11.8

conda create -n 3dgs python=3.10 -y
conda activate 3dgs

conda install -c nvidia cuda-nvcc==11.8.89 -y
conda install nvidia/label/cuda-11.8.0::cuda-cudart-dev -y

conda install pytorch torchvision pytorch-cuda=11.8 -c pytorch -c nvidia -y

pip install -r requirements.txt

12.1

conda install -c nvidia cuda-nvcc==12.1.105  -y
conda install nvidia/label/cuda-12.1.1::cuda-cudart-dev -y

conda install pytorch torchvision pytorch-cuda=12.1 -c pytorch -c nvidia -y

pip install -r requirements.txt

12.4

conda install -c nvidia cuda-nvcc==12.4.131 -y
conda install nvidia/label/cuda-12.4.1::cuda-cudart-dev -y

conda install pytorch torchvision pytorch-cuda=12.4 -c pytorch -c nvidia -y

pip install -r requirements.txt

conda install -c xformers xformers

Conda不能安装pytorch？

先运行

conda install -c conda-forge mkl=2023.1