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This commit is contained in:
Magnus Ulimoen
2020-05-01 00:09:46 +02:00
parent 177a6abd99
commit 78da9baaea
7 changed files with 189 additions and 43 deletions
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52
sbp/src/operators.rs
View File

@@ -115,11 +115,11 @@ pub trait InterpolationOperator: Send + Sync {
}
#[inline(always)]
pub(crate) fn diff_op_1d(
fn diff_op_1d(
block: &[&[Float]],
diag: &[Float],
symmetric: bool,
is_h2: bool,
symmetry: Symmetry,
optype: OperatorType,
prev: ArrayView1<Float>,
mut fut: ArrayViewMut1<Float>,
) {
@@ -127,7 +127,7 @@ pub(crate) fn diff_op_1d(
let nx = prev.shape()[0];
assert!(nx >= 2 * block.len());
let dx = if is_h2 {
let dx = if optype == OperatorType::H2 {
1.0 / (nx - 2) as Float
} else {
1.0 / (nx - 1) as Float
@@ -165,16 +165,33 @@ pub(crate) fn diff_op_1d(
.map(|(x, y)| x * y)
.sum::<Float>();
*f = idx * if symmetric { diff } else { -diff };
*f = idx
* if symmetry == Symmetry::Symmetric {
diff
} else {
-diff
};
}
}
#[derive(PartialEq, Copy, Clone)]
enum Symmetry {
Symmetric,
AntiSymmetric,
}
#[derive(PartialEq, Copy, Clone)]
enum OperatorType {
Normal,
H2,
}
#[inline(always)]
pub(crate) fn diff_op_col(
fn diff_op_col(
block: &'static [&'static [Float]],
diag: &'static [Float],
symmetric: bool,
is_h2: bool,
symmetry: Symmetry,
optype: OperatorType,
) -> impl Fn(ArrayView2<Float>, ArrayViewMut2<Float>) {
#[inline(always)]
move |prev: ArrayView2<Float>, mut fut: ArrayViewMut2<Float>| {
@@ -185,7 +202,7 @@ pub(crate) fn diff_op_col(
assert_eq!(prev.strides()[0], 1);
assert_eq!(fut.strides()[0], 1);
let dx = if is_h2 {
let dx = if optype == OperatorType::H2 {
1.0 / (nx - 2) as Float
} else {
1.0 / (nx - 1) as Float
@@ -249,7 +266,7 @@ pub(crate) fn diff_op_col(
for (bl, mut fut) in block.iter().zip(fut.axis_iter_mut(ndarray::Axis(1)).rev()) {
fut.fill(0.0);
for (&bl, prev) in bl.iter().zip(prev.axis_iter(ndarray::Axis(1)).rev()) {
if symmetric {
if symmetry == Symmetry::Symmetric {
fut.scaled_add(idx * bl, &prev);
} else {
fut.scaled_add(-idx * bl, &prev);
@@ -260,11 +277,11 @@ pub(crate) fn diff_op_col(
}
#[inline(always)]
pub(crate) fn diff_op_row(
fn diff_op_row(
block: &'static [&'static [Float]],
diag: &'static [Float],
symmetric: bool,
is_h2: bool,
symmetry: Symmetry,
optype: OperatorType,
) -> impl Fn(ArrayView2<Float>, ArrayViewMut2<Float>) {
#[inline(always)]
move |prev: ArrayView2<Float>, mut fut: ArrayViewMut2<Float>| {
@@ -275,7 +292,7 @@ pub(crate) fn diff_op_row(
assert_eq!(prev.strides()[1], 1);
assert_eq!(fut.strides()[1], 1);
let dx = if is_h2 {
let dx = if optype == OperatorType::H2 {
1.0 / (nx - 2) as Float
} else {
1.0 / (nx - 1) as Float
@@ -319,7 +336,12 @@ pub(crate) fn diff_op_row(
.map(|(x, y)| x * y)
.sum::<Float>();
*f = idx * if symmetric { diff } else { -diff };
*f = idx
* if symmetry == Symmetry::Symmetric {
diff
} else {
-diff
};
}
}
}

16
sbp/src/operators/traditional4.rs
View File

@@ -25,7 +25,14 @@ impl SBP4 {
impl SbpOperator1d for SBP4 {
fn diff(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::BLOCK, Self::DIAG, false, false, prev, fut)
super::diff_op_1d(
Self::BLOCK,
Self::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::Normal,
prev,
fut,
)
}
fn h(&self) -> &'static [Float] {
@@ -38,12 +45,15 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &SBP4) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * SBP4::BLOCK.len());
let symmetry = super::Symmetry::AntiSymmetric;
let optype = super::OperatorType::Normal;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(SBP4::BLOCK, SBP4::DIAG, false, false)(prev, fut);
diff_op_row(SBP4::BLOCK, SBP4::DIAG, symmetry, optype)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(SBP4::BLOCK, SBP4::DIAG, false, false)(prev, fut);
diff_op_col(SBP4::BLOCK, SBP4::DIAG, symmetry, optype)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row

