For wide-area nodes, include the site as a feature in the ptop file, so that assign can attempt to spread an experimenter's nodes across sites.
For wide-area nodes, include the site as a feature in the ptop file, so that
assign can attempt to spread an experimenter's nodes across sites.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome