Incorrect cuda-nvcc version about condapkg.jl HOT 3 OPEN

What about channels = ["nvidia"] or channels = ["nvidia/label/cuda-11.7.1"]?

from condapkg.jl.

The underlying issue is that CondaPkg passes -c conda-forge if you don't specify any channels, and so it's finding a bunch of compatible packages from the conda-forge channel with higher version numbers, and therefore installing those.

Currently CondaPkg specifies --no-channel-priority meaning that all channels are given equal priority. A future CondaPkg could specify a priority (e.g. put conda-forge at the bottom) which could mean that nvidia has higher priority than conda-forge.

from condapkg.jl.

channels = ["nvidia/label/cuda-11.7.1"] yields the correct cuda-nvcc version. For the following CondaPkg.toml

channels = ["nvidia/label/cuda-11.7.1", "conda-forge"]

[deps.cuda-toolkit]
channel = "nvidia/label/cuda-11.7.1"
version = "11.7.1"

conda up installs the wrong cuda-nvcc. This prevents the installation of other packages from conda-forge.

To clarify, CondaPkg installs the correct cuda-toolkit version from "nvidia/label/cuda-11.7.1" but it installs the dependencies, e.g., cuda-nvcc, with higher version numbers from "conda-forge". Am I right?

from condapkg.jl.