16
sbp/src/operators/traditional8.rs
View File

@@ -29,7 +29,14 @@ impl SBP8 {
impl SbpOperator1d for SBP8 {
fn diff(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::BLOCK, Self::DIAG, false, false, prev, fut)
super::diff_op_1d(
Self::BLOCK,
Self::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::Normal,
prev,
fut,
)
}
fn h(&self) -> &'static [Float] {
@@ -42,12 +49,15 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &SBP8) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * SBP8::BLOCK.len());
let symmetry = super::Symmetry::AntiSymmetric;
let optype = super::OperatorType::Normal;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(SBP8::BLOCK, SBP8::DIAG, false, false)(prev, fut);
diff_op_row(SBP8::BLOCK, SBP8::DIAG, symmetry, optype)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(SBP8::BLOCK, SBP8::DIAG, false, false)(prev, fut);
diff_op_col(SBP8::BLOCK, SBP8::DIAG, symmetry, optype)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row

32
sbp/src/operators/upwind4.rs
View File

@@ -195,7 +195,14 @@ impl Upwind4 {
impl SbpOperator1d for Upwind4 {
fn diff(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::BLOCK, Self::DIAG, false, false, prev, fut)
super::diff_op_1d(
Self::BLOCK,
Self::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::Normal,
prev,
fut,
)
}
fn h(&self) -> &'static [Float] {
Self::HBLOCK
@@ -209,7 +216,12 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &Upwind4) {
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind4::BLOCK, Upwind4::DIAG, false, false)(prev, fut);
diff_op_row(
Upwind4::BLOCK,
Upwind4::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::Normal,
)(prev, fut);
}
([1, _], [1, _]) if prev.len_of(Axis(0)) % SimdT::lanes() == 0 => {
diff_simd_col(prev, fut);
@@ -315,7 +327,14 @@ fn upwind4_test() {
impl UpwindOperator1d for Upwind4 {
fn diss(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::DISS_BLOCK, Self::DISS_DIAG, true, false, prev, fut)
super::diff_op_1d(
Self::DISS_BLOCK,
Self::DISS_DIAG,
super::Symmetry::Symmetric,
super::OperatorType::Normal,
prev,
fut,
)
}
fn as_sbp(&self) -> &dyn SbpOperator1d {
@@ -330,7 +349,12 @@ impl<UO: UpwindOperator1d> UpwindOperator2d for (&UO, &Upwind4) {
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind4::DISS_BLOCK, Upwind4::DISS_DIAG, true, false)(prev, fut);
diff_op_row(
Upwind4::DISS_BLOCK,
Upwind4::DISS_DIAG,
super::Symmetry::Symmetric,
super::OperatorType::Normal,
)(prev, fut);
}
([1, _], [1, _]) if prev.len_of(Axis(0)) % SimdT::lanes() == 0 => {
diss_simd_col(prev, fut);

42
sbp/src/operators/upwind4h2.rs
View File

@@ -40,7 +40,14 @@ impl Upwind4h2 {
impl SbpOperator1d for Upwind4h2 {
fn diff(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::BLOCK, Self::DIAG, false, true, prev, fut)
super::diff_op_1d(
Self::BLOCK,
Self::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::H2,
prev,
fut,
)
}
fn h(&self) -> &'static [Float] {
@@ -56,12 +63,15 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &Upwind4h2) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * Upwind4h2::BLOCK.len());
let symmetry = super::Symmetry::AntiSymmetric;
let optype = super::OperatorType::H2;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind4h2::BLOCK, Upwind4h2::DIAG, false, true)(prev, fut);
diff_op_row(Upwind4h2::BLOCK, Upwind4h2::DIAG, symmetry, optype)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(Upwind4h2::BLOCK, Upwind4h2::DIAG, false, true)(prev, fut);
diff_op_col(Upwind4h2::BLOCK, Upwind4h2::DIAG, symmetry, optype)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row
@@ -79,12 +89,25 @@ impl<UO: UpwindOperator1d> UpwindOperator2d for (&UO, &Upwind4h2) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * Upwind4h2::BLOCK.len());
let symmetry = super::Symmetry::Symmetric;
let optype = super::OperatorType::H2;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind4h2::DISS_BLOCK, Upwind4h2::DISS_DIAG, true, true)(prev, fut);
diff_op_row(
Upwind4h2::DISS_BLOCK,
Upwind4h2::DISS_DIAG,
symmetry,
optype,
)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(Upwind4h2::DISS_BLOCK, Upwind4h2::DISS_DIAG, true, true)(prev, fut);
diff_op_col(
Upwind4h2::DISS_BLOCK,
Upwind4h2::DISS_DIAG,
symmetry,
optype,
)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row
@@ -124,7 +147,14 @@ fn upwind4h2_test() {
impl UpwindOperator1d for Upwind4h2 {
fn diss(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::DISS_BLOCK, Self::DISS_DIAG, true, true, prev, fut)
super::diff_op_1d(
Self::DISS_BLOCK,
Self::DISS_DIAG,
super::Symmetry::Symmetric,
super::OperatorType::H2,
prev,
fut,
)
}
fn as_sbp(&self) -> &dyn SbpOperator1d {

