The multifactor priority documentation seems to suggest that the normalized
usage is calculated based on the cluster's available CPU time. However, in
practice it seems to be based on the summation of all raw usage. I'm getting
ready to implement fairshare priorities and am wondering which is the case.
The former would be ideal as that way the fairshare values in the output of
sshare won't flip flop based on usage outside of a given account. Of course,
it's always possible something is borked in my testing setup :)
