anaconda 提前已经安装好了

这里我先创建了虚拟环境
conda create -n pytorch1.1 python=3.6
conda info --envs   # 查找虚拟环境

进入虚拟环境
conda activate pytorch1.1
发现报错
CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
If your shell is Bash or a Bourne variant, enable conda for the current user with

根据提示 添加两行

echo ". /home/wp/anaconda3/etc/profile.d/conda.sh" >> ~/.bashrc
echo "conda activate" >> ~/.bashrc
进行更新：source ~/.bashrc

进入虚拟环境
conda activate pytorch1.1
进行安装
conda install pytorch torchvision cpuonly -c pytorch

此时会因为网速安装失败（安装成功跳过）
所以进行手动安装，进入
https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch/linux-64/
找到 pytorch-1.3.1-py3.6_cpu_0.tar.bz2
下载后放到 /home/wp 目录下
进行本地安装
conda install --use-local pytorch-1.3.1-py3.6_cpu_0.tar.bz2


问题1
ImportError: libmkl_intel_lp64.so: cannot open shared object file: No such file or directory

解决链接[https://www.cnblogs.com/denny402/p/10848506.html](https://www.cnblogs.com/denny402/p/10848506.html)
查找
sudo find /home -name libmkl_intel_lp64.so
vim ~/.bashrc
export LD_LIBRARY_PATH=/home/xu/anaconda3/lib:$LD_LIBRARY_PATH
source ./.bashrc
echo $LD_LIBRARY_PATH



conda install --debug mkl


问题2
ImportError: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.11' not found (required by /home/wp/anaconda3/envs/pytorch1.1/lib/python3.6/site-packages/torch/lib/libtorch.so)

解决链接：
[https://blog.csdn.net/m0_37644085/article/details/81914288](https://blog.csdn.net/m0_37644085/article/details/81914288)

[https://www.jianshu.com/p/6be231fc2646](https://www.jianshu.com/p/6be231fc2646)

安装
sudo apt-get install libstdc++6
查看
sudo strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep CXXABI
这里查找到的gcc都是老版本
所以找新版本
sudo find / -name "libstdc++.so*"
将最新的动态库进行copy
sudo cp /home/wp/anaconda3/x86_64-conda_cos6-linux-gnu/sysroot/lib/libstdc++.so.6.0.24 /usr/lib/x86_64-linux-gnu/
接下来重建默认库的软连接:
cd /usr/lib/x86_64-linux-gnu/
删除原来软连接：
sudo rm -rf libstdc++.so.6

将默认库的软连接指向最新动态库：
sudo ln -s libstdc++.so.6.0.24 libstdc++.so.6
默认动态库升级完成。重新运行以下命令检查动态库：
sudo strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep 'CXXABI' 


终于再进入到虚拟环境 
打开python
import torch 成功



参考链接：https://zhuanlan.zhihu.com/p/92292882
https://www.cnblogs.com/denny402/p/10848506.html
https://blog.csdn.net/qq_22704577/article/details/53928059
https://www.jianshu.com/p/6be231fc2646