In addition to the “Utilization” statistics, Open XDMoD includes a “Node Utilization” statistic. This statistic is disabled by default because it is not appropriate for all resource configurations. Specifically, if your resource allows node sharing, this statistic will not be accurate. All nodes are assumed to be exclusive when this statistic is calculated.

To enable the statistic add an object to the statistics array for the Jobs realm in datawarehouse.json:

[
    {
        "realm": "Jobs",
        ...
        "statistics": [
            ...
            {
                "name": "node_utilization",
                "class": "NodeUtilizationStatistic"
            }
        ]
    }
]

After that just reload the portal and the Node Utilization statistic will appear in the list of Job statistics.