If you are facing this issue “Unable to determine user account for execution;”, it is likely casued by the fact that LSF cluster must be restarted if user authentication is switched from NIS to LDAP.

After user authentication method is switched from NIS to LDAP, all user jobs are pending with the pending reason: “Unable to determine user account for execution”.

If user authentication mode is changed, you have to restart LSF daemons on all LSF hosts for jobs to run successfully. On the LSF master master host do:

# lsadmin reconfig
# badmin mbdrestart
# badmin hrestart all

References:

1. LSF cluster must be restarted if user authentication is switched from NIS to LDAP