git clone https://github.com/NVIDIA/nccl.git
cd nccl
ls
make
cp /home/nccl/build/include/nccl.h /usr/local/include/
cd ..
cd build
cd lib
cp /home/nccl/build/lib/* /usr/local/lib/
cp /home/nccl/build/lib/* /usr/local/lib64/
cp /home/nccl/build/lib/* /usr/lib/
cp /home/nccl/build/lib/* /usr/lib64/