
for (((((((fut, prev), wb), grid), metrics), op), bt), eb) in fut
|
||||
.iter_mut()
|
||||
.zip(prev.iter())
|
||||
.zip(wb.iter_mut())
|
||||
.zip(grids)
|
||||
.zip(metrics.iter())
|
||||
.zip(operators.iter())
|
||||
.zip(bt.iter())
|
||||
.zip(eb.iter_mut())
|
||||
{
|
||||
s.spawn(move |_| {
|
||||
let bc = euler::boundary_extracts(prev_all, bt, prev, grid, eb, time);
|
||||
if op.upwind().is_some() {
|
||||
euler::RHS_upwind(&**op, fut, prev, metrics, &bc, &mut wb.0);
|
||||
} else {
|
||||
euler::RHS_trad(&**op, fut, prev, metrics, &bc, &mut wb.0);
|
||||
}
|
||||
})
|
||||
}
|
||||
});
|
||||
} else {
|
||||
for (((((((fut, prev), wb), grid), metrics), op), bt), eb) in fut
|
||||
.iter_mut()
|
||||
.zip(prev.iter())
|
||||
.zip(wb.iter_mut())
|
||||
.zip(grids)
|
||||
.zip(metrics.iter())
|
||||
.zip(operators.iter())
|
||||
.zip(bt.iter())
|
||||
.zip(eb.iter_mut())
|
||||
{
|
||||
let bc = euler::boundary_extracts(prev_all, bt, prev, grid, eb, time);
|
||||
if op.upwind().is_some() {
|
||||
euler::RHS_upwind(&**op, fut, prev, metrics, &bc, &mut wb.0);
|
||||
} else {
|
||||
euler::RHS_trad(&**op, fut, prev, metrics, &bc, &mut wb.0);
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
integrate::integrate::<integrate::Rk4, System, _>(
|
||||
rhs,
|
||||
&self.fnow,
|
||||
&mut self.fnext,
|
||||
&mut self.time,
|
||||
dt,
|
||||
&mut self.k,
|
||||
);
|
||||
|
||||
std::mem::swap(&mut self.fnow, &mut self.fnext);
|
||||
}
|
||||
|
||||
/// Suggested maximum dt for this problem
|
||||
fn max_dt(&self) -> Float {
|
||||
let is_h2 = self
|
||||
.operators
|
||||
.iter()
|
||||
.any(|op| op.is_h2xi() || op.is_h2eta());
|
||||
let c_max = if is_h2 { 0.5 } else { 1.0 };
|
||||
let mut max_dt: Float = Float::INFINITY;
|
||||
|
||||
for (field, metrics) in self.fnow.iter().zip(self.metrics.iter()) {
|
||||
let nx = field.nx();
|
||||
let ny = field.ny();
|
||||
|
||||
let rho = field.rho();
|
||||
let rhou = field.rhou();
|
||||
let rhov = field.rhov();
|
||||
|
||||
let mut max_u: Float = 0.0;
|
||||
let mut max_v: Float = 0.0;
|
||||
|
||||
for ((((((rho, rhou), rhov), detj_dxi_dx), detj_dxi_dy), detj_deta_dx), detj_deta_dy) in
|
||||
rho.iter()
|
||||
.zip(rhou.iter())
|
||||
.zip(rhov.iter())
|
||||
.zip(metrics.detj_dxi_dx())
|
||||
.zip(metrics.detj_dxi_dy())
|
||||
.zip(metrics.detj_deta_dx())
|
||||
.zip(metrics.detj_deta_dy())
|
||||
{
|
||||
let u = rhou / rho;
|
||||
let v = rhov / rho;
|
||||
|
||||
let uhat: Float = detj_dxi_dx * u + detj_dxi_dy * v;
|
||||
let vhat: Float = detj_deta_dx * u + detj_deta_dy * v;
|
||||
|
||||
max_u = max_u.max(uhat.abs());
|
||||
max_v = max_v.max(vhat.abs());
|
||||
}
|
||||
|
||||
let dx = 1.0 / nx as Float;
|
||||
let dy = 1.0 / ny as Float;
|
||||
|
||||
let c_dt = Float::max(max_u / dx, max_v / dy);
|
||||
|
||||
max_dt = Float::min(max_dt, c_max / c_dt);
|
||||
}
|
||||
|
||||
max_dt
|
||||
}
|
||||
}
|
||||
mod system;
|
||||
|
||||
#[derive(Debug, FromArgs)]
|
||||
/// Options for configuring and running the solver
|
||||
struct CliOptions {
|
||||
#[argh(positional)]
|
||||
json: std::path::PathBuf,
|
||||
/// number of simultaneous threads
|
||||
#[argh(option, short = 'j')]
|
||||
jobs: Option<usize>,
|
||||
/// name of output file
|
||||
#[argh(
|
||||
option,
|
||||
|
|
@ -243,6 +35,9 @@ struct CliOptions {
|
|||
/// in json format
|
