Platform LSF Administration Guide Version 6.2

Welcome
Administering Platform LSF
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◆ Predefined ptile value with optional multiple ptile values, per host type or host
model. For example:
span[ptile='!',HP:8,SGI:8,LINUX:2] same[type]
The job requests 8 processors on a host of type HP or SGI, and 2 processors on a
host of type LINUX, and the predefined maximum job slot limit in
lsb.hosts
(MXJ) for other host types.
See Chapter 15, “Specifying Resource Requirements” for more information.
Resource
requirement
specification for
advance
reservation
You no longer need to specify a host list manually for your advance reservations. Specify
a resource requirement string with the
-R option of brsvadd instead of or in addition
to a list of hosts. This makes advance reservation specification more flexible by reserving
host slots based on your specific resource requirements. Only hosts that satisfy the
resource requirement expression are reserved.
See Chapter 20, “Advance Reservation” for more information.
Administration and diagnosis
Scheduler
dynamic debug
Enables dynamic debugging of the LSF scheduler daemon (mbschd) without
reconfiguring the cluster. Administrators no longer need to run
badmin mbdrestart
to debug the LSF scheduler:
badmin schddebug [-c class_name] [-l debug_level] [-f
logfile_name] [-o]
badmin schdtime [-l timing_level] [-f logfile_name] [-o]
See Chapter 44, “Troubleshooting and Error Messages” for more information.
Administrator
action messages
Improves communication of LSF status to users. Users know the reason for the
administrator actions, and administrators can easily communicate actions to users.
Administrators can attach a message to
mbatchd restart, and host and queue
operations:
◆ Use the -C option of badmin mbdrestart to log an administrator comment in
lsb.events. For example,
% badmin mbdrestart -C "Configuration change"
The comment text Configuration change is recorded in lsb.events.
◆ Use the -C option of badmin hclose and badmin hopen to log an
administrator comment in
lsb.events. For example,
% badmin hclose -C "Weekly backup" hostB
The comment text Weekly backup is recorded in lsb.events. If you close or
open a host group, each host group member displays the same comment string.
◆ Use the -C option of badmin queue commands qclose, qopen, qact, and
qinact to log an administrator comment in lsb.events. For example,
% badmin qclose -C "change configuration" normal
The comment text change configuration is recorded in lsb.events.
To see administrator comments, users run
badmin hist, badmin mbdhist,
badmin hhist, or badmin qhist.