[galaxy-dev] Set job_working_directory to a cluster compute node /tmp

Hi guys, I have deploy a galaxy on a cluster (so I installed it on a NFS share that it's accessible by all cluster compute nodes). Everything is running fine. Now I am looking for a way such that every job dispatched to a compute node uses that node's local /tmp as working directory. I know galaxy config provides job_working_directory for the similar purpose. My question really is, while all my compute nodes can access the NFS share where galaxy installed, but the galaxy host cannot access each compute node's /tmp. Is there a way that for the galaxy to collect job results back to the data directory? Regards, Derrick