||||
#[argh(switch)]
|
||||
output_json: bool,
|
||||
/// distribute the computation on multiple threads
|
||||
#[argh(switch)]
|
||||
distribute: bool,
|
||||
}
|
||||
|
||||
#[derive(Default, serde::Serialize)]
|
||||
|
|
@ -272,116 +67,87 @@ fn main() {
|
|||
return;
|
||||
}
|
||||
};
|
||||
|
||||
let parsing::RuntimeConfiguration {
|
||||
names,
|
||||
grids,
|
||||
grid_connections,
|
||||
boundary_conditions,
|
||||
op: operators,
|
||||
integration_time,
|
||||
initial_conditions,
|
||||
boundary_conditions: _,
|
||||
} = config.into_runtime();
|
||||
|
||||
let mut sys = System::new(grids, grid_connections, operators);
|
||||
match &initial_conditions {
|
||||
/*
|
||||
parsing::InitialConditions::File(f) => {
|
||||
for grid in &sys.grids {
|
||||
// Copy initial conditions from file, requires name of field
|
||||
todo!()
|
||||
}
|
||||
}
|
||||
*/
|
||||
parsing::InitialConditions::Vortex(vortexparams) => sys.vortex(0.0, &vortexparams),
|
||||
parsing::InitialConditions::Expressions(expr) => {
|
||||
let t = 0.0;
|
||||
for (grid, field) in sys.grids.iter().zip(sys.fnow.iter_mut()) {
|
||||
// Evaluate the expressions on all variables
|
||||
let x = grid.x();
|
||||
let y = grid.y();
|
||||
let (rho, rhou, rhov, e) = field.components_mut();
|
||||
(*expr).evaluate(t, x, y, rho, rhou, rhov, e);
|
||||
}
|
||||
}
|
||||
}
|
||||
let basesystem = system::BaseSystem::new(
|
||||
names,
|
||||
grids,
|
||||
0.0,
|
||||
operators,
|
||||
boundary_conditions,
|
||||
initial_conditions,
|
||||
opt.output.clone(),
|
||||
);
|
||||
|
||||
let dt = sys.max_dt();
|
||||
|
||||
let ntime = (integration_time / dt).round() as u64;
|
||||
|
||||
{
|
||||
let nthreads = opt.jobs.unwrap_or(1);
|
||||
if nthreads > 1 {
|
||||
MULTITHREAD.store(true, Ordering::Release);
|
||||
rayon::ThreadPoolBuilder::new()
|
||||
.num_threads(nthreads)
|
||||
.build_global()
|
||||
.unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
let should_output = |itime| {
|
||||
opt.number_of_outputs.map_or(false, |num_out| {
|
||||
if num_out == 0 {
|
||||
false
|
||||
let mut sys = if opt.distribute {
|
||||
basesystem.create_distributed()
|
||||
} else {
|
||||
itime % (std::cmp::max(ntime / (num_out - 1), 1)) == 0
|
||||
}
|
||||
})
|
||||
basesystem.create()
|
||||
};
|
||||
|
||||
let output = File::create(&opt.output, sys.grids.as_slice(), names).unwrap();
|
||||
let mut output = OutputThread::new(output);
|
||||
output.add_timestep(0, &sys.fnow);
|
||||
let dt = sys.max_dt();
|
||||
sys.set_dt(dt);
|
||||
let ntime = (integration_time / dt).round() as u64;
|
||||
let steps_between_outputs = if let Some(n) = opt.number_of_outputs {
|
||||
std::cmp::max(n / ntime, 1)
|
||||
} else {
|
||||
ntime
|
||||
};
|
||||
|
||||
let progressbar = progressbar(opt.no_progressbar, ntime);
|
||||
sys.output(0);
|
||||
|
||||
if !opt.no_progressbar {
|
||||
sys.add_progressbar(ntime)
|
||||
}
|
||||
|
||||
let timer = if opt.timings {
|
||||
if let system::System::MultiThreaded(sys) = &sys {
|
||||
sys.synchronise()
|
||||
}
|
||||
Some(std::time::Instant::now())
|
||||
} else {
|
||||
None
|
||||
};
|
||||
|
||||
for itime in 0..ntime {
|
||||
if should_output(itime) {
|
||||
output.add_timestep(itime, &sys.fnow);
|
||||
let mut itime = 0;
|
||||
while itime < ntime {
|
||||
let nexttime = (itime + steps_between_outputs).max(ntime);
