openmpi 运行出错 WARNING: Open MPI accepted a TCP connection

我在集群上用openmpi运行程序时，出现警告提示，然后程序会一直卡住，但是简单的例程却可以正常运行，请问是什么原因呢。
WARNING: Open MPI accepted a TCP connection from what appears to be a
another Open MPI process but cannot find a corresponding process
entry for that peer.

昨天遇到这个问题，已解决。
额外增加参数-mca btl_tcp_if_include eno1就OK了
供参考
1 https://blog.csdn.net/pengshuyes/article/details/102906347
2 https://github.com/open-mpi/ompi/issues/6240

看下网络连接，还有是不是有防火墙等的干扰，或者端口被占用。