OpenSM provides an implementation for an InfiniBand Subnet Manager and Administrator. Such a software entity is required to run for in order to initialize the InfiniBand hardware (at least one per each InfiniBand subnet). Run the SlackBild script with the environment variable METIS set to "YES" to enable metis support for nue routing: env METIS=YES ./opensm.SlackBuild The optional dependency "metis" can be installed from either the "metis" or the "suitesparse" package, both of which are available on SlackBuilds.org.