The bebopd is typically started from the user-env script with options like these:
bebopd -d -PBSupdate -PBSinteractive 32
This command starts the bebopd as a background process. It runs in PBSupdate mode, meaning it will allocate to PBS jobs only the number of nodes they have been allocated by the PBS scheduler. In addition the bebopd will notify the PBS server whenever there is a change in the total number of active compute nodes. The bebopd will leave 32 nodes out of that total, and will permit non-PBS jobs to use up to 32 nodes at a time.