What are LSF commands?

Posted on by Muna Meyer

What are LSF commands?

User commands

Command Description
busers Displays information about users and user groups
lshosts Displays hosts and their static resource information
lsid Displays the current LSF version number, cluster name, and management host name
lsinfo Displays load-sharing configuration information

How do I run a LSF job?

Run LSF jobs

  1. Submit batch jobs with bsub. The bsub command submits jobs to LSF batch scheduling queues.
  2. Display job status with bjobs.
  3. Control job execution with bstop, bresume, and bkill.
  4. Run interactive tasks with lsrun and lsgrun.
  5. Integrate your applications with LSF.

What is LSF in Linux?

LSF stands for LOAD SHARING FACILITY. LSF is based on clusters. A cluster is a group of hosts. The clusters are configured in such a way that LSF uses some of the hosts in the cluster as batch server hosts and some others as client hosts.

How do I check my LSF status?

The lsid command tells you if your LSF environment is set up properly. The lsload command displays the current load levels of the cluster. The badmin command controls and monitors the operation of the LSF batch workload system. Use the bhosts command to see whether the LSF batch workload system is running properly.

What is LSF?

LSF

Acronym Definition
LSF Line Spread Function
LSF Lost Souls Forever
LSF Learning for a Sustainable Future (est. 1991; Canada)
LSF Les Savy Fav (band)

How do you use BSUB?

Submitting a job with a job name (bsub -J) Use bsub -J job_name to submit a job and assign a job name to it. You can later use the job name to identify the job. The job name need not be unique. You can also assign a job name to a job array.

What are BSUB commands?

The bsub command is used to submit a batch script to LSF. It is designed to reject the job at submission time if there are requests or constraints that LSF cannot fulfill as specified.

What is Bjobs in Linux?

bjobs displays output for condensed host groups and compute units. These host groups and compute units are defined by CONDENSE in the HostGroup or ComputeUnit section of lsb. hosts. These groups are displayed as a single entry with the name as defined by GROUP_NAME or NAME in lsb.

How do I set up LSF?

Procedure

  1. Log in to the LSF installation file server as root. If you are not root, see If you install LSF as a non-root user.
  2. Change to the lsf10.1_lsfinstall/ directory.
  3. Edit the ./install.
  4. Run the lsfinstall script command while specifying the install.
  5. Test your cluster by running some basic LSF commands.

What is a LSF farm?

LSF – Load Sharing Facility – is a system to manage (large) programs that cannot be run interactively on a machine as they require too much CPU-time, memory or other system resources. For that reason, those large programs have to be run in batch (batch jobs).

How do I view pending jobs in LSF?

Procedure

  1. Run bjobs -p. Displays information for pending jobs (PEND state) and their reasons. There can be more than one reason why the job is pending.
  2. To get specific host names along with pending reasons, run bjobs -lp.
  3. To view the pending reasons for all users, run bjobs -p -u all.

How do I get a job at BSUB?

Use the bjobs command to see the job ID and other information about your jobs. The status of each LSF job is updated periodically. The job that is named sleep 60 runs for 60 seconds. When the job completes, LSF sends email to report the job completion.

How do I view the output of an LSF batch job?

However, LSF Batch provides the bpeek command for you to look at the output the job has produced so far. By default, bpeek shows the output from the most recently submitted job; you can also select the job by queue or execution host, or specify the job ID or job name on the command line.

What is LSF batch?

LSF Batch is a distributed load-sharing batch system for clusters of UNIX and Windows NT computers. LSF Batch uses LSF’s load information and other services to schedule batch jobs. Because LSF Batch is integrated with other LSF services, batch and interactive jobs have a consistent view of system resources and load levels.

How does preemptive scheduling work in LSF batch?

When the preemptive scheduling policy is used, jobs in preemptive queues may violate the user or host job slot limits. However, LSF Batch ensures that the total number of slots used by running jobs (excluding jobs that are suspended) does not exceed the job slot limits. This is done by suspending lower priority jobs.

When does LSF batch schedule jobs?

When LSF Batch schedules jobs, those in higher priority queues are considered first. Jobs in lower priority queues are only started if all higher priority jobs are waiting for specified resources, hosts, starting times, or other constraints.