GPU Offload in Rust: Portable, Safe, and Fast (2026 Guide)
GPU offload in Rust is the practice of compiling Rust code into GPU kernels instead of writing them in CUDA C++ or HIP. In 2026 there are four real ways to do it: wgpu with WGSL shaders, CubeCL’s #[cube] kernels, rustc’s experimental std::offload built on LLVM Offload, and vendor-specific paths such as cudarc or NVIDIA’s cuda-oxide. Only the rustc path promises safe Rust kernels with automatic data movement — and it is still nightly-only. ...