Platform LSF Administration Guide Version 6.2

Cluster Concepts
Administering Platform LSF
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The bsub command stops display of output from the shell until the job completes, and
no mail is sent to you by default. Use
Ctrl-C at any time to terminate the job.
Commands
bsub -ISubmit an interactive job
Interactive task
A command that is not submitted to a batch queue and scheduled by LSF, but is
dispatched immediately. LSF locates the resources needed by the task and chooses the
best host among the candidate hosts that has the required resources and is lightly loaded.
Each command can be a single process, or it can be a group of cooperating processes.
Tasks are run without using the batch processing features of LSF but still with the
advantage of resource requirements and selection of the best host to run the task based
on load.
Commands
lsrunSubmit an interactive task
lsgrunSubmit an interactive task to a group of hosts
See also LSF utilities such as ch, lsacct, lsacctmrg, lslogin, lsplace,
lsload, lsloadadj, lseligible, lsmon, lstcsh
Local task
An application or command that does not make sense to run remotely. For example, the
ls command on UNIX.
Commands
lsltasksView and add tasks
Configuration
lsf.taskConfigure systemwide resource requirements for tasks
lsf.task.clusterConfigure clusterwide resource requirements for tasks
.lsftasksConfigure user-specific tasks
Remote task
An application or command that can be run on another machine in the cluster.
Commands
lsrtasksView and add tasks
Configuration
lsf.taskConfigure systemwide resource requirements for tasks
lsf.task.clusterConfigure clusterwide resource requirements for tasks
.lsftasksConfigure user-specific tasks
Host types and host models
Hosts in LSF are characterized by host type and host model.
The following example has HP hosts. The host type is HPPA. Host models can be
HPN4000, HPJ210, etc.
Host type
The combination of operating system version and host CPU architecture.
Host models
Host type
HPPA
HPJ210HPN4000 HPC3000HPC200