[Beowulf] building Infiniband 4x cluster questions

[Sabuj Pattanayek]

> Anyway, on an Infiniband network the Subnet Manager assigns new hosts a
> LID (local identifier)
> and keeps track of routing tables between them.
> No SM, no new hosts join the network.

Regardless, make sure you're running opensm on an at least one of the
nodes connected to your IB switch. I didn't have to configure anything
within the manager, just make sure it's running.