32
sbp/src/operators/upwind9.rs
View File

@@ -48,7 +48,14 @@ impl Upwind9 {
impl SbpOperator1d for Upwind9 {
fn diff(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::BLOCK, Self::DIAG, false, false, prev, fut)
super::diff_op_1d(
Self::BLOCK,
Self::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::Normal,
prev,
fut,
)
}
fn h(&self) -> &'static [Float] {
@@ -61,12 +68,15 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &Upwind9) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * Upwind9::BLOCK.len());
let symmetry = super::Symmetry::AntiSymmetric;
let optype = super::OperatorType::Normal;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind9::BLOCK, Upwind9::DIAG, false, false)(prev, fut);
diff_op_row(Upwind9::BLOCK, Upwind9::DIAG, symmetry, optype)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(Upwind9::BLOCK, Upwind9::DIAG, false, false)(prev, fut);
diff_op_col(Upwind9::BLOCK, Upwind9::DIAG, symmetry, optype)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row
@@ -81,7 +91,14 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &Upwind9) {
impl UpwindOperator1d for Upwind9 {
fn diss(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::DISS_BLOCK, Self::DISS_DIAG, true, false, prev, fut)
super::diff_op_1d(
Self::DISS_BLOCK,
Self::DISS_DIAG,
super::Symmetry::Symmetric,
super::OperatorType::Normal,
prev,
fut,
)
}
fn as_sbp(&self) -> &dyn SbpOperator1d {
@@ -94,12 +111,15 @@ impl<UO: UpwindOperator1d> UpwindOperator2d for (&UO, &Upwind9) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * Upwind9::BLOCK.len());
let symmetry = super::Symmetry::Symmetric;
let optype = super::OperatorType::Normal;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind9::DISS_BLOCK, Upwind9::DISS_DIAG, true, false)(prev, fut);
diff_op_row(Upwind9::DISS_BLOCK, Upwind9::DISS_DIAG, symmetry, optype)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(Upwind9::DISS_BLOCK, Upwind9::DISS_DIAG, true, false)(prev, fut);
diff_op_col(Upwind9::DISS_BLOCK, Upwind9::DISS_DIAG, symmetry, optype)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row

42
sbp/src/operators/upwind9h2.rs
View File

@@ -48,7 +48,14 @@ impl Upwind9h2 {
impl SbpOperator1d for Upwind9h2 {
fn diff(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::BLOCK, Self::DIAG, false, true, prev, fut)
super::diff_op_1d(
Self::BLOCK,
Self::DIAG,
super::Symmetry::AntiSymmetric,
super::OperatorType::H2,
prev,
fut,
)
}
fn h(&self) -> &'static [Float] {
@@ -64,12 +71,15 @@ impl<SBP: SbpOperator1d> SbpOperator2d for (&SBP, &Upwind9h2) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * Upwind9h2::BLOCK.len());
let symmetry = super::Symmetry::AntiSymmetric;
let optype = super::OperatorType::H2;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind9h2::BLOCK, Upwind9h2::DIAG, false, true)(prev, fut);
diff_op_row(Upwind9h2::BLOCK, Upwind9h2::DIAG, symmetry, optype)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(Upwind9h2::BLOCK, Upwind9h2::DIAG, false, true)(prev, fut);
diff_op_col(Upwind9h2::BLOCK, Upwind9h2::DIAG, symmetry, optype)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row
@@ -109,7 +119,14 @@ fn upwind9h2_test() {
impl UpwindOperator1d for Upwind9h2 {
fn diss(&self, prev: ArrayView1<Float>, fut: ArrayViewMut1<Float>) {
super::diff_op_1d(Self::DISS_BLOCK, Self::DISS_DIAG, true, true, prev, fut)
super::diff_op_1d(
Self::DISS_BLOCK,
Self::DISS_DIAG,
super::Symmetry::Symmetric,
super::OperatorType::H2,
prev,
fut,
)
}
fn as_sbp(&self) -> &dyn SbpOperator1d {
self
@@ -121,12 +138,25 @@ impl<UO: UpwindOperator1d> UpwindOperator2d for (&UO, &Upwind9h2) {
assert_eq!(prev.shape(), fut.shape());
assert!(prev.shape()[1] >= 2 * Upwind9h2::BLOCK.len());
let symmetry = super::Symmetry::Symmetric;
let optype = super::OperatorType::H2;
match (prev.strides(), fut.strides()) {
([_, 1], [_, 1]) => {
diff_op_row(Upwind9h2::DISS_BLOCK, Upwind9h2::DISS_DIAG, true, true)(prev, fut);
diff_op_row(
Upwind9h2::DISS_BLOCK,
Upwind9h2::DISS_DIAG,
symmetry,
optype,
)(prev, fut);
}
([1, _], [1, _]) => {
diff_op_col(Upwind9h2::DISS_BLOCK, Upwind9h2::DISS_DIAG, true, true)(prev, fut);
diff_op_col(
Upwind9h2::DISS_BLOCK,
Upwind9h2::DISS_DIAG,
symmetry,
optype,
)(prev, fut);
}
([_, _], [_, _]) => {
// Fallback, work row by row