Platform LSF Administration Guide Version 6.2

Running Remote Tasks
Administering Platform LSF
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Running Remote Tasks
lsrun is a non-batch utility to run tasks on a remote host. lsgrun is a non-batch utility
to run the same task on many hosts, in sequence one after the other, or in parallel.
The default for
lsrun is to run the job on the host with the least CPU load (represented
by the lowest normalized CPU run queue length) and the most available memory.
Command-line arguments can be used to select other resource requirements or to
specify the execution host.
To avoid typing in the
lsrun command every time you want to execute a remote job,
you can also use a shell alias or script to run your job.
For a complete description of
lsrun and lsgrun options, see the lsrun(1) and
lsgrun(1) man pages.
In this section
◆ “Running a task on the best available host” on page 530
◆ “Running a task on a host with specific resources” on page 530
◆ “Running a task on a specific host” on page 531
◆ “Running a task by using a pseudo-terminal” on page 531
◆ “Running the same task on many hosts in sequence” on page 531
◆ “Running parallel tasks” on page 531
◆ “Running tasks on hosts specified by a file” on page 532
Running a task on the best available host
To run mytask on the best available host, enter:
% lsrun mytask
LSF automatically selects a host of the same type as the local host, if one is available. By
default the host with the lowest CPU and memory load is selected.
Running a task on a host with specific resources
If you want to run mytask on a host that meets specific resource requirements, you can
specify the resource requirements using the
-R res_req option of lsrun.
For example:
% lsrun -R 'cserver && swp>100' mytask
In this example mytask must be run on a host that has the resource cserver and at
least 100 MB of virtual memory available.
You can also configure LSF to store the resource requirements of specific tasks. If you
configure LSF with the resource requirements of your task, you do not need to specify
the
-R res_req option of lsrun on the command-line. If you do specify resource
requirements on the command line, they override the configured resource requirements.
See the Platform LSF Reference for information about configuring resource
requirements in the
lsf.task file.