|Stable release||8.0 / January 2011|
|Operating system||Unix, Linux, Windows|
Load Sharing Facility (or simply LSF) is a commercial computer software, job scheduler sold by Platform Computing. It can be used to execute batch jobs on networked Unix and Windows systems on many different architectures.
In 2007, Platform released Platform Lava, which is a simplified version of LSF, licensed under GNU General Public License v2. LSF was based on the Utopia research project at the University of Toronto.
LSF Extensions and integrations 
LSF Extensions includes some major extensions:
- The Distributed Resource Management Application API handles job management in a range of distributed resource management systems.
- HPC Profile Basic
- This describes how JSDL, Basic Execution Service (BES) and existing web services security mechanisms can be used interoperable to address batch job scheduling use case.
- LSF Perl API
- This comprises two modules, Base and Batch, allowing Platform's LSF APIs to be called by Perl.
- Base module allows Perl applications to link the Load Information Manager (LIM) and Remote Execution Server (RES) daemons for LSF services e.g. retrieving system configuration and dynamic load information for distributed clusters hosts, task placement advice via LIM, and other related functions, thereby improving application performance and resources accessibility.
- Batch module allows Perl applications to retrieve information as well as the submission of information about the hosts, queues, users, jobs and configuration of the batch system.
- SAGA (Simple API for Grid Applications)
- The SAGA C++ Reference Implementation provides an LSF plug-in (adaptor) for its standardized job submission, control and monitoring API. The API is available for C++ and Python.
- Python LSF wrappers
- LSF's API written in C can be easily accessed using Python. Several implementations of LSF Python APIs exist.
- Michael R. Ault, Mike Ault, Madhu Tumma, and Ranko Mosic (2004). Oracle 10g Grid & Real Application Clusters. Rampant TechPress. p. 24. ISBN 0-9744355-4-6. More than one of
- Goering, Richard (March 8, 1999). "Load sharing brings kudos". EE Times Online. Retrieved 2007-11-12. "LSF ... enables load sharing by distributing jobs to available CPUs in heterogeneous networks ... but don't tell them that; they'll just want to raise their prices"
- Platform Lava
- "Utopia: A Load Sharing Facility for Large, Heterogeneous Distributed Computer Systems". John Wiley & Sons. Retrieved 2007-12-29.
- IBM Closes on Acquisition of Platform Computing
- pylsf on GitHub
Further reading 
- Robert Marcus (2002). Great Global Grid. Trafford Publishing. pp. 258–259. ISBN 1-55369-884-3. More than one of
- Grabowski, Tomasz (December 5, 2001). "Platform LSF SetUID Executables Vulnerability". Juniper Networks. Retrieved 2007-11-12.
- Ahmar Abbas (2004). Grid Computing. Charles River Media. pp. 110–117. ISBN 1-58450-276-2. More than one of