源码编译pytorch-1.2.0

ubuntu16.04自带的ｇ++,gcc为5.4，因此另外安装4.9
sudo apt install gcc-4.9 g++-4.9
export CC="gcc-4.9"
export CXX="g++-4.9"
激活anaconda
cd /home/aistudio/miniconda3/bin
source ./activate torch_build
设置cmake选项
export CMAKE_PREFIX_PATH=/home/aistudio/miniconda3/envs/torch_build
禁用nccl
export USE_NCCL=0

　编译

　cd /home/aistudio/torch_build/pytorch-1.2.0

　python setup.py clean

　python setup.py install

　python setup.py bdist_wheel