User-based fairshare policies configured at the host level handle resource contention across multiple queues.
You can define a different fairshare policy for every host partition. If multiple queues use the host partition, a user has the same priority across multiple queues.
To run a job on a host that has fairshare, users must have a share assignment (USER_SHARES in the HostPartition section of lsb.hosts). Even cluster administrators cannot submit jobs to a fairshare host if they do not have a share assignment.