Adding VPL Members

Until now, we have used a person's primary group as the credential to grant them access to specific nodes. If you are in group "int" then you get priviledged access to int nodes, "cenpa" gets the cenpa nodes, etc.

VPL owns 12 nodes. These nodes are superior in memory and CPU speed than the original Athena nodes. They are nodes 33-35 in racks 3,4,5,6. The challenge presented by giving VPL members privileged access to these nodes (but not to other astronomers) is that they are a subset within the "astro" group. MOAB (unlike TORQUE) does not seem to be able to read people's secondary group. Therefore, we have to use a facility within MOAB to single out VPL people as "special" astronomers.

In /opt/moab/moab.cfg there is a line that begins:

ACCOUNTCFG[vpl]    MEMBERULIST=vsm,robinson,gardnerj,richardc,seymour,......

You need to append the userid of the VPL person to this line. Once you do this, they will be able to request privileged access to the VPL nodes. A VPL member's primary group (as given in /etc/passwd) should be "astro", as they also get privileged access to the astro nodes.