Crate burn_dispatch 

Burn multi-backend dispatch.

Available Backends

The dispatch backend supports the following variants, each enabled via cargo features:

Backend	Feature	Description
Cpu	cpu	Rust CPU backend (MLIR + LLVM)
Cuda	cuda	NVIDIA CUDA backend
Metal	metal	Apple Metal backend via wgpu (MSL)
Rocm	rocm	AMD ROCm backend
Vulkan	vulkan	Vulkan backend via wgpu (SPIR-V)
Wgpu	webgpu	WebGPU backend via wgpu (WGSL)
Flex	flex	Pure Rust CPU backend using burn-flex
NdArray	ndarray	Pure Rust CPU backend using ndarray (legacy - prefer flex)
LibTorch	tch	Libtorch backend via tch
Autodiff	autodiff	Autodiff-enabled backend (used in combination with any of the backends above)

Note: WGPU-based backends (metal, vulkan, webgpu) are mutually exclusive. All other backends can be combined freely.

WGPU Backend Exclusivity

The WGPU-based backends (metal, vulkan, webgpu) are mutually exclusive due to the current automatic compile, which can only select one target at a time.

Enable only one of these features in your Cargo.toml:

• metal
• vulkan
• webgpu

If multiple WGPU features are enabled, the build script will emit a warning and disable all WGPU backends to prevent unintended behavior.

Structs

Dispatch

The main execution backend in Burn.

DispatchTensor

A tensor that can dispatch operations to any enabled backend at runtime.

Enums

BackendTensor

Tensor which points to a backend tensor primitive kind.

DispatchDevice

Represents a device for the Dispatch.

DispatchTensorKind

Internal representation of a DispatchTensor.