From UC Grid Wiki
There are two types of users:
- Cluster Users
- A Cluster User is a user that has a login id on at least one cluster on the Grid. A Cluster User can submit jobs to any cluster that user can access. Every Cluster User is also a Pool user and can submit jobs to resource pools.
- Pool-Only Users
- A Pool-Only User is given a storage area on the Portal for his/her files and can submit jobs to the resource pools.