In case your cluster uses a head node with one or more Intel® Xeon PhiTM coprocessors a couple more step have to be taken in order to collect all information.
First of all execute the clck-collect command using your configuration file and node list.
clck-collect -a -c <your configuration file> -f <your node list>
Then create a second node list containing just the name of the head node, without any additional "role:" tag.
Now you can collect the additional information by executing