If LSF_EVENT_RECEIVER is defined, a function called
ls_postevent() allows specific daemon operations to generate LSF events. This function then calls the LSF event program and passes the following arguments:
The event receiver (LSF_EVENT_RECEIVER in lsf.conf)
The cluster name
The LSF event number (LSF events list or LSF_EVENT_XXXX macros in lsf.h)
The event argument (for events that take an argument)