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use alloc::vec::Vec;
use crate::alloc::borrow::ToOwned;
use crate::TensorPrimitive;
use crate::{
backend::Backend, check, check::TensorCheck, BasicOps, Bool, Distribution, Element,
ElementConversion, Float, Int, Shape, Tensor, TensorKind,
};
impl<B, const D: usize, K> Tensor<B, D, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
/// Applies element wise addition operation.
///
/// `y = x2 + x1`
#[allow(clippy::should_implement_trait)]
pub fn add(self, other: Self) -> Self {
check!(TensorCheck::binary_ops_ew("Add", &self, &other));
Self::new(K::add(self.primitive, other.primitive))
}
/// Applies element wise addition operation with a scalar.
///
/// `y = x + s`
pub fn add_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::add_scalar(self.primitive, other))
}
/// Applies element wise subtraction operation.
///
/// `y = x2 - x1`
#[allow(clippy::should_implement_trait)]
pub fn sub(self, other: Self) -> Self {
check!(TensorCheck::binary_ops_ew("Sub", &self, &other));
Self::new(K::sub(self.primitive, other.primitive))
}
/// Applies element wise subtraction operation with a scalar.
///
/// `y = x - s`
pub fn sub_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::sub_scalar(self.primitive, other))
}
/// Applies element wise division operation.
///
/// `y = x2 / x1`
#[allow(clippy::should_implement_trait)]
pub fn div(self, other: Self) -> Self {
check!(TensorCheck::binary_ops_ew("Div", &self, &other));
Self::new(K::div(self.primitive, other.primitive))
}
/// Applies element wise division operation with a scalar.
///
/// `y = x / s`
pub fn div_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::div_scalar(self.primitive, other))
}
/// Applies element wise the remainder operation with a scalar.
///
/// `y = x2 % x1`
#[allow(clippy::should_implement_trait)]
pub fn remainder_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::remainder_scalar(self.primitive, other))
}
/// Applies element wise multiplication operation.
///
/// `y = x2 * x1`
#[allow(clippy::should_implement_trait)]
pub fn mul(self, other: Self) -> Self {
check!(TensorCheck::binary_ops_ew("Mul", &self, &other));
Self::new(K::mul(self.primitive, other.primitive))
}
/// Applies element wise multiplication operation with a scalar.
///
/// `y = x * s`
pub fn mul_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::mul_scalar(self.primitive, other))
}
/// Switch sign of each element in the tensor.
///
/// `y = -x`
#[allow(clippy::should_implement_trait)]
pub fn neg(self) -> Self {
Self::new(K::neg(self.primitive))
}
/// Returns the signs of the elements of the input tensor.
pub fn sign(self) -> Self {
Self::new(K::sign(self.primitive))
}
/// Create a tensor of the given shape where each element is zero.
pub fn zeros<S: Into<Shape<D>>>(shape: S, device: &B::Device) -> Self {
let shape = shape.into();
check!(TensorCheck::creation_ops::<D>("Zeros", &shape.dims));
Self::new(K::zeros(shape, device))
}
/// Create a tensor of the given shape where each element is one.
pub fn ones<S: Into<Shape<D>>>(shape: S, device: &B::Device) -> Self {
let shape = shape.into();
check!(TensorCheck::creation_ops::<D>("Ones", &shape.dims));
Self::new(K::ones(shape, device))
}
/// Create a tensor of the given shape where each element is equal to the provided value.
pub fn full<S: Into<Shape<D>>, E: ElementConversion>(
shape: S,
fill_value: E,
device: &B::Device,
) -> Self {
let shape = shape.into();
check!(TensorCheck::creation_ops::<D>("Full", &shape.dims));
Self::new(K::full(shape, fill_value, device))
}
/// Aggregate all elements in the tensor with the mean operation.
pub fn mean(self) -> Tensor<B, 1, K> {
Tensor::new(K::mean(self.primitive))
}
/// Aggregate all elements in the tensor with the sum operation.
pub fn sum(self) -> Tensor<B, 1, K> {
Tensor::new(K::sum(self.primitive))
}
/// Aggregate all elements along the given *dimension* or *axis*
/// in the tensor with the mean operation.
pub fn mean_dim(self, dim: usize) -> Self {
check!(TensorCheck::aggregate_dim::<D>("Mean", dim));
Self::new(K::mean_dim(self.primitive, dim))
}
/// Aggregate all elements along the given *dimension* or *axis*
/// in the tensor with the sum operation.
pub fn sum_dim(self, dim: usize) -> Self {
check!(TensorCheck::aggregate_dim::<D>("Sum", dim));
Self::new(K::sum_dim(self.primitive, dim))
}
/// Aggregate all elements along the given *dimension* or *axis*
/// in the tensor with the product operation.
pub fn prod(self) -> Tensor<B, 1, K> {
Tensor::new(K::prod(self.primitive))
}
/// Aggregate all elements along the given *dimension* or *axis*
/// in the tensor with the product operation.
pub fn prod_dim(self, dim: usize) -> Self {
check!(TensorCheck::aggregate_dim::<D>("Prod", dim));
Self::new(K::prod_dim(self.primitive, dim))
}
/// Applies element wise equal comparison and returns a boolean tensor.
pub fn equal_elem<E: Element>(self, other: E) -> Tensor<B, D, Bool> {
K::equal_elem::<D>(self.primitive, other.elem())
}
/// Applies element wise non-equality comparison and returns a boolean tensor.
pub fn not_equal_elem<E: Element>(self, other: E) -> Tensor<B, D, Bool> {
K::not_equal_elem::<D>(self.primitive, other.elem())
}
/// Applies element wise greater comparison and returns a boolean tensor.
///
/// # Panics
///
/// If the two tensors don't have the same shape.
pub fn greater(self, other: Self) -> Tensor<B, D, Bool> {
check!(TensorCheck::binary_ops_ew("Greater", &self, &other));
K::greater(self.primitive, other.primitive)
}
/// Applies element wise greater-equal comparison and returns a boolean tensor.
///
/// # Panics
///
/// If the two tensors don't have the same shape.
pub fn greater_equal(self, other: Self) -> Tensor<B, D, Bool> {
check!(TensorCheck::binary_ops_ew("Greater_equal", &self, &other));
K::greater_equal(self.primitive, other.primitive)
}
/// Applies element wise lower comparison and returns a boolean tensor.
///
/// # Panics
///
/// If the two tensors don't have the same shape.
pub fn lower(self, other: Self) -> Tensor<B, D, Bool> {
check!(TensorCheck::binary_ops_ew("Lower", &self, &other));
K::lower(self.primitive, other.primitive)
}
/// Applies element wise lower-equal comparison and returns a boolean tensor.
///
/// # Panics
///
/// If the two tensors don't have the same shape.
pub fn lower_equal(self, other: Self) -> Tensor<B, D, Bool> {
check!(TensorCheck::binary_ops_ew("Lower_equal", &self, &other));
K::lower_equal(self.primitive, other.primitive)
}
/// Applies element wise greater comparison and returns a boolean tensor.
pub fn greater_elem<E: ElementConversion>(self, other: E) -> Tensor<B, D, Bool> {
K::greater_elem(self.primitive, other.elem())
}
/// Applies element wise greater-equal comparison and returns a boolean tensor.
pub fn greater_equal_elem<E: ElementConversion>(self, other: E) -> Tensor<B, D, Bool> {
K::greater_equal_elem(self.primitive, other.elem())
}
/// Applies element wise lower comparison and returns a boolean tensor.
pub fn lower_elem<E: ElementConversion>(self, other: E) -> Tensor<B, D, Bool> {
K::lower_elem(self.primitive, other.elem())
}
/// Applies element wise lower-equal comparison and returns a boolean tensor.
pub fn lower_equal_elem<E: ElementConversion>(self, other: E) -> Tensor<B, D, Bool> {
K::lower_equal_elem(self.primitive, other.elem())
}
/// Update the given tensor with the value tensor where the mask is true.
///
/// This is similar to [mask_fill](Tensor::mask_fill), however the value is a tensor instead of
/// a scalar.
pub fn mask_where(self, mask: Tensor<B, D, Bool>, value: Self) -> Self {
Self::new(K::mask_where(self.primitive, mask, value.primitive))
}
/// Update the given tensor with the value where the mask is true.
///
/// This is similar to [mask_where](Tensor::mask_where), however the value is a scalar instead of
/// a tensor.
pub fn mask_fill<E: ElementConversion>(self, mask: Tensor<B, D, Bool>, value: E) -> Self {
Self::new(K::mask_fill(self.primitive, mask, value.elem()))
}
/// Gather tensor elements corresponding to the given indices from the specified dim.
