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Re: cuda support of src:pytorch

Hi team,

I think I lack enough time and energy to pick up any communication
related to nvidia. For your reference, the last bits from ftp-masters
about cudnn can be found here:


On Thu, 2020-12-03 at 03:08 +0000, Mo Zhou wrote:
> Hi team,
> I reviewed cuDNN's license again, it finally explicitly declared that
> the .h, and .so files are distributable (Chapter 8)
> https://docs.nvidia.com/deeplearning/cudnn/pdf/cuDNN-SLA.pdf
> That means we can upload it to the non-free section, without
> modifying
> the files (e.g. stripping). The packaging work should be done in
> nvidia
> team, and I've already set up a repository[2] on salsa many years
> ago.
> And we can copy some bits from Archlinux packaging:
> https://github.com/archlinux/svntogit-community/blob/packages/cudnn/trunk/PKGBUILD
> Apart from cudnn, missing from the archive is nccl 
> https://github.com/NVIDIA/nccl ;(BSD-3-Clause, can enter the contrib
> section).
> As another cuda-related dependency, src:cub is already present in the
> archive, thanks to the debian nvidia maintainers.
> IIUC, B-D: nvidia-cuda-toolkit, libcudnn-dev, libcub-dev, libnccl-
> dev,
> (optional: libmagma-dev) should be enough for us to enable the build
> of pytorch-cuda.
> Should we hurry up, we may still have chance to get a cuda version of
> pytorch into the archive. Anybody willing to lend me a hand on the
> nccl
> packaging [1]? Currently I'm still working on the unstable->testing
> migration issue of pytorch, and plan to investigate src:nvidia-cudnn
> next.
> [1] repo should be hosted in nvidia-team
> https://salsa.debian.org/nvidia-team/nvidia-nccl
> [2] https://salsa.debian.org/nvidia-team/nvidia-cudnn

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