Find batch system status using the bhosts and bqueues commands

Use the bhosts command to see whether the LSF batch workload system is running properly. The bqueues command displays the status of available queues and their configuration parameters.

To use LSF batch commands, the cluster must be up and running. See Starting your cluster for information about starting LSF daemons.

bhosts command

The bhosts command displays the status of LSF batch server hosts in the cluster, and other details about the batch hosts:
  • Maximum number of job slots that are allowed by a single user
  • Total number of jobs in the system, running jobs, jobs that are suspended by users, and jobs that are suspended by the system
  • Total number of reserved job slots
Normal status ok for all hosts in your cluster. 
% bhosts
HOST_NAME          STATUS       JL/U    MAX  NJOBS    RUN  SSUSP  USUSP    RSV 
hosta              ok              -      -      0      0      0      0      0
hostb              ok              -      -      0      0      0      0      0
hostc              ok              -      -      0      0      0      0      0
hostd              ok              -      -      0      0      0      0      0
If you see the following message when you start or reconfigure LSF, wait a few seconds and try the bhosts command again to give the mbatchd daemon time to initialize.
batch system daemon not responding ... still trying

If the problem persists, see Solving common LSF problems for help.

bqueues command

LSF queues organize jobs with different priorities and different scheduling policies.

The bqueues command displays the status of available queues and their configuration parameters. For a queue to accept and dispatch jobs, the status must be Open:Active. 

% bqueues
QUEUE_NAME      PRIO STATUS          MAX JL/U JL/P JL/H NJOBS  PEND   RUN  SUSP 
owners           43   Open:Active      -    -    -    -     0     0     0     0
priority         43   Open:Active      -    -    -    -     0     0     0     0
night            40    Open:Inact      -    -    -    -     0     0     0     0
chkpnt_rerun_qu  40   Open:Active      -    -    -    -     0     0     0     0
short            35   Open:Active      -    -    -    -     0     0     0     0
license          33   Open:Active      -    -    -    -     0     0     0     0
normal           30   Open:Active      -    -    -    -     0     0     0     0
idle             20   Open:Active      -    -    -    -     0     0     0     0
To see more detailed queue information, use the bqueues -l command: 
% bqueues -l normal

QUEUE: normal
  -- For normal low priority jobs, running only if hosts are lightly loaded.  This is the default queue.

PARAMETERS/STATISTICS
PRIO NICE STATUS          MAX JL/U JL/P JL/H NJOBS  PEND   RUN SSUSP USUSP  RSV
 30   20  Open:Active       -    -    -    -     0     0     0     0     0    0
Interval for a host to accept two jobs is 0 seconds

SCHEDULING PARAMETERS
           r15s   r1m  r15m   ut      pg    io   ls    it    tmp    swp    mem
 loadSched   -     -     -     -       -     -    -     -     -      -      -
 loadStop    -     -     -     -       -     -    -     -     -      -      -

SCHEDULING POLICIES:  FAIRSHARE  NO_INTERACTIVE
USER_SHARES:  [default, 1]

USERS: all
HOSTS:  all

The bqueues -l command shows the following kinds of information about the queue:

  • What kinds of jobs are meant to run on the queue
  • Resource usage limits
  • Hosts and users able to use the queue
  • Scheduling threshold values:
    • loadSched is the threshold for LSF to stop dispatching jobs automatically
    • loadStop is the threshold for LSF to suspend a job automatically

Other useful commands

  • The bparams command displays information about the LSF batch system configuration parameters.
  • The bhist command displays historical information about jobs.