Administering Platform LSF - SAS

Chapter 35
Advance Reservation
Using Advance Reservation
Advance reservation commands
brsvadd
brsvdel
brsvs
Use the following commands to work with advance reservations:
Add a reservation
Delete a reservation
View reservations
Adding and removing reservations
brsvadd
command
By default, only LSF administrators or root can add or delete advance
reservations.
Use brsvadd to create new advance reservations. You must specify the
following for the reservation:
◆ Number of processors to reserve
This number should less than or equal to the actual number of CPUs for
the hosts defined in the reservation.
◆ Hosts for the reservation
◆ Owners of the reservation
◆ Time period for the reservation: Either:
❖ Begin time and end time for a one-time reservation
OR
❖ Time window for a recurring reservation
The brsvadd command returns a reservation ID that you use when you submit
a job that uses the reserved hosts. Any single user or user group can have a
maximum of 100 reservation IDs.
Specifying hosts for the reservation
Use one or both of the following brsvadd options to specify hosts for which
processors are reserved:
◆ The -m option lists the hosts needed for the reservation
The hosts listed the -m option can be local to the cluster or hosts leased
from remote clusters. At job submission, LSF considers the hosts in the
specified order.
If you also specify a resource requirement string with the -R option, -m is
optional.
◆ The -R option selects hosts for the reservation according to a resource
requirements string
Only hosts that satisfy the resource requirement expression are reserved.
-R accepts any valid resource requirement string, but only the select string
takes effect.
If you also specify a host list with the -m option, -R is optional.
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