LSF Version 7.3 - Administering Platform LSF

Administering Platform LSF 423
Advance Reservation
If a non-advance reservation job is submitted while the open reservation is active,
it remains pending until the reservation expires. Any advance reservation jobs that
were suspened and becaame normal jobs when the reservation expired are resumed
first before dispatching the non-advance reservation job submitted while the
reservation was active.
Job scheduling in advance reservations
LSF treats advance reservation like other deadlines, such as dispatch windows or
run windows; LSF does not schedule jobs that are likely to be suspended when a
reservation becomes active. Jobs referencing the reservation are killed when the
reservation expires.
NOTE: If IGNORE_DEADLINE=Y, there is no effect on advance reservations. Jobs are always
prevented from starting if there is a chance that they could encounter an advance reservation.
System reservations
Reservations can also be created for system maintenance. If a system reservation is
active, no other jobs can use the reserved hosts, and LSF does not dispatch jobs to
the specified hosts while the reservation is active.