ENFORCE_UG_TREE=Y | N
When ENFORCE_UG_TREE=Y is defined, user groups must form a tree-like structure, with each user group having at most one parent. User group definitions in the UserGroup section of lsb.users will be checked in configuration order, and any user group appearing in GROUP_MEMBER more than once will be ignored after the first occurence.
After adding or changing ENFORCE_UG_TREE in lsb.params, use badmin reconfig to reconfigure your cluster
N (Not defined.)
DEFAULT_USER_GROUP, ENFORCE_ONE_UG_LIMIT, STRICT_UG_CONTROL