Skip to content

Adding SIMD Sum #133

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Adding SIMD Sum #133

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
90 changes: 86 additions & 4 deletions src/lib.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1507,21 +1507,103 @@ impl<T: Num + Clone> Num for Complex<T> {
}
}

#[derive(Clone, Copy)]
struct ComplexSIMD<T>([Complex<T>; 4]);

impl<T: Clone + Num> ComplexSIMD<T> {
fn sum(&self) -> Complex<T> {
self.0[0].clone() + self.0[1].clone() + self.0[2].clone() + self.0[3].clone()
}
}

impl<T: Clone + Num> Add for ComplexSIMD<T> {
type Output = ComplexSIMD<T>;

fn add(self, rhs: Self) -> Self::Output {
Self([
self.0[0].clone() + rhs.0[0].clone(),
self.0[1].clone() + rhs.0[1].clone(),
self.0[2].clone() + rhs.0[2].clone(),
self.0[3].clone() + rhs.0[3].clone(),
])
}
}

impl<T: Num + Clone> Sum for Complex<T> {
fn sum<I>(iter: I) -> Self
fn sum<I>(mut iter: I) -> Self
where
I: Iterator<Item = Self>,
{
iter.fold(Self::zero(), |acc, c| acc + c)
let mut complex_sum = ComplexSIMD::<T>([
Complex::zero(),
Complex::zero(),
Complex::zero(),
Complex::zero(),
]);
loop {
if let Some(val0) = iter.next() {
if let Some(val1) = iter.next() {
if let Some(val2) = iter.next() {
if let Some(val3) = iter.next() {
complex_sum = complex_sum
+ ComplexSIMD::<T>([
val0.clone(),
val1.clone(),
val2.clone(),
val3.clone(),
]);
} else {
return complex_sum.sum() + val0 + val1 + val2;
}
} else {
return complex_sum.sum() + val0 + val1;
}
} else {
return complex_sum.sum() + val0;
}
} else {
return complex_sum.sum();
}
}
}
}

impl<'a, T: 'a + Num + Clone> Sum<&'a Complex<T>> for Complex<T> {
fn sum<I>(iter: I) -> Self
fn sum<I>(mut iter: I) -> Self
where
I: Iterator<Item = &'a Complex<T>>,
{
iter.fold(Self::zero(), |acc, c| acc + c)
let mut complex_sum = ComplexSIMD::<T>([
Complex::zero(),
Complex::zero(),
Complex::zero(),
Complex::zero(),
]);
loop {
if let Some(val0) = iter.next() {
if let Some(val1) = iter.next() {
if let Some(val2) = iter.next() {
if let Some(val3) = iter.next() {
complex_sum = complex_sum
+ ComplexSIMD::<T>([
val0.clone(),
val1.clone(),
val2.clone(),
val3.clone(),
]);
} else {
return complex_sum.sum() + val0 + val1 + val2;
}
} else {
return complex_sum.sum() + val0 + val1;
}
} else {
return complex_sum.sum() + val0;
}
} else {
return complex_sum.sum();
}
}
}
}

Expand Down