mpirun xterm -e gdb
mpirun -np 2 -tag-output -output-filename .result -x CUDA_VISIBLE_DEVICES=2,3 -mca pml ob1 -mca btl ^openib -mca btl_tcp_if_include ib0 -x NCCL_MIN_NCHANNELS=8 -x NCCL_GRAPH_FILE=/tmp/gigabyte_graph.xml xterm -e gdb ./main_test
https://blog.csdn.net/yszheda/article/details/26286885
docker中进行gdb
因为ptrace被Docker默认禁止的问题。考虑到应用分析的需要，可以有以下几种方法解决：
1、关闭seccomp
docker run --security-opt seccomp=unconfined
2、采用超级权限模式
docker run --privileged
3、仅开放ptrace限制
docker run --cap-add sys_ptrace
gdb调python:
# https://wiki.python.org/moin/DebuggingWithGdb
sudo apt-get install gdb python3.7-dbg
# https://blog.csdn.net/tanyjin/article/details/77997785
gdb -ex r --args python test.py
docker内X11
- docker命令
docker run -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix
- 在docker内xclock发现
wrong authorisation protocol attempted
则把宿主机上/home/$USER/.Xauthority拷贝到docker内的/root/下面