|
||||
sys.advance(nexttime - itime);
|
||||
|
||||
itime = nexttime;
|
||||
if itime != ntime {
|
||||
sys.output(itime);
|
||||
}
|
||||
progressbar.inc(1);
|
||||
sys.advance(dt);
|
||||
}
|
||||
progressbar.finish_and_clear();
|
||||
|
||||
let timer = timer.map(|timer| {
|
||||
if let system::System::MultiThreaded(sys) = &sys {
|
||||
sys.synchronise();
|
||||
}
|
||||
|
||||
timer.elapsed()
|
||||
});
|
||||
sys.output(ntime);
|
||||
|
||||
let mut outinfo = OutputInformation {
|
||||
filename: opt.output,
|
||||
time_elapsed: timer,
|
||||
..Default::default()
|
||||
};
|
||||
|
||||
if let Some(timer) = timer {
|
||||
let duration = timer.elapsed();
|
||||
outinfo.time_elapsed = Some(duration);
|
||||
if !opt.no_progressbar {
|
||||
sys.finish_progressbar();
|
||||
}
|
||||
|
||||
output.add_timestep(ntime, &sys.fnow);
|
||||
|
||||
if opt.error {
|
||||
let time = ntime as Float * dt;
|
||||
let mut e = 0.0;
|
||||
for ((fmod, grid), op) in sys.fnow.iter().zip(&sys.grids).zip(&sys.operators) {
|
||||
let mut fvort = fmod.clone();
|
||||
match &initial_conditions {
|
||||
parsing::InitialConditions::Vortex(vortexparams) => {
|
||||
fvort.vortex(grid.x(), grid.y(), time, &vortexparams);
|
||||
}
|
||||
parsing::InitialConditions::Expressions(expr) => {
|
||||
let (rho, rhou, rhov, e) = fvort.components_mut();
|
||||
expr.as_ref()
|
||||
.evaluate(time, grid.x(), grid.y(), rho, rhou, rhov, e)
|
||||
}
|
||||
}
|
||||
e += fmod.h2_err(&fvort, &**op);
|
||||
}
|
||||
outinfo.error = Some(e);
|
||||
outinfo.error = Some(sys.error())
|
||||
}
|
||||
|
||||
if opt.output_json {
|
||||
|
|
@ -396,14 +162,10 @@ fn main() {
|
|||
}
|
||||
}
|
||||
|
||||
fn progressbar(dummy: bool, ntime: u64) -> indicatif::ProgressBar {
|
||||
if dummy {
|
||||
indicatif::ProgressBar::hidden()
|
||||
} else {
|
||||
fn progressbar(ntime: u64) -> indicatif::ProgressBar {
|
||||
let progressbar = indicatif::ProgressBar::new(ntime);
|
||||
progressbar.with_style(
|
||||
indicatif::ProgressStyle::default_bar()
|
||||
.template("{wide_bar:.cyan/blue} {pos}/{len} ({eta})"),
|
||||
)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ pub enum InitialConditions {
|
|||
}
|
||||
|
||||
#[derive(Clone, Debug)]
|
||||
pub enum BoundaryConditions {
|
||||
enum BoundaryConditions {
|
||||
Vortex(euler::VortexParameters),
|
||||
Expressions(std::sync::Arc<eval::Evaluator>),
|
||||
NotNeeded,
|
||||
|
|
@ -36,11 +36,10 @@ pub enum BoundaryConditions {
|
|||
pub struct RuntimeConfiguration {
|
||||
pub names: Vec<String>,
|
||||
pub grids: Vec<sbp::grid::Grid>,
|
||||
pub grid_connections: Vec<euler::BoundaryCharacteristics>,
|
||||
pub boundary_conditions: Vec<euler::BoundaryCharacteristics>,
|
||||
pub op: Vec<Box<dyn SbpOperator2d>>,
|
||||
pub integration_time: Float,
|
||||
pub initial_conditions: InitialConditions,
|
||||
pub boundary_conditions: BoundaryConditions,
|
||||
}
|
||||
|
||||
impl input::Configuration {
|
||||
|
|
@ -165,11 +164,10 @@ impl input::Configuration {
|
|||
Box::new((matcher(eta), matcher(xi))) as Box<dyn SbpOperator2d>
|
||||
})
|
||||
.collect();
|
||||
let grid_connections = self
|
||||
let boundary_conditions = self
|
||||
.grids
|
||||
.iter()
|
||||
.enumerate()
|
||||
.map(|(i, (name, g))| {
|
||||
.map(|(name, g)| {
|
||||
let default_bc = default.boundary_conditions.clone().unwrap_or_default();
