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SumSquare

Struct SumSquare 

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pub struct SumSquare<'a> { /* private fields */ }
Expand description

Computes the sum of squares of a sequence of numbers.

This is conceptually equivalent to slice.iter().map(|&x| x * x).sum() but more efficient as it computes multiple partial sums in parallel using SIMD and then sums across the SIMD lanes at the end. This will produce very slightly different results because the additions are happening in a different order.

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impl<'a> SumSquare<'a>

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pub fn new(input: &'a [f32]) -> Self

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impl SimdOp for SumSquare<'_>

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type Output = f32

The type of the operation’s result.
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fn eval<I: Isa>(self, isa: I) -> Self::Output

Evaluate the operation using the given instruction set.
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fn dispatch(self) -> Self::Output
where Self: Sized,

Dispatch this operation using the preferred ISA for the current platform.

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impl<'a> Freeze for SumSquare<'a>

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impl<'a> RefUnwindSafe for SumSquare<'a>

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impl<'a> Send for SumSquare<'a>

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impl<'a> Sync for SumSquare<'a>

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impl<'a> Unpin for SumSquare<'a>

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impl<'a> UnsafeUnpin for SumSquare<'a>

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impl<'a> UnwindSafe for SumSquare<'a>

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.