Can you point me at what particular tcp/udp ports hydra and smpd services use to communicate over the network ? I tried to make an exception for mpiexec utility and hydra service in windows firewall but it still doesn't work for me.
Thanks in advance.
I've already found a solution of this problem. The main reason why hydra and smpd services failed to communicate over the network is that I should have add an exception also to my router firewall not just windows firewall.
Normally smpd and hydra services use multiple ports to communicate over the network. To provide a network communication you have to add an exception to firewall rules on each node (hosts) in your computation cluster.