Incorrect install command for torch 1.8.1 using conda

📚 Documentation

The "previous versions" installation guide indicates conda installs (for linux & windows) of torch 1.8.1 should use cudatoolkit=11.3; this should be cudatoolkit=11.1. The conda website does not have binaries for cuda 11.3 for torch 1.8.1, but does have cuda 11.1 binaries. This would also make sense since it matches the pip wheel instructions for torch 1.8.1 (and cudatoolkit for torch 1.8.0).

Link to the documentation:
https://pytorch.org/get-started/previous-versions/#linux-and-windows-2

conda binaries for comparison: https://anaconda.org/pytorch/pytorch/files?version=1.8.1&type=conda&page=4

I think the change just amounts to swapping from:

# CUDA 11.3
conda install pytorch==1.8.1 torchvision==0.9.1 torchaudio==0.8.1 cudatoolkit=11.3 -c pytorch -c conda-forge

to

# CUDA 11.1
conda install pytorch==1.8.1 torchvision==0.9.1 torchaudio==0.8.1 cudatoolkit=11.1 -c pytorch -c conda-forge

Open the linked previous-versions installation guide and compare the torch 1.8.1 conda commands with the available binaries linked in the issue. Change the Linux and Windows CUDA 11.3 examples to CUDA 11.1, then verify that the displayed package versions and commands match the issue’s proposed command.