CUDA Standard Library

The CUDA Standard Library provides a curated set of abstractions for writing performant, reliable, and understandable GPU kernels using the Rustc NVVM backend.

This library will build on non-nvptx targets or targets not using the nvvm backend. However, it will not be usable, and it will throw linker errors if you attempt to use most of the functions in the library. However, [kernel] automatically cfg-gates the function annotated for nvptx64 or nvptx, therefore, no "actual" functions from this crate should be used when compiling for a non-nvptx target.

This crate cannot be used with the llvm ptx backend either, it heavily relies on external functions implicitly defined by the nvvm backend, as well as internal attributes.

Structure

This library tries to follow the structure of the Rust standard library to some degree, where different concepts are separated into their own modules.

The Prelude

In order to simplify imports, we provide a prelude module which contains GPU analogues to standard library structures as well as common imports such as [thread].