https://blog.csdn.net/yanxiangtianji/article/details/55255318
/usr/bin/mpirun --allow-run-as-root --mca plm_rsh_no_tree_spawn 1 --mca btl_tcp_if_include eth0 -x NCCL_SOCKET_IFNAME=eth0 -npernode 128 -hostfile /root/test/hosts /usr/local/bin/ior -f /root/testscript/iorconf-88-randrw-20M-4k-test
原文：https://www.cnblogs.com/jiaoyaxiong/p/13564064.html