PBS Important Commands & Attributes 2

How To Hold And Release Job in PBS
#qsig -s suspend command to suspend a job so that it won’t run. If you suspend a job, and then release it using the
#qsig -s resume command,
HOW TO HOLD THE PARTICULAR JOB.
For Example 54.
1)qstat -a 54 (list all the jobs id 54)
2)qhold 54 (hold the job 54)
3)qstat -a 54 (check the status)
4)qrls -h u 54 (release the job id 54)
5)qstat -a 54 (check the Status)

PBS Resource Management Useful Tips
1)qsub -l select=4:ncpus=1:mem=4gb -l place=free (Take the resource anywhere PLACE).
2)qsub -l select=1:ncpus=2:mem=50gb:host=zooland(Request job on specified NODE).
3)qsub -l select=2:ncpus=3:mem=6gb -l place=scatter (Request resource on different NODE).
4)qsub -l select=1:ncpus=1:mem=25gb -l place=pack:excl (Request a small number of CPUs but a large amount of memory, exclu-
sively)

User’s PBS Environment
User must be able to transfer files between hosts (e.g. via rcp or scp)
should add entry /usr/bin/scp in /etc/pbs.conf

PBS Error & Solution node down: communication closed

1)node down: communication closed #pbsnodes -a node1 Mom = node1.hcl.com Port = 15002 pbs_version = PBSPro_12.0.1.130184 ntype = PBS state = state-unknown,down pcpus = 2 resources_available.host = node1 resources_available.ncpus = 2 resources_available.vnode = node1 resources_assigned.accelerator_memory = 0kb resources_assigned.mem = 0kb resources_assigned.naccelerators = 0 resources_assigned.ncpus = 0 resources_assigned.netwins = 0 resources_assigned.vmem = 0kb comment = node down: communication closed resv_enable = True sharing = default_shared license = l master

PBS Important Commands & Attributes

1)Get the Details About the Server Attributes. # qstat -Bf Server: master server_state = Active server_host = master.hcl.com scheduling = True total_jobs = 0 state_count = Transit:0 Queued:0 Held:0 Waiting:0 Running:0 Exiting:0 Begun :0 default_queue = workq log_events = 511 mail_from = adm query_other_jobs = True resources_default.ncpus = 1 default_chunk.ncpus = 1 resources_assigned.mpiprocs = 0 resources_assigned.ncpus = 0 resources_assigned.nodect = 0 scheduler_iteration = 600 FLicenses = 0

Pbs Job Scheduler – Importants Commands1

PBS GUI Window

COMMAND	PURPOSE
#xpbs	PBS Graphical User Interface.
#xpbsmon	PBS Graphical Monitoring Tool.

Qstat Command Special Option.

#qstat	Get the Detail Information about Server, Job ,Queue
#qstat -B	Show Server Status
#qstat -Bf	Show detail Information about Server Status
#qstat -Q	List all the Queue
#qstat -Qf	List Detail Information about Queue.
#qstat -f <JOB-ID>	Show Detail Information about job.

qstat  Some Special New Option
-T Estimate Job starting time (When the job will start if it is Queue).
-p How much percentage job is completed.
-n Get List of nodes allocated to the job number(#qstat -n JOBID).