DoctorPopi/python_wheelhouse

CUDA Extension Wheelhouse

Prebuilt Python wheels for CUDA / PyTorch extensions (cumesh, flash_attn, flex_gemm, natten, nvdiffrast, nvdiffrec_render, o_voxel). Compiling these from source dominates install time — often hours on a single machine. This dataset is a shared cache so machines and CI can build once, then reuse the wheel and skip the compile entirely.

Built for GPU archs sm75, sm80, sm89, sm120 against torch2.7/torch2.9 (CUDA 12.8), for CPython cp310 and cp312.

Why a wheel can't just be cached by filename

A compiled-extension wheel's runnability depends on four axes, but the wheel filename only encodes two (dist name + Python ABI tag). The other two — the GPU compute architecture and the torch version it was ABI-linked against — are invisible in the name. A wheel built for sm120 / torch2.9 installs fine on sm89 / torch2.7 and then dies at the first kernel launch (no kernel image available). So wheels are stored under a path that carries arch + torch.

Layout

<package>/sm<arch>/torch<major.minor>-cu<cuda>/<wheel>.whl

Examples:

flash_attn/sm89/torch2.9-cu128/flash_attn-2.8.3+cu128torch2.9-cp312-cp312-linux_x86_64.whl
nvdiffrast/sm89/torch2.9-cu128/nvdiffrast-0.4.0-cp312-cp312-linux_x86_64.whl
natten/sm120/torch2.7-cu126/natten-0.21.0-cp310-cp310-linux_x86_64.whl

• sm<arch> — GPU compute capability of the card the wheel runs on (e.g. sm89 for Ada / RTX 40xx, sm120 for Blackwell). Keyed off the real GPU, not a multi-arch build list.
• torch<mm>-cu<cuda> — the torch + CUDA the extension was linked against (e.g. torch2.9-cu128).
• The Python ABI tag (cp310, cp312, …) lives in the wheel filename itself.

Usage

Download a specific wheel:

from huggingface_hub import hf_hub_download

path = hf_hub_download(
    repo_id="DoctorPopi/python_wheelhouse",
    repo_type="dataset",
    filename="flash_attn/sm89/torch2.9-cu128/flash_attn-2.8.3+cu128torch2.9-cp312-cp312-linux_x86_64.whl",
)
# then: pip install --force-reinstall --no-deps <path>

Install compiled wheels with --force-reinstall --no-deps: several declare an unpinned torch requirement and a bare reinstall would clobber the env's pinned torch, breaking every other C-extension built against the original ABI.

Licensing

Each wheel is a build of its upstream project and remains under that project's own license (e.g. natten, nvdiffrast, flash-attention each have their own terms). This dataset only redistributes compiled artifacts for convenience; refer to each package's upstream repository for license terms.