kernels/pr_321/en/builder/build-variants.md

# Build variants

A kernel can be compliant for a specific compute framework (e.g. CUDA) or
architecture (e.g. x86_64). For compliance with a compute framework and
architecture combination, all the build variants listed below must be
available. This list will be updated as new PyTorch versions are released.

## CPU aarch64-darwin

- `torch210-cpu-aarch64-darwin`
- `torch29-cpu-aarch64-darwin`

## Metal aarch64-darwin

- `torch210-metal-aarch64-darwin`
- `torch29-metal-aarch64-darwin`

## CPU aarch64-linux

- `torch210-cxx11-cpu-aarch64-linux`
- `torch29-cxx11-cpu-aarch64-linux`

## CUDA aarch64-linux

- `torch210-cxx11-cu126-aarch64-linux`
- `torch210-cxx11-cu128-aarch64-linux`
- `torch210-cxx11-cu130-aarch64-linux`
- `torch29-cxx11-cu126-aarch64-linux`
- `torch29-cxx11-cu128-aarch64-linux`
- `torch29-cxx11-cu129-aarch64-linux`
- `torch29-cxx11-cu130-aarch64-linux`

## CPU x86_64-linux

- `torch210-cxx11-cpu-x86_64-linux`
- `torch29-cxx11-cpu-x86_64-linux`

## CUDA x86_64-linux

- `torch210-cxx11-cu126-x86_64-linux`
- `torch210-cxx11-cu128-x86_64-linux`
- `torch210-cxx11-cu130-x86_64-linux`
- `torch29-cxx11-cu126-x86_64-linux`
- `torch29-cxx11-cu128-x86_64-linux`
- `torch29-cxx11-cu129-x86_64-linux`
- `torch29-cxx11-cu130-x86_64-linux`

## ROCm x86_64-linux

- `torch210-cxx11-rocm70-x86_64-linux`
- `torch210-cxx11-rocm71-x86_64-linux`
- `torch29-cxx11-rocm63-x86_64-linux`
- `torch29-cxx11-rocm64-x86_64-linux`

## XPU x86_64-linux

- `torch210-cxx11-xpu20253-x86_64-linux`
- `torch29-cxx11-xpu20252-x86_64-linux`

## Python-only kernels

Kernels that are in pure Python (e.g. Triton kernels) only need to provide
one or more of the following variants:

- `torch-cpu`
- `torch-cuda`
- `torch-metal`
- `torch-rocm`
- `torch-xpu`