I asked our system manager, and he told me that the PBS environmental variables can be used to get these information:
PBS_NODEFILE : File containing list of allocated nodes
PBS_O_WORKDIR: Directory from where job is submitted
PBS_O_QUEUE: Queue job was submitted to
PBS_JOBID: Job ID number
PBS_JOBNAME: The name of the job.
PBS_NP: Number of processes requested
PBS_NUM_PPN: Number of processors per node requested
etc
For example, if I want to get the name of the nodes, I can use
sort $PBS_NODEFILE | uniq
it will return
mike409
mike410
mike411
mike412