Hi all, I'm trying to run a code on 2 machines that has at least 2 network interfaces in it. So I have them as described below:
compute01 compute02 ens3 192.168.100.104/24 10.0.0.227/24 ens8 10.0.0.228/24 172.21.1.128/24 ens9 172.21.1.155/24 --- Issue is. When I execute `mpirun -n 2 -host compute01,compute02 hostname` on them what I get is the correct output after a very long delay.. What I've read so far is that OpenMPI performs a greedy algorithm on each interface that timeouts if it doesn't find the desired IP. Then I saw here (https://www.open-mpi.org/faq/?category=tcp#tcp-selection) that I can run commands like: `$ mpirun -n 2 --mca oob_tcp_if_include 10.0.0.0/24 -n 2 -host compute01,compute02 hosname` But this configuration doesn't reach the other host(s). In the end I sometimes I get the same timeout. So is there a way to let it to use the system's default route? Regards, Carlos.
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