Trait Backend 

pub trait Backend {
    // Required methods
    fn add(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>;
    fn mul(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>;
    fn matmul(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>;
    fn sum_all(a: &Tensor) -> EtensorResult<Tensor>;
    fn mean_all(a: &Tensor) -> EtensorResult<Tensor>;
    fn max_all(a: &Tensor) -> EtensorResult<Tensor>;
    fn relu(a: &Tensor) -> EtensorResult<Tensor>;
    fn sigmoid(a: &Tensor) -> EtensorResult<Tensor>;
    fn add_relu(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>;
    fn linear(x: &Tensor, w: &Tensor, b: &Tensor) -> EtensorResult<Tensor>;
}

The foundational contract that all physical hardware backends must fulfill.

Required Methods

fn add(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>

Executes an element-wise addition (a + b) and returns a dynamically allocated output tensor.

fn mul(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>

Executes an element-wise multiplication (a * b) and returns a dynamically allocated output tensor.

fn matmul(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>

Executes matrix multiplication (a @ b) and returns a dynamically allocated output tensor.

fn sum_all(a: &Tensor) -> EtensorResult<Tensor>

Executes a global sum reduction, collapsing the tensor into a single scalar.

fn mean_all(a: &Tensor) -> EtensorResult<Tensor>

Executes a global mean reduction, collapsing the tensor into a single scalar.

fn max_all(a: &Tensor) -> EtensorResult<Tensor>

Executes a global max reduction, collapsing the tensor into a single scalar.

fn relu(a: &Tensor) -> EtensorResult<Tensor>

Executes the Rectified Linear Unit (ReLU) activation function.

fn sigmoid(a: &Tensor) -> EtensorResult<Tensor>

Executes the Sigmoid activation function.

fn add_relu(a: &Tensor, b: &Tensor) -> EtensorResult<Tensor>

Executes Fused Addition and ReLU: f(A, B) = max(0, A + B)

fn linear(x: &Tensor, w: &Tensor, b: &Tensor) -> EtensorResult<Tensor>

Executes Fused Linear Layer: y = X @ W + b

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Backend for CpuBackend