环境配置

18的nvcc —version显示的CUDA版本（10.0）和nvidia-smi版本（12.4）不一样

conda create -n sas_det python=3.8
conda activate sas_det
conda install pytorch==1.12.0 torchvision==0.13.0 torchaudio==0.12.0 cudatoolkit=11.3 -c pytorch
conda install pytorch==1.12.1 torchvision==0.13.1 torchaudio==0.12.1 cudatoolkit=10.2 -c pytorch
conda install pytorch==1.2.0 torchvision==0.4.0 cudatoolkit=10.0 -c pytorch
git clone https://github.com/facebookresearch/detectron2.git
conda install ninja

python -m pip install -e detectron2 # 没法改cpp_extension.py来跳过CUDA版本检查（因为代码在/tmp下），采用下面的

cd detectron2
python setup.py build --force develop

报错：

File "/tmp/pip-build-env-xsd6d80w/overlay/lib/python3.8/site-packages/torch/utils/cpp_extension.py", line 413, in _check_cuda_version
      raise RuntimeError(CUDA_MISMATCH_MESSAGE.format(cuda_str_version, torch.version.cuda))
  RuntimeError:
  The detected CUDA version (10.0) mismatches the version that was used to compile
  PyTorch (12.1). Please make sure to use the same CUDA versions.

detection2中添加pyproject.toml文件，内容如下：

[build-system]
requires = ["setuptools>=64", "torch"]
build-backend = "setuptools.build_meta"

如果你使用的是像pip这样的包管理器，可以使用 pip cache purge 清理缓存。

pip cache purge

编译问题https://blog.51cto.com/u_15353042/3752099

配置文件修改https://developer.aliyun.com/article/1626064

跳过CUDA版本检查https://blog.csdn.net/m0_51516317/article/details/139423784

报错：

In file included from /usr/local/cuda-10.0/include/cuda_runtime.h:83,
                 from <command-line>:
/usr/local/cuda-10.0/include/crt/host_config.h:129:2: error: #error -- unsupported GNU version! gcc versions later than 7 are not supported!
  129 | #error -- unsupported GNU version! gcc versions later than 7 are not supported!
      |  ^~~~~
error: command '/usr/local/cuda-10.0/bin/nvcc' failed with exit code 1

sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-6 10
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-6 10

可以使用 update-alternatives --config g++ 和 update-alternatives --config gcc 来查看和选择你想要使用的 g++ 和 gcc 版本

sudo yum update
sudo yum install gcc-7 g++-7