///
/// Example using a 3D tensor:
///
/// `output[i, j, k] = input[indices[i, j, k], j, k]; // dim = 0`
/// `output[i, j, k] = input[i, indices[i, j, k], k]; // dim = 1`
/// `output[i, j, k] = input[i, j, indices[i, j, k]]; // dim = 2`
///
/// # Notes
///
/// The index tensor should have the same shape as the original tensor except for the dim
/// specified.
pub fn gather(self, dim: usize, indices: Tensor<B, D, Int>) -> Self {
check!(TensorCheck::gather::<D>(
dim,
&self.shape(),
&indices.shape()
));
Self::new(K::gather(dim, self.primitive, indices))
}
/// Assign the gathered elements corresponding to the given indices along the specified dimension
/// from the value tensor to the original tensor using sum reduction.
///
/// Example using a 3D tensor:
///
/// `input[indices[i, j, k], j, k] += values[i, j, k]; // dim = 0`
/// `input[i, indices[i, j, k], k] += values[i, j, k]; // dim = 1`
/// `input[i, j, indices[i, j, k]] += values[i, j, k]; // dim = 2`
///
/// # Notes
///
/// The index tensor should have the same shape as the original tensor except for the specified
/// dimension. The value and index tensors should have the same shape.
///
/// Other references to the input tensor will not be modified by this operation.
pub fn scatter(self, dim: usize, indices: Tensor<B, D, Int>, values: Self) -> Self {
check!(TensorCheck::scatter::<D>(
dim,
&self.shape(),
&indices.shape(),
&values.shape()
));
Self::new(K::scatter(dim, self.primitive, indices, values.primitive))
}
/// Select the tensor elements along the given dimension corresponding to the given indices.
///
/// Example using a 3D tensor:
///
/// `output[i, j, k] = input[indices[i], j, k]; // dim = 0`
/// `output[i, j, k] = input[i, indices[j], k]; // dim = 1`
/// `output[i, j, k] = input[i, j, indices[k]]; // dim = 2`
pub fn select(self, dim: usize, indices: Tensor<B, 1, Int>) -> Self {
check!(TensorCheck::select::<D>(dim));
Self::new(K::select(self.primitive, dim, indices))
}
/// Assign the selected elements along the given dimension corresponding to the given indices
/// from the value tensor to the original tensor using sum reduction.
///
/// Example using a 3D tensor:
///
/// `input[indices[i], j, k] += values[i, j, k]; // dim = 0`
/// `input[i, indices[j], k] += values[i, j, k]; // dim = 1`
/// `input[i, j, indices[k]] += values[i, j, k]; // dim = 2`
pub fn select_assign(
self,
dim: usize,
indices: Tensor<B, 1, Int>,
values: Tensor<B, D, K>,
) -> Self {
check!(TensorCheck::select_assign::<D>(dim));
Self::new(K::select_assign(
self.primitive,
dim,
indices,
values.primitive,
))
}
/// Applies the argmax function along the given dimension and returns an integer tensor.
///
/// # Example
///
/// ```rust
/// use burn_tensor::backend::Backend;
/// use burn_tensor::{Tensor, Shape};
///
/// fn example<B: Backend>() {
/// let device = B::Device::default();
/// let tensor = Tensor::<B, 3>::ones(Shape::new([2, 3, 3]), &device);
/// let tensor = tensor.argmax(1);
/// println!("{:?}", tensor.shape());
/// // Shape { dims: [2, 1, 3] }
/// }
/// ```
pub fn argmax(self, dim: usize) -> Tensor<B, D, Int> {
Tensor::new(K::argmax(self.primitive, dim))
}
/// Find the maximum value.
pub fn max(self) -> Tensor<B, 1, K> {
Tensor::new(K::max(self.primitive))
}
/// Find the maximum value along the given dimension.
pub fn max_dim(self, dim: usize) -> Tensor<B, D, K> {
check!(TensorCheck::aggregate_dim::<D>("Max", dim));
Tensor::new(K::max_dim(self.primitive, dim))
}
/// Find the maximum value along the given dimension.
///
/// Also returns the indices.
pub fn max_dim_with_indices(self, dim: usize) -> (Tensor<B, D, K>, Tensor<B, D, Int>) {
check!(TensorCheck::aggregate_dim::<D>("Max", dim));
let (tensor, index) = K::max_dim_with_indices(self.primitive, dim);
let tensor = Tensor::new(tensor);
let index = Tensor::new(index);
(tensor, index)
}
/// Finds the maximum pair wise values with another Tensor
///
/// # Arguments
///
/// * `other` - Other tensor to find maximum elements with
///
/// # Returns
///
/// A tensor with the same shape as the input tensors containing the maximum value found
/// in the input tensors.
pub fn max_pair(self, other: Self) -> Self {
let mask = self.clone().lower(other.clone());
self.mask_where(mask, other)
}
/// Applies the argmin function along the given dimension and returns an integer tensor.
///
/// # Example
///
/// ```rust
/// use burn_tensor::backend::Backend;
/// use burn_tensor::{Tensor, Shape};
///
/// fn example<B: Backend>() {
/// let device = Default::default();
/// let tensor = Tensor::<B, 3>::ones(Shape::new([2, 3, 3]), &device);
/// let tensor = tensor.argmin(1);
/// println!("{:?}", tensor.shape());
/// // Shape { dims: [2, 1, 3] }
/// }
/// ```
pub fn argmin(self, dim: usize) -> Tensor<B, D, Int> {
Tensor::new(K::argmin(self.primitive, dim))
}
/// Find the minimum value.
pub fn min(self) -> Tensor<B, 1, K> {
Tensor::new(K::min(self.primitive))
}
/// Find the minimum value along the given dimension.
pub fn min_dim(self, dim: usize) -> Tensor<B, D, K> {
check!(TensorCheck::aggregate_dim::<D>("Min", dim));
Tensor::new(K::min_dim(self.primitive, dim))
}
/// Find the minimum value along the given dimension.
///
/// Also returns the indices.
pub fn min_dim_with_indices(self, dim: usize) -> (Tensor<B, D, K>, Tensor<B, D, Int>) {
check!(TensorCheck::aggregate_dim::<D>("Min", dim));
let (tensor, index) = K::min_dim_with_indices(self.primitive, dim);
let tensor = Tensor::new(tensor);
let index = Tensor::new(index);
(tensor, index)
}
/// Finds the minimum pair wise values with another Tensor
///
/// # Arguments
///
/// * `other` - Other tensor to find minimum elements with
///
/// # Returns
///
/// A tensor with the same shape as the input tensors containing the minimum value found
/// between each element of the two source tensors.
pub fn min_pair(self, other: Self) -> Self {
let mask = other.clone().lower(self.clone());
self.mask_where(mask, other)
}
/// Clamp the tensor between the given min and max values.
///
/// # Arguments
///
/// * `min` - The minimum value.
/// * `max` - The maximum value.
///
/// # Returns
///
/// A new tensor with the values clamped between the given min and max values.
pub fn clamp<E: ElementConversion>(self, min: E, max: E) -> Self {
Self::new(K::clamp(self.primitive, min.elem(), max.elem()))
}
/// Clamps a tensor under a minimum value.
///
/// # Arguments
///
/// * `tensor` - The tensor to clamp.
/// * `min` - The minimum value.
///
/// # Returns
///
/// A new tensor with the values clamped under the given min value.
pub fn clamp_min<E: ElementConversion>(self, min: E) -> Self {
Self::new(K::clamp_min(self.primitive, min.elem()))
}
/// Clamps a tensor over a maximum value.
///
/// # Arguments
///
/// * `tensor` - The tensor to clamp.
/// * `max` - The maximum value.
///
/// # Returns
///
/// A new tensor with the values clamped over the given max value.
///
pub fn clamp_max<E: ElementConversion>(self, max: E) -> Self {
Self::new(K::clamp_max(self.primitive, max.elem()))
}
/// Apply element wise absolute value operation
pub fn abs(self) -> Self {
Self::new(K::abs(self.primitive))
}
/// Returns the upper triangular part of a matrix (2-D tensor) or batch of matrices input,
/// the other elements of the result tensor out are set to 0.
///
/// # Example
/// ```rust
/// use burn_tensor::backend::Backend;
/// use burn_tensor::{Int, Tensor};
///
/// fn example<B: Backend>() {
/// let device = Default::default();
/// let tensor = Tensor::<B, 2, Int>::from_ints(
/// [
/// [1, 2, 3],
/// [4, 5, 6],
/// [7, 8, 9]
/// ],
/// &device
/// );
/// let tensor = tensor.triu(1);
/// println!("{}", tensor);
/// // Tensor { data: [
/// // [0, 2, 3],
/// // [0, 0, 6],
/// // [0, 0, 0]
/// // ], ... }
/// }
/// ```
pub fn triu(self, diagonal: i64) -> Self {
check!(TensorCheck::tri::<{ D }>());
// last two dimensions
let shape = &self.shape().dims[D - 2..].to_owned();
let mask = Tensor::<B, 2, Bool>::triu_mask(shape, diagonal, &self.device()).unsqueeze();
self.mask_fill(mask, 0)
}
/// Returns the lower triangular part of a matrix (2-D tensor) or batch of matrices input,
/// the other elements of the result tensor out are set to 0.
///
/// # Example
/// ```rust
/// use burn_tensor::backend::Backend;
/// use burn_tensor::{Int, Tensor};
///
/// fn example<B: Backend>() {
/// let device = Default::default();
/// let tensor = Tensor::<B, 2, Int>::from_ints(
/// [
/// [1, 2, 3],
/// [4, 5, 6],
/// [7, 8, 9]
/// ],
/// &device
/// );
///
/// let tensor = tensor.tril(-1);
/// println!("{}", tensor);
/// // Tensor { data: [
/// // [0, 0, 0],
/// // [4, 0, 0],
/// // [7, 8, 0]
/// // ], ... }
/// }
/// ```
pub fn tril(self, diagonal: i64) -> Self {
check!(TensorCheck::tri::<{ D }>());
// last two dimensions
let shape = &self.shape().dims[D - 2..].to_owned();
let mask = Tensor::<B, 2, Bool>::tril_mask(shape, diagonal, &self.device()).unsqueeze();
self.mask_fill(mask, 0)
}
/// Applies element wise power operation with a float Tensor
pub fn powf(self, other: Self) -> Self {
Self::new(K::powf(self.primitive, other.primitive))
}
/// Applies element wise power operation with a float scalar
pub fn powf_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::powf_scalar(self.primitive, other))
}
/// Applies element wise power operation with a integer Tensor
pub fn powi(self, other: Self) -> Self {
Self::new(K::powi(self.primitive, other.primitive))
}
/// Applies element wise power operation with a integer scalar
pub fn powi_scalar<E: ElementConversion>(self, other: E) -> Self {
Self::new(K::powi_scalar(self.primitive, other))
}
/// Checks element wise if the tensor is close to another tensor.
///
/// The tolerance is defined by the following equation:
///
/// ```text
/// abs(a - b) <= (atol + rtol * abs(b))
///
/// where `a` is the first tensor, `b` is the second tensor, `rtol` is the relative tolerance,
/// and `atol` is the absolute tolerance.
/// ```
///
/// # Arguments
///
/// * `other` - The tensor to compare with.
/// * `rtol` - Optional relative tolerance. Default is 1e-5.
/// * `atol` - Optional absolute tolerance. Default is 1e-8.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors.
pub fn is_close(self, other: Self, rtol: Option<f64>, atol: Option<f64>) -> Tensor<B, D, Bool> {
let rtol = rtol.unwrap_or(1e-5);
let atol = atol.unwrap_or(1e-8);
K::lower_equal(
K::abs(K::sub(self.primitive, other.primitive.clone())),
K::add_scalar(K::mul_scalar(K::abs(other.primitive), rtol), atol),
)
}
/// Checks if all elements are close to another tensor.
///
/// The tolerance is defined by the following equation:
///
/// ```text
///
/// abs(a - b) <= (atol + rtol * abs(b))
///
/// where `a` is the first tensor, `b` is the second tensor, `rtol` is the relative tolerance,
/// and `atol` is the absolute tolerance.
///
/// ```
///
/// # Arguments
///
/// * `other` - The tensor to compare with.
/// * `rtol` - Optional relative tolerance. Default is 1e-5.
/// * `atol` - Optional absolute tolerance. Default is 1e-8.
///
/// # Returns
///
/// A boolean scalar.
///
/// # Remarks
pub fn all_close(self, other: Self, rtol: Option<f64>, atol: Option<f64>) -> bool {
self.is_close(other, rtol, atol).all().into_scalar()
}
/// Converts the tensor to a boolean tensor by checking if the elements are non-zero.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensor.
pub fn bool(self) -> Tensor<B, D, Bool> {
K::not_equal_elem::<D>(self.primitive, 0.elem())
}
/// Create a random tensor of the given shape on the given device where each element is
/// sampled from the given distribution.
pub fn random<S: Into<Shape<D>>>(
shape: S,
distribution: Distribution,
device: &B::Device,
) -> Self {
Self::new(K::random(shape.into(), distribution, device))
}
/// Sort the elements by value in ascending order along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
pub fn sort(self, dim: usize) -> Tensor<B, D, K> {
check!(TensorCheck::sort_dim::<D>("Sort", dim));
Tensor::new(K::sort(self.primitive, dim, /*descending*/ false))
}
/// Sort the elements by value in descending order along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
pub fn sort_descending(self, dim: usize) -> Tensor<B, D, K> {
check!(TensorCheck::sort_dim::<D>("Sort", dim));
Tensor::new(K::sort(self.primitive, dim, /*descending*/ true))
}
/// Sort the elements by value in ascending order along a given dimension.
/// Also returns the indices.
///
/// This sort is unstable (i.e., may reorder equal elements).
pub fn sort_with_indices(self, dim: usize) -> (Tensor<B, D, K>, Tensor<B, D, Int>) {
check!(TensorCheck::sort_dim::<D>("Sort_with_indices", dim));
let (values, indices) =
K::sort_with_indices(self.primitive, dim, /*descending*/ false);
(Tensor::new(values), Tensor::new(indices))
}
/// Sort the elements by value in descending order along a given dimension.
/// Also returns the indices.
///
/// This sort is unstable (i.e., may reorder equal elements).
pub fn sort_descending_with_indices(self, dim: usize) -> (Tensor<B, D, K>, Tensor<B, D, Int>) {
check!(TensorCheck::sort_dim::<D>("Sort_with_indices", dim));
let (values, indices) = K::sort_with_indices(self.primitive, dim, /*descending*/ true);
(Tensor::new(values), Tensor::new(indices))
}
/// Returns the indices that sort the elements by value in ascending order along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
pub fn argsort(self, dim: usize) -> Tensor<B, D, Int> {
check!(TensorCheck::sort_dim::<D>("Argsort", dim));
Tensor::new(K::argsort(self.primitive, dim, /*descending*/ false))
}
/// Returns the indices that sort the elements by value in descending order along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
pub fn argsort_descending(self, dim: usize) -> Tensor<B, D, Int> {
check!(TensorCheck::sort_dim::<D>("Argsort", dim));
Tensor::new(K::argsort(self.primitive, dim, /*descending*/ true))
}
/// Returns the `k` largest elements of the given input tensor along a given dimension.
pub fn topk(self, k: usize, dim: usize) -> Tensor<B, D, K> {
let k_indices = Tensor::arange(0..k as i64, &self.device());
self.sort_descending(dim).select(dim, k_indices)
}
/// Returns the `k` largest elements of the given input tensor along a given dimension.
/// Also returns the indices.
pub fn topk_with_indices(self, k: usize, dim: usize) -> (Tensor<B, D, K>, Tensor<B, D, Int>) {
let k_indices = Tensor::arange(0..k as i64, &self.device());
let (values, indices) = self.sort_descending_with_indices(dim);
(
values.select(dim, k_indices.clone()),
indices.select(dim, k_indices),
)
}
/// Pad the tensor of rank two or higher with the given value on the last two dimensions.
///
/// # Arguments
///
/// * `padding` - A tuple of four integers representing the padding on the left, right, top, and bottom.
/// * `value` - The value to pad the tensor with.
///
/// # Returns
///
/// A new tensor with the given padding.
pub fn pad(self, padding: (usize, usize, usize, usize), value: K::Elem) -> Tensor<B, D, K> {
let (left, right, top, bottom) = padding;
let mut padded_dims: [usize; D] = self.dims();
// Update the last two dimensions with padding
padded_dims[D - 2] += top + bottom;
padded_dims[D - 1] += left + right;
// Create the ranges for the padded tensor
let ranges: [core::ops::Range<usize>; D] = padded_dims
.iter()
.enumerate()
.map(|(i, &dim)| {
if i == D - 2 {
top..dim - bottom
} else if i == D - 1 {
left..dim - right
} else {
0..dim
}
})
.collect::<Vec<core::ops::Range<usize>>>()
.try_into()
.unwrap();
// Create the padded tensor
let padded_tensor = Tensor::full(padded_dims, value, &self.device());
// Assign the original tensor data to the appropriate slice of the padded tensor
padded_tensor.slice_assign(ranges, self)
}
/// Returns a new tensor with boolean elements indicating whether each element of the input is NaN.
///
/// # Returns
///
/// A boolean tensor where `true` indicates NaN and `false` indicates a non-NaN value.
pub fn is_nan(&self) -> Tensor<B, D, Bool> {
// Check if the input tensor is NaN by comparing it to itself
// NaN is the only value that is not equal to itself
K::not_equal(self.primitive.clone(), self.primitive.clone())
}
/// Checks if the tensor contains any NaN values.
///
/// # Returns
///
/// A boolean tensor with a single element indicating whether the tensor contains any NaN values.
pub fn contains_nan(&self) -> Tensor<B, 1, Bool> {
// Summing the tensor will result in NaN if the tensor contains any NaN values
// This is faster than checking each element individually
// because it rolls up the NaN values into a single value
let sum = K::sum(self.primitive.clone());
// Check if the sum is NaN by comparing it to itself
K::not_equal(sum.clone(), sum)
}
}
impl<B, K> Tensor<B, 2, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
/// Creates a new 2D tensor with ones on the diagonal and zeros elsewhere.
///
/// # Arguments
///
/// * `size` - The size of the square matrix.
pub fn eye(size: usize, device: &B::Device) -> Self {
let indices = Tensor::<B, 1, Int>::arange(0..size as i64, device).unsqueeze();
let ones = K::ones([1, size].into(), device);
let zeros = K::zeros([size, size].into(), device);
Self::new(K::scatter(0, zeros, indices, ones))
}
}
/// Trait that list all operations that can be applied on all numerical tensors.
///
/// # Warnings
///
/// This is an internal trait, use the public API provided by [tensor struct](Tensor).
pub trait Numeric<B: Backend>: BasicOps<B>
where
Self::Elem: Element,
{
/// Adds two tensors together.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// The sum of the two tensors.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For adding tensors, users should prefer the [Tensor::add](Tensor::add) function,
/// which is more high-level and designed for public use.
fn add<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Primitive<D>) -> Self::Primitive<D>;
/// Adds a scalar to a tensor element-wise.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// The sum of the tensor and the scalar.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For adding a scalar to a tensor, users should prefer the [Tensor::add_scalar](Tensor::add_scalar) function,
/// which is more high-level and designed for public use.
fn add_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Subtracts two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// The difference of the two tensors.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For subtracting tensors, users should prefer the [Tensor::sub](Tensor::sub) function,
/// which is more high-level and designed for public use.
fn sub<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Primitive<D>) -> Self::Primitive<D>;
/// Subtracts a scalar from a tensor element-wise.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// The difference of the tensor and the scalar.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For subtracting a scalar from a tensor, users should prefer the [Tensor::sub_scalar](Tensor::sub_scalar) function,
/// which is more high-level and designed for public use.
fn sub_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Divides two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// The quotient of the two tensors.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For dividing tensors, users should prefer the [Tensor::div](Tensor::div) function,
/// which is more high-level and designed for public use.
fn div<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Primitive<D>) -> Self::Primitive<D>;
/// Divides a tensor by a scalar element-wise.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// The quotient of the tensor and the scalar.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For dividing a tensor by a scalar, users should prefer the [Tensor::div_scalar](Tensor::div_scalar) function,
/// which is more high-level and designed for public use.
fn div_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Computes the modulus element-wise. The result has the same sign as the divisor rhs and its absolute value is
/// less than that of the divisor.
///
/// # Arguments
///
/// * `lhs` - The dividend.
/// * `rhs` - The divisor.
///
/// # Returns
///
/// The modulus of the input tensor with the divisor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For performing the modulus operation, users should prefer the [Tensor::remainder_scalar](Tensor::remainder_scalar) function,
/// which is more high-level and designed for public use.
fn remainder_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Multiplies two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// The product of the two tensors.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For multiplying tensors, users should prefer the [Tensor::mul](Tensor::mul) function,
/// which is more high-level and designed for public use.
fn mul<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Primitive<D>) -> Self::Primitive<D>;
/// Multiplies a tensor by a scalar element-wise.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// The product of the tensor and the scalar.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For multiplying a tensor by a scalar, users should prefer the [Tensor::mul_scalar](Tensor::mul_scalar) function,
/// which is more high-level and designed for public use.
fn mul_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Negates a tensor.
///
/// # Arguments
///
/// * `tensor` - The tensor to negate.
///
/// # Returns
///
/// The negated tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For negating a tensor, users should prefer the [Tensor::neg](Tensor::neg) function,
/// which is more high-level and designed for public use.
fn neg<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D>;
/// Returns the signs of the elements of a tensor.
///
/// # Arguments
///
/// * `tensor` - The tensor.
///
/// # Returns
///
/// The signs of the elements of the tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the signs of the elements of a tensor, users should prefer the [Tensor::sign](Tensor::sign) function,
/// which is more high-level and designed for public use.
fn sign<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D>;
/// Creates a tensor filled with zeros.
///
/// # Arguments
///
/// * `shape` - The shape of the tensor.
/// * `device` - The device on which the tensor will be allocated.
///
/// # Returns
///
/// The tensor filled with zeros.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For creating a tensor filled with zeros, users should prefer the [Tensor::zeros](Tensor::zeros) function,
/// which is more high-level and designed for public use.
fn zeros<const D: usize>(shape: Shape<D>, device: &B::Device) -> Self::Primitive<D>;
/// Creates a tensor filled with ones.
///
/// # Arguments
///
/// * `shape` - The shape of the tensor.
/// * `device` - The device on which the tensor will be allocated.
///
/// # Returns
///
/// The tensor filled with ones.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For creating a tensor filled with ones, users should prefer the [Tensor::ones](Tensor::ones) function,
/// which is more high-level and designed for public use.
fn ones<const D: usize>(shape: Shape<D>, device: &B::Device) -> Self::Primitive<D>;
/// Creates a tensor filled with elements equal to the given value.
///
/// # Arguments
///
/// * `shape` - The shape of the tensor.
/// * `fill_value` - The value with which to fill the tensor
/// * `device` - The device on which the tensor will be allocated.
///
/// # Returns
///
/// The tensor filled with elements equal to the given value
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For creating a tensor filled with a specific value, users should prefer the [Tensor::full](Tensor::full) function,
/// which is more high-level and designed for public use.
fn full<const D: usize, E: ElementConversion>(
shape: Shape<D>,
fill_value: E,
device: &B::Device,
) -> Self::Primitive<D>;
/// Sums all the elements of the tensor.
///
/// # Arguments
///
/// * `tensor` - The tensor to sum.
///
/// # Returns
///
/// The sum of all the elements of the tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For summing all the elements of a tensor, users should prefer the [Tensor::sum](Tensor::sum) function,
/// which is more high-level and designed for public use.
fn sum<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1>;
/// Sums all the elements of the tensor along a dimension.
///
/// # Arguments
///
/// * `tensor` - The tensor to sum.
/// * `dim` - The dimension along which to sum.
///
/// # Returns
///
/// The sum of all the elements of the tensor along the specified dimension.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For summing all the elements of a tensor along a dimension, users should prefer the [Tensor::sum_dim](Tensor::sum_dim) function,
/// which is more high-level and designed for public use.
fn sum_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D>;
/// Computes the product of all the elements of the tensor.
///
/// # Arguments
///
/// * `tensor` - The tensor to compute the product of.
///
/// # Returns
///
/// The product of all the elements of the tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For computing the product of all the elements of a tensor, users should prefer the
/// [Tensor::prod](Tensor::prod) function,
/// which is more high-level and designed for public use.
fn prod<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1>;
/// Computes the product of all the elements of the tensor along a dimension.
///
/// # Arguments
///
/// * `tensor` - The tensor to compute the product of.
/// * `dim` - The dimension along which to compute the product.
///
/// # Returns
///
/// The product of all the elements of the tensor along the specified dimension.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For computing the product of all the elements of a tensor along a dimension, users should
/// prefer the [Tensor::prod_dim](Tensor::prod_dim) function,
/// which is more high-level and designed for public use.
///
///
fn prod_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D>;
/// Computes the mean of all the elements of the tensor.
///
/// # Arguments
///
/// * `tensor` - The tensor to compute the mean of.
///
/// # Returns
///
/// The mean of all the elements of the tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For computing the mean of all the elements of a tensor, users should prefer the [Tensor::mean](Tensor::mean) function,
/// which is more high-level and designed for public use.
fn mean<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1>;
/// Computes the mean of all the elements of the tensor along a dimension.
///
/// # Arguments
///
/// * `tensor` - The tensor to compute the mean of.
/// * `dim` - The dimension along which to compute the mean.
///
/// # Returns
///
/// The mean of all the elements of the tensor along the specified dimension.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For computing the mean of all the elements of a tensor along a dimension, users should prefer
/// the [Tensor::mean_dim](Tensor::mean_dim) function, which is more high-level and designed for public use.
fn mean_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D>;
/// Element-wise equality between two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors, where each element is true if the
/// corresponding elements of the input tensors are equal, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise equality between two tensors, users should prefer the [Tensor::equal_elem](Tensor::equal_elem)
/// function, which is more high-level and designed for public use.
fn equal_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem) -> Tensor<B, D, Bool>;
/// Element-wise non-equality between two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors, where each element is true if the
/// corresponding elements of the input tensors are equal, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise non-equality between two tensors, users should prefer the [Tensor::not_equal_elem](Tensor::not_equal_elem)
/// function, which is more high-level and designed for public use.
fn not_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool>;
/// Element-wise greater than comparison between two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors, where each element is true if the
/// corresponding element of the left hand side tensor is greater than the corresponding element
/// of the right hand side tensor, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise greater than comparison between two tensors, users should prefer the [Tensor::greater](Tensor::greater) function,
/// which is more high-level and designed for public use.
fn greater<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool>;
/// Element-wise greater than comparison between a tensor and a scalar.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensor, where each element is true if the
/// corresponding element of the left hand side tensor is greater than the right hand side
/// scalar, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise greater than comparison between a tensor and a scalar, users should prefer
/// the [Tensor::greater_elem](Tensor::greater_elem) function, which is more high-level and designed for public use.
fn greater_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem)
-> Tensor<B, D, Bool>;
/// Element-wise greater than or equal comparison between two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors, where each element is true if the
/// corresponding element of the left hand side tensor is greater than or equal to the
/// corresponding element of the right hand side tensor, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise greater than or equal comparison between two tensors, users should prefer
/// the [Tensor::greater_equal](Tensor::greater_equal) function, which is more high-level and designed for public use.
fn greater_equal<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool>;
/// Element-wise greater than or equal comparison between a tensor and a scalar.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensor, where each element is true if the
/// corresponding element of the left hand side tensor is greater than or equal to the right
/// hand side scalar, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise greater than or equal comparison between a tensor and a scalar, users should prefer
/// the [Tensor::greater_equal_elem](Tensor::greater_equal_elem) function, which is more high-level and designed for public use.
fn greater_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool>;
/// Element-wise less than comparison between two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors, where each element is true if the
/// corresponding element of the left hand side tensor is less than the corresponding element of
/// the right hand side tensor, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise less than comparison between two tensors, users should prefer the [Tensor::lower](Tensor::lower) function,
/// which is more high-level and designed for public use.
fn lower<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool>;
/// Element-wise less than comparison between a tensor and a scalar.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensor, where each element is true if the
/// corresponding element of the left hand side tensor is less than the right hand side scalar,
/// and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise less than comparison between a tensor and a scalar, users should prefer
/// the [Tensor::lower_elem](Tensor::lower_elem) function, which is more high-level and designed for public use.
fn lower_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem) -> Tensor<B, D, Bool>;
/// Element-wise less than or equal comparison between two tensors.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side tensor.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensors, where each element is true if the
/// corresponding element of the left hand side tensor is less than or equal to the corresponding
/// element of the right hand side tensor, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise less than or equal comparison between two tensors, users should prefer
/// the [Tensor::lower_equal](Tensor::lower_equal) function, which is more high-level and designed for public use.
fn lower_equal<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool>;
/// Element-wise less than or equal comparison between a tensor and a scalar.
///
/// # Arguments
///
/// * `lhs` - The left hand side tensor.
/// * `rhs` - The right hand side scalar.
///
/// # Returns
///
/// A boolean tensor with the same shape as the input tensor, where each element is true if the
/// corresponding element of the left hand side tensor is less than or equal to the right hand
/// side scalar, and false otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For element-wise less than or equal comparison between a tensor and a scalar, users should prefer
/// the [Tensor::lower_equal_elem](Tensor::lower_equal_elem) function, which is more high-level and designed for public use.
fn lower_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool>;
/// Selects elements from a tensor based on a boolean mask.
///
/// # Arguments
///
/// * `tensor` - The tensor to select elements from if the corresponding element of the mask is true.
/// * `mask` - The boolean mask to use for selecting elements.
/// * `source` - The tensor to select elements from when the corresponding element of the mask is false.
///
/// # Returns
///
/// A tensor with the same shape as the input tensors, where each element is taken from the
/// corresponding element of the left hand side tensor if the corresponding element of the mask
/// is true, and from the corresponding element of the right hand side tensor otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For selecting elements from a tensor based on a boolean mask, users should prefer the
/// [Tensor::mask_where](Tensor::mask_where) function, which is more high-level and designed for public use.
fn mask_where<const D: usize>(
tensor: Self::Primitive<D>,
mask: Tensor<B, D, Bool>,
source: Self::Primitive<D>,
) -> Self::Primitive<D>;
/// Fills elements of a tensor based on a boolean mask.
///
/// # Arguments
///
/// * `tensor` - The tensor where will be overwritten with the value
/// when the corresponding element of the mask is true.
/// * `mask` - The boolean mask to use for filling elements.
/// * `value` - The value to fill elements with when the corresponding element of the mask is true.
///
/// # Returns
///
/// A tensor with the same shape as the input tensors, where each element is taken from the
/// corresponding element unmodified if the corresponding element of the mask is false, and
/// filled with the value otherwise.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For filling elements of a tensor based on a boolean mask, users should prefer the
/// [Tensor::mask_fill](Tensor::mask_fill) function, which is more high-level and designed for public use.
fn mask_fill<const D: usize>(
tensor: Self::Primitive<D>,
mask: Tensor<B, D, Bool>,
value: Self::Elem,
) -> Self::Primitive<D>;
/// Gathers elements from a tensor along an axis.
///
/// # Arguments
///
/// * `dim` - The axis along which to gather elements.
/// * `tensor` - The tensor to gather elements from.
/// * `indices` - The indices of the elements to gather.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is taken from the
/// corresponding element of the input tensor at the corresponding index along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For gathering elements from a tensor along an axis, users should prefer the
/// [Tensor::gather](Tensor::gather) function, which is more high-level and designed for public use.
fn gather<const D: usize>(
dim: usize,
tensor: Self::Primitive<D>,
indices: Tensor<B, D, Int>,
) -> Self::Primitive<D>;
/// Scatters elements into a tensor along an axis.
///
/// # Arguments
///
/// * `dim` - The axis along which to scatter elements.
/// * `tensor` - The tensor to scatter elements into.
/// * `indices` - The indices of the elements to scatter.
/// * `values` - The values to scatter into the tensor.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is taken from the
/// corresponding element of the input tensor at the corresponding index along the specified axis,
/// except for the elements at the specified indices, which are taken from the corresponding
/// element of the values tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For scattering elements into a tensor along an axis, users should prefer the [Tensor::scatter](Tensor::scatter) function,
/// which is more high-level and designed for public use.
fn scatter<const D: usize>(
dim: usize,
tensor: Self::Primitive<D>,
indices: Tensor<B, D, Int>,
values: Self::Primitive<D>,
) -> Self::Primitive<D>;
/// Select tensor elements along the given dimension corresponding for the given indices.
///
/// # Arguments
///
/// * `tensor` - The tensor to select elements from.
/// * `dim` - The axis along which to select elements.
/// * `indices` - The indices of the elements to select.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is taken from the
/// corresponding element of the input tensor at the corresponding index along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For selecting elements from a tensor along an axis, users should prefer the
/// [Tensor::select](Tensor::select) function, which is more high-level and designed for public use.
fn select<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
indices: Tensor<B, 1, Int>,
) -> Self::Primitive<D>;
/// Assign the selected elements along the given dimension corresponding to the given indices
/// from the value tensor.
///
/// # Arguments
///
/// * `tensor` - The tensor to assign elements to.
/// * `dim` - The axis along which to assign elements.
/// * `indices` - The indices of the elements to assign.
/// * `values` - The values to assign to the tensor.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is taken from the
/// corresponding element of the input tensor at the corresponding index along the specified axis,
/// except for the elements at the specified indices, which are taken from the corresponding
/// element of the values tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For assigning elements to a tensor along an axis, users should prefer the
/// [Tensor::select_assign](Tensor::select_assign) function, which is more high-level and designed for public use.
fn select_assign<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
indices: Tensor<B, 1, Int>,
values: Self::Primitive<D>,
) -> Self::Primitive<D>;
/// Gets the indices of the maximum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `dim` - The axis along which to get the indices of the maximum elements.
/// * `tensor` - The tensor to get the indices of the maximum elements from.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is the index of the
/// maximum element of the input tensor at the corresponding index along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the indices of the maximum elements of a tensor along an axis, users should prefer the
/// [Tensor::argmax](Tensor::argmax) function, which is more high-level and designed for public use.
fn argmax<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> B::IntTensorPrimitive<D>;
/// Gets the indices of the minimum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `dim` - The axis along which to get the indices of the minimum elements.
/// * `tensor` - The tensor to get the indices of the minimum elements from.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is the index of the
/// minimum element of the input tensor at the corresponding index along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the indices of the minimum elements of a tensor along an axis, users should prefer the
/// [Tensor::argmin](Tensor::argmin) function, which is more high-level and designed for public use.
fn argmin<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> B::IntTensorPrimitive<D>;
/// Gets the maximum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `dim` - The axis along which to get the maximum elements.
///
/// # Returns
///
/// A single-element tensor containing the maximum element of the input tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the maximum elements of a tensor along an axis, users should prefer the
/// [Tensor::max](Tensor::max) function, which is more high-level and designed for public use.
fn max<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1>;
/// Gets the maximum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `tensor` - The tensor to get the maximum elements from.
/// * `dim` - The axis along which to get the maximum elements.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is the maximum element
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the maximum elements of a tensor along an axis, users should prefer the
/// [Tensor::max_dim](Tensor::max_dim) function, which is more high-level and designed for public use.
fn max_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D>;
/// Gets the maximum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `tensor` - The tensor to get the maximum elements from.
/// * `dim` - The axis along which to get the maximum elements.
///
/// # Returns
///
/// A tuple containing the maximum element of the input tensor, and a tensor with the same shape
/// as the input tensor, where each element is the index of the maximum element of the input tensor
/// at the corresponding index along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the maximum elements of a tensor along an axis, users should prefer the
/// [Tensor::max_dim_with_indices](Tensor::max_dim_with_indices) function, which is more high-level and designed for public use.
fn max_dim_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> (Self::Primitive<D>, B::IntTensorPrimitive<D>);
/// Gets the minimum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `tensor` - The tensor to get the minimum elements from.
///
/// # Returns
///
/// A single-element tensor containing the minimum element of the input tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the minimum elements of a tensor along an axis, users should prefer the
/// [Tensor::min](Tensor::min) function, which is more high-level and designed for public use.
fn min<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1>;
/// Gets the minimum elements of a tensor along an axis.
///
/// # Arguments
///
/// * `tensor` - The tensor to get the minimum elements from.
/// * `dim` - The axis along which to get the minimum elements.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where each element is the minimum element
/// of the input tensor at the corresponding index along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the minimum elements of a tensor along an axis, users should prefer the
/// [Tensor::min_dim](Tensor::min_dim) function, which is more high-level and designed for public use.
fn min_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D>;
/// Gets the minimum elements and indices of a tensor along an axis.
///
/// # Arguments
///
/// * `tensor` - The tensor to get the minimum elements from.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor and corresponding indices, where
/// each element is the minimum element of the input tensor at the corresponding index
/// along the specified axis.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For getting the minimum elements of a tensor along an axis, users should prefer the
/// [Tensor::min_dim_with_indices](Tensor::min_dim_with_indices) function, which is more high-level and designed for public use.
fn min_dim_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> (Self::Primitive<D>, B::IntTensorPrimitive<D>);
/// Clamp the tensor between the given min and max values.
///
/// # Arguments
///
/// * `min` - The minimum value.
/// * `max` - The maximum value.
///
/// # Returns
///
/// A new tensor with the values clamped between the given min and max values.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users.
///
/// For clamping a tensor between the given min and max values, users should prefer the
/// [Tensor::clamp](Tensor::clamp) function, which is more high-level and designed for public use.
fn clamp<const D: usize>(
tensor: Self::Primitive<D>,
min: Self::Elem,
max: Self::Elem,
) -> Self::Primitive<D>;
/// Clamps a tensor under a minimum value.
///
/// # Arguments
///
/// * `tensor` - The tensor to clamp.
/// * `min` - The minimum value.
///
/// # Returns
///
/// A new tensor with the values clamped under the given min value.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users.
///
/// For clamping a tensor under a minimum value, users should prefer the
/// [Tensor::clamp_min](Tensor::clamp_min) function, which is more high-level and designed for public use.
fn clamp_min<const D: usize>(tensor: Self::Primitive<D>, min: Self::Elem)
-> Self::Primitive<D>;
/// Clamps a tensor over a maximum value.
///
/// # Arguments
///
/// * `tensor` - The tensor to clamp.
/// * `max` - The maximum value.
///
/// # Returns
///
/// A new tensor with the values clamped over the given max value.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users.
///
/// For clamping a tensor over a maximum value, users should prefer the
/// [Tensor::clamp_max](Tensor::clamp_max) function, which is more high-level and designed for public use.
fn clamp_max<const D: usize>(tensor: Self::Primitive<D>, max: Self::Elem)
-> Self::Primitive<D>;
/// Calculate absolute value on all elements of a tensor
///
/// # Arguments
///
/// * `tensor` - The tensor to apply abs to.
///
/// # Returns
///
/// A tensor with absolute values.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For calculating abs of the elements of a tensor, users should prefer the [Tensor::abs](Tensor::abs) function,
/// which is more high-level and designed for public use.
fn abs<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D>;
/// Element-wise power of a tensor to a float tensor
///
/// # Arguments
/// * `tensor` - The tensor to apply power to.
/// * `power` - The power to apply to the tensor.
fn powf<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Primitive<D>)
-> Self::Primitive<D>;
/// Element-wise power of a tensor
///
/// # Arguments
/// * `tensor` - The tensor to apply power to.
/// * `power` - The power to apply to the tensor.
fn powi<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Primitive<D>)
-> Self::Primitive<D>;
/// Element-wise power of a tensor to a scalar float
///
/// # Arguments
/// * `tensor` - The tensor to apply power to.
/// * `power` - The power to apply to the tensor.
fn powf_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Element-wise power of a tensor to a scalar int
///
/// # Arguments
/// * `tensor` - The tensor to apply power to.
/// * `power` - The power to apply to the tensor.
fn powi_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D>;
/// Create a random tensor.
///
/// # Arguments
///
/// * `shape` - The shape of the output tensor.
/// * `distribution` - The distribution used to sample.
/// * `device` - The device to use.
///
/// # Returns
///
/// A new tensor.
///
/// # Remarks
///
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// Users should prefer the [Tensor::random](Tensor::random) function,
/// which is more high-level and designed for public use.
fn random<const D: usize>(
shape: Shape<D>,
distribution: Distribution,
device: &B::Device,
) -> Self::Primitive<D>;
/// Sort the elements of the input `tensor` by value along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
///
/// # Arguments
///
/// * `tensor` - The input tensor.
/// * `dim` - The axis along which to sort.
/// * `descending` - The sorting order.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor, where the elements are sorted by value.
///
/// # Remarks
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// Users should prefer the [Tensor::sort](Tensor::sort) function,
/// which is more high-level and designed for public use.
fn sort<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> Self::Primitive<D>;
/// Sort the elements of the input `tensor` by value along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
///
/// # Arguments
///
/// * `tensor` - The input tensor.
/// * `dim` - The axis along which to sort.
/// * `descending` - The sorting order.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor and corresponding indices, where
/// the elements are sorted by value and the indices map back to the original input tensor.
///
/// # Remarks
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// For sorting the elements of a tensor, users should prefer the
/// [Tensor::sort_with_indices](Tensor::sort_with_indices) function, which is more high-level
/// and designed for public use.
fn sort_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> (Self::Primitive<D>, <Int as TensorKind<B>>::Primitive<D>);
/// Returns the indices that sort the elements of the input `tensor` by value along a given dimension.
///
/// This sort is unstable (i.e., may reorder equal elements).
///
/// # Arguments
///
/// * `tensor` - The input tensor.
/// * `dim` - The axis along which to sort.
/// * `descending` - The sorting order.
///
/// # Returns
///
/// A tensor with the same shape as the input tensor the indices map back to the original input tensor.
///
/// # Remarks
/// This is a low-level function used internally by the library to call different backend functions
/// with static dispatch. It is not designed for direct usage by users, and not recommended to import
/// or use this function directly.
///
/// Users should prefer the [Tensor::argsort](Tensor::argsort) function,
/// which is more high-level and designed for public use.
fn argsort<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> <Int as TensorKind<B>>::Primitive<D>;
}
impl<B: Backend> Numeric<B> for Int {
fn add<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::int_add(lhs, rhs)
}
fn add_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
B::int_add_scalar(lhs, rhs.elem())
}
fn sub<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::int_sub(lhs, rhs)
}
fn sub_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
B::int_sub_scalar(lhs, rhs.elem())
}
fn div<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::int_div(lhs, rhs)
}
fn div_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
B::int_div_scalar(lhs, rhs.elem())
}
fn remainder_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
B::int_remainder_scalar(lhs, rhs.elem())
}
fn mul<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::int_mul(lhs, rhs)
}
fn mul_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
B::int_mul_scalar(lhs, rhs.elem())
}
fn neg<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D> {
B::int_neg(tensor)
}
fn zeros<const D: usize>(shape: Shape<D>, device: &B::Device) -> Self::Primitive<D> {
B::int_zeros(shape, device)
}
fn ones<const D: usize>(shape: Shape<D>, device: &B::Device) -> Self::Primitive<D> {
B::int_ones(shape, device)
}
fn full<const D: usize, E: ElementConversion>(
shape: Shape<D>,
fill_value: E,
device: &B::Device,
) -> Self::Primitive<D> {
B::int_full(shape, fill_value.elem(), device)
}
fn sum<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
B::int_sum(tensor)
}
fn sum_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
B::int_sum_dim(tensor, dim)
}
fn prod<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
B::int_prod(tensor)
}
fn prod_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
B::int_prod_dim(tensor, dim)
}
fn mean<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
B::int_mean(tensor)
}
fn mean_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
B::int_mean_dim(tensor, dim)
}
fn equal_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem) -> Tensor<B, D, Bool> {
Tensor::new(B::int_equal_elem(lhs, rhs))
}
fn not_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_not_equal_elem(lhs, rhs))
}
fn greater<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_greater(lhs, rhs))
}
fn greater_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_greater_elem(lhs, rhs))
}
fn greater_equal<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_greater_equal(lhs, rhs))
}
fn greater_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_greater_equal_elem(lhs, rhs))
}
fn lower<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_lower(lhs, rhs))
}
fn lower_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem) -> Tensor<B, D, Bool> {
Tensor::new(B::int_lower_elem(lhs, rhs))
}
fn lower_equal<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_lower_equal(lhs, rhs))
}
fn lower_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::int_lower_equal_elem(lhs, rhs))
}
fn mask_where<const D: usize>(
tensor: Self::Primitive<D>,
mask: Tensor<B, D, Bool>,
source: Self::Primitive<D>,
) -> Self::Primitive<D> {
B::int_mask_where(tensor, mask.primitive, source)
}
fn mask_fill<const D: usize>(
tensor: Self::Primitive<D>,
mask: Tensor<B, D, Bool>,
value: Self::Elem,
) -> Self::Primitive<D> {
B::int_mask_fill(tensor, mask.primitive, value)
}
fn select<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
indices: Tensor<B, 1, Int>,
) -> Self::Primitive<D> {
B::int_select(tensor, dim, indices.primitive)
}
fn select_assign<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
indices: Tensor<B, 1, Int>,
values: Self::Primitive<D>,
) -> Self::Primitive<D> {
B::int_select_assign(tensor, dim, indices.primitive, values)
}
fn gather<const D: usize>(
dim: usize,
tensor: Self::Primitive<D>,
indices: Tensor<B, D, Int>,
) -> Self::Primitive<D> {
B::int_gather(dim, tensor, indices.primitive)
}
fn scatter<const D: usize>(
dim: usize,
tensor: Self::Primitive<D>,
indices: Tensor<B, D, Int>,
values: Self::Primitive<D>,
) -> Self::Primitive<D> {
B::int_scatter(dim, tensor, indices.primitive, values)
}
fn argmax<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> <B as Backend>::IntTensorPrimitive<D> {
B::int_argmax(tensor, dim)
}
fn argmin<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> <B as Backend>::IntTensorPrimitive<D> {
B::int_argmin(tensor, dim)
}
fn max<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
B::int_max(tensor)
}
fn max_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
B::int_max_dim(tensor, dim)
}
fn max_dim_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> (Self::Primitive<D>, <B as Backend>::IntTensorPrimitive<D>) {
B::int_max_dim_with_indices(tensor, dim)
}
fn min<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
B::int_min(tensor)
}
fn min_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
B::int_min_dim(tensor, dim)
}
fn min_dim_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> (Self::Primitive<D>, <B as Backend>::IntTensorPrimitive<D>) {
B::int_min_dim_with_indices(tensor, dim)
}
fn clamp<const D: usize>(
tensor: Self::Primitive<D>,
min: B::IntElem,
max: B::IntElem,
) -> Self::Primitive<D> {
B::int_clamp(tensor, min, max)
}
fn clamp_min<const D: usize>(
tensor: Self::Primitive<D>,
min: B::IntElem,
) -> Self::Primitive<D> {
B::int_clamp_min(tensor, min)
}
fn clamp_max<const D: usize>(
tensor: Self::Primitive<D>,
max: B::IntElem,
) -> Self::Primitive<D> {
B::int_clamp_max(tensor, max)
}
fn abs<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D> {
B::int_abs(tensor)
}
fn powf<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Self::Primitive<D> {
B::int_powf(lhs, B::int_into_float(rhs))
}
fn powf_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::int_powf_scalar(lhs, rhs.elem())
}
fn powi<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Self::Primitive<D> {
B::int_powi(lhs, rhs)
}
fn powi_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
B::int_powf_scalar(lhs, rhs.elem())
}
fn random<const D: usize>(
shape: Shape<D>,
distribution: Distribution,
device: &<B as Backend>::Device,
) -> Self::Primitive<D> {
B::int_random(shape, distribution, device)
}
fn sign<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D> {
B::int_sign(tensor)
}
fn sort<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> Self::Primitive<D> {
B::int_sort(tensor, dim, descending)
}
fn sort_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> (Self::Primitive<D>, <Int as TensorKind<B>>::Primitive<D>) {
B::int_sort_with_indices(tensor, dim, descending)
}
fn argsort<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::int_argsort(tensor, dim, descending)
}
}
impl<B: Backend> Numeric<B> for Float {
fn add<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Float as TensorKind<B>>::Primitive<D> {
TensorPrimitive::Float(B::float_add(lhs.tensor(), rhs.tensor()))
}
fn add_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_add_scalar(lhs.tensor(), rhs.elem()))
}
fn sub<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Float as TensorKind<B>>::Primitive<D> {
TensorPrimitive::Float(B::float_sub(lhs.tensor(), rhs.tensor()))
}
fn sub_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_sub_scalar(lhs.tensor(), rhs.elem()))
}
fn div<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Float as TensorKind<B>>::Primitive<D> {
TensorPrimitive::Float(B::float_div(lhs.tensor(), rhs.tensor()))
}
fn div_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_div_scalar(lhs.tensor(), rhs.elem()))
}
fn remainder_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_remainder_scalar(lhs.tensor(), rhs.elem()))
}
fn mul<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> <Float as TensorKind<B>>::Primitive<D> {
TensorPrimitive::Float(B::float_mul(lhs.tensor(), rhs.tensor()))
}
fn mul_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_mul_scalar(lhs.tensor(), rhs.elem()))
}
fn neg<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_neg(tensor.tensor()))
}
fn zeros<const D: usize>(shape: Shape<D>, device: &B::Device) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_zeros(shape, device))
}
fn ones<const D: usize>(shape: Shape<D>, device: &B::Device) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_ones(shape, device))
}
fn full<const D: usize, E: ElementConversion>(
shape: Shape<D>,
fill_value: E,
device: &B::Device,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_full(shape, fill_value.elem(), device))
}
fn sum<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
TensorPrimitive::Float(B::float_sum(tensor.tensor()))
}
fn sum_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_sum_dim(tensor.tensor(), dim))
}
fn prod<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
TensorPrimitive::Float(B::float_prod(tensor.tensor()))
}
fn prod_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_prod_dim(tensor.tensor(), dim))
}
fn mean<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
TensorPrimitive::Float(B::float_mean(tensor.tensor()))
}
fn mean_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_mean_dim(tensor.tensor(), dim))
}
fn equal_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem) -> Tensor<B, D, Bool> {
Tensor::new(B::float_equal_elem(lhs.tensor(), rhs))
}
fn not_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_not_equal_elem(lhs.tensor(), rhs))
}
fn greater<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_greater(lhs.tensor(), rhs.tensor()))
}
fn greater_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_greater_elem(lhs.tensor(), rhs))
}
fn greater_equal<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_greater_equal(lhs.tensor(), rhs.tensor()))
}
fn greater_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_greater_equal_elem(lhs.tensor(), rhs))
}
fn lower<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_lower(lhs.tensor(), rhs.tensor()))
}
fn lower_elem<const D: usize>(lhs: Self::Primitive<D>, rhs: Self::Elem) -> Tensor<B, D, Bool> {
Tensor::new(B::float_lower_elem(lhs.tensor(), rhs))
}
fn lower_equal<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_lower_equal(lhs.tensor(), rhs.tensor()))
}
fn lower_equal_elem<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Elem,
) -> Tensor<B, D, Bool> {
Tensor::new(B::float_lower_equal_elem(lhs.tensor(), rhs))
}
fn mask_where<const D: usize>(
tensor: Self::Primitive<D>,
mask: Tensor<B, D, Bool>,
source: Self::Primitive<D>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_mask_where(
tensor.tensor(),
mask.primitive,
source.tensor(),
))
}
fn mask_fill<const D: usize>(
tensor: Self::Primitive<D>,
mask: Tensor<B, D, Bool>,
value: Self::Elem,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_mask_fill(tensor.tensor(), mask.primitive, value))
}
fn select<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
indices: Tensor<B, 1, Int>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_select(tensor.tensor(), dim, indices.primitive))
}
fn select_assign<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
indices: Tensor<B, 1, Int>,
values: Self::Primitive<D>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_select_assign(
tensor.tensor(),
dim,
indices.primitive,
values.tensor(),
))
}
fn gather<const D: usize>(
dim: usize,
tensor: Self::Primitive<D>,
indices: Tensor<B, D, Int>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_gather(dim, tensor.tensor(), indices.primitive))
}
fn scatter<const D: usize>(
dim: usize,
tensor: Self::Primitive<D>,
indices: Tensor<B, D, Int>,
values: Self::Primitive<D>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_scatter(
dim,
tensor.tensor(),
indices.primitive,
values.tensor(),
))
}
fn argmax<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> <B as Backend>::IntTensorPrimitive<D> {
B::float_argmax(tensor.tensor(), dim)
}
fn argmin<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> <B as Backend>::IntTensorPrimitive<D> {
B::float_argmin(tensor.tensor(), dim)
}
fn max<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
TensorPrimitive::Float(B::float_max(tensor.tensor()))
}
fn max_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_max_dim(tensor.tensor(), dim))
}
fn max_dim_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> (Self::Primitive<D>, <B as Backend>::IntTensorPrimitive<D>) {
let (tensor, indices) = B::float_max_dim_with_indices(tensor.tensor(), dim);
(TensorPrimitive::Float(tensor), indices)
}
fn min<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<1> {
TensorPrimitive::Float(B::float_min(tensor.tensor()))
}
fn min_dim<const D: usize>(tensor: Self::Primitive<D>, dim: usize) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_min_dim(tensor.tensor(), dim))
}
fn min_dim_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
) -> (Self::Primitive<D>, <B as Backend>::IntTensorPrimitive<D>) {
let (tensor, indices) = B::float_min_dim_with_indices(tensor.tensor(), dim);
(TensorPrimitive::Float(tensor), indices)
}
fn clamp<const D: usize>(
tensor: Self::Primitive<D>,
min: B::FloatElem,
max: B::FloatElem,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_clamp(tensor.tensor(), min, max))
}
fn clamp_min<const D: usize>(
tensor: Self::Primitive<D>,
min: B::FloatElem,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_clamp_min(tensor.tensor(), min))
}
fn clamp_max<const D: usize>(
tensor: Self::Primitive<D>,
max: B::FloatElem,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_clamp_max(tensor.tensor(), max))
}
fn abs<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_abs(tensor.tensor()))
}
fn powf<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_powf(lhs.tensor(), rhs.tensor()))
}
fn powf_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_powf_scalar(lhs.tensor(), rhs.elem()))
}
fn powi<const D: usize>(
lhs: Self::Primitive<D>,
rhs: Self::Primitive<D>,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_powf(lhs.tensor(), rhs.tensor()))
}
fn powi_scalar<const D: usize, E: ElementConversion>(
lhs: Self::Primitive<D>,
rhs: E,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_powf_scalar(lhs.tensor(), rhs.elem()))
}
fn random<const D: usize>(
shape: Shape<D>,
distribution: Distribution,
device: &<B as Backend>::Device,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_random(shape, distribution, device))
}
fn sign<const D: usize>(tensor: Self::Primitive<D>) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_sign(tensor.tensor()))
}
fn sort<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> Self::Primitive<D> {
TensorPrimitive::Float(B::float_sort(tensor.tensor(), dim, descending))
}
fn sort_with_indices<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> (Self::Primitive<D>, <Int as TensorKind<B>>::Primitive<D>) {
let (tensor, indices) = B::float_sort_with_indices(tensor.tensor(), dim, descending);
(TensorPrimitive::Float(tensor), indices)
}
fn argsort<const D: usize>(
tensor: Self::Primitive<D>,
dim: usize,
descending: bool,
) -> <Int as TensorKind<B>>::Primitive<D> {
B::float_argsort(tensor.tensor(), dim, descending)
}
}
impl<B, const D: usize, K> core::ops::Add<Self> for Tensor<B, D, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn add(self, rhs: Tensor<B, D, K>) -> Self {
Self::add(self, rhs)
}
}
impl<E, const D: usize, B, K> core::ops::Add<E> for Tensor<B, D, K>
where
E: ElementConversion,
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn add(self, other: E) -> Self {
Tensor::add_scalar(self, other)
}
}
impl<B, const D: usize, K> core::ops::Sub<Tensor<B, D, K>> for Tensor<B, D, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn sub(self, rhs: Tensor<B, D, K>) -> Self {
Tensor::sub(self, rhs)
}
}
impl<E, const D: usize, B, K> core::ops::Sub<E> for Tensor<B, D, K>
where
E: ElementConversion,
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn sub(self, other: E) -> Self {
Tensor::sub_scalar(self, other)
}
}
impl<B, const D: usize, K> core::ops::Div<Tensor<B, D, K>> for Tensor<B, D, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn div(self, rhs: Tensor<B, D, K>) -> Self {
Tensor::div(self, rhs)
}
}
impl<E, const D: usize, B, K> core::ops::Div<E> for Tensor<B, D, K>
where
E: ElementConversion,
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn div(self, other: E) -> Self {
Tensor::div_scalar(self, other)
}
}
impl<E, const D: usize, B, K> core::ops::Rem<E> for Tensor<B, D, K>
where
E: ElementConversion,
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn rem(self, other: E) -> Self {
Tensor::remainder_scalar(self, other)
}
}
impl<B, const D: usize, K> core::ops::Mul<Tensor<B, D, K>> for Tensor<B, D, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn mul(self, rhs: Tensor<B, D, K>) -> Self {
Tensor::mul(self, rhs)
}
}
impl<E, const D: usize, B, K> core::ops::Mul<E> for Tensor<B, D, K>
where
E: ElementConversion,
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn mul(self, other: E) -> Self {
Tensor::mul_scalar(self, other)
}
}
impl<B, const D: usize, K> core::ops::Neg for Tensor<B, D, K>
where
B: Backend,
K: Numeric<B>,
K::Elem: Element,
{
type Output = Self;
fn neg(self) -> Self {
Tensor::neg(self)
}
}