|
||||
use input::BoundaryType;
|
||||
g.boundary_conditions
|
||||
|
|
@ -190,7 +188,7 @@ impl input::Configuration {
|
|||
name
|
||||
),
|
||||
},
|
||||
Some(BoundaryType::This) => euler::BoundaryCharacteristic::Grid(i),
|
||||
Some(BoundaryType::This) => euler::BoundaryCharacteristic::This,
|
||||
Some(BoundaryType::Vortex) => euler::BoundaryCharacteristic::Vortex(
|
||||
if let BoundaryConditions::Vortex(vortex) = &boundary_conditions {
|
||||
vortex.clone()
|
||||
|
|
@ -227,11 +225,10 @@ impl input::Configuration {
|
|||
RuntimeConfiguration {
|
||||
names,
|
||||
grids,
|
||||
grid_connections,
|
||||
boundary_conditions,
|
||||
op,
|
||||
integration_time: self.integration_time,
|
||||
initial_conditions,
|
||||
boundary_conditions,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -12,7 +12,7 @@ serde = { version = "1.0.115", optional = true, default-features = false, featur
|
|||
num-traits = "0.2.14"
|
||||
float = { path = "../utils/float" }
|
||||
constmatrix = { path = "../utils/constmatrix" }
|
||||
core_simd = { git = "https://github.com/rust-lang/stdsimd" }
|
||||
core_simd = { git = "https://github.com/rust-lang/portable-simd" }
|
||||
|
||||
[features]
|
||||
# Use f32 as precision, default is f64
|
||||
|
|
|
|||
|
|
@ -281,6 +281,7 @@ pub(crate) fn diff_op_2d_fallback<const M: usize, const N: usize, const D: usize
|
|||
#[inline(always)]
|
||||
/// 2D diff when first axis is contiguous
|
||||
#[allow(unused)]
|
||||
#[allow(clippy::assign_op_pattern)]
|
||||
pub(crate) fn diff_op_2d_sliceable_y<const M: usize, const N: usize, const D: usize>(
|
||||
matrix: &BlockMatrix<Float, M, N, D>,
|
||||
optype: OperatorType,
|
||||
|
|
@ -392,7 +393,6 @@ pub(crate) fn diff_op_2d_sliceable_y_simd<const M: usize, const N: usize, const
|
|||
};
|
||||
let idx = 1.0 / dx;
|
||||
|
||||
use core_simd::Vector;
|
||||
#[cfg(not(feature = "f32"))]
|
||||
type SimdT = core_simd::f64x8;
|
||||
#[cfg(feature = "f32")]
|
||||
|
|
|
|||
|
|
@ -53,6 +53,28 @@ impl<T> Direction<T> {
|
|||
east: (self.east, other.east),
|
||||
}
|
||||
}
|
||||
|
||||
/// Flips all direction through origo
|
||||
pub fn opposite(self) -> Self {
|
||||
Self {
|
||||
north: self.south,
|
||||
south: self.north,
|
||||
east: self.west,
|
||||
west: self.east,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn splat(t: T) -> Self
|
||||
where
|
||||
T: Copy,
|
||||
{
|
||||
Self {
|
||||
north: t,
|
||||
south: t,
|
||||
east: t,
|
||||
west: t,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<T> Direction<Option<T>> {
|
||||
|
|
@ -96,6 +118,15 @@ impl<T> Direction<T> {
|
|||
}
|
||||
}
|
||||
|
||||
impl Direction<bool> {
|
||||
pub fn all(&self) -> bool {
|
||||
self.north && self.south && self.east && self.west
|
||||
}
|
||||
pub fn any(&self) -> bool {
|
||||
self.north || self.south || self.east || self.west
|
||||
}
|
||||
}
|
||||
|
||||
/// Linearly spaced parameters, apart from the boundaries which
|
||||
/// only have a distance of `h/2` from the boundary
|
||||
pub fn h2linspace(start: Float, end: Float, n: usize) -> ndarray::Array1<Float> {
|
||||
|
|
|
|||
|
|
@ -215,7 +215,7 @@ pub fn integrate<BTableau: ButcherTableau, F: Integrable, RHS>(
|
|||
}
|
||||
};
|
||||
|
||||
rhs(&mut k[i], &fut, simtime);
|
||||
rhs(&mut k[i], fut, simtime);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue