After adding GPGPU node to PBS Professional, you have to make sure, it is in the right queue first

qmgr -c "set node gpu-node resources_available.Qlist = gpu_v100"

Locate the cgroups.json2 script in the directory you have placed in. Check by doing the following

ll cgroups.json2

If there, edit the file.

vim cgroups.json2

Find the place where the “run_only_on_hosts” and add the node

"run_only_on_hosts" : [ "gpu-node1", "gpu-node2", "gpu-node3", "gpu-node4],
        "cgroup":
......
......
......

Use the qmgr to import the file

qmgr -c "import hook cgroups application/x-config default cgroups.json2"

Check that the PBS has detected the node correctly

pbsnodes -aSj |grep gpu-node1