Portable Batch System

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Portable Batch System (or simply PBS) is a computer software job scheduler that allocates network resources to batch jobs. It can schedule jobs to execute on networked, multi-platform UNIX environments.

[edit] History and versions

PBS was originally developed by MRJ for NASA in the early to mid-1990s. MRJ was taken over by Veridian, which was later taken over by Altair Engineering, which currently distributes PBS Pro commercially.

The following versions of Portable Batch System currently available:

OpenPBS — the unsupported original opensource version
PBS Professional (PBS Pro) — an enterprise-quality professional version maintained and sold commercially by Altair Engineering
TORQUE Resource Manager (Terascale Open-Source Resource and QUEue Manager) — an open source fork of OpenPBS version 2.3.12 maintained by Cluster Resources. TORQUE also incorporates many scalability, fault tolerance, and feature extension patches provided by NCSA, OSC, Sandia, PNNL, University of Buffalo, and other HPC centers along side the enhancements provided by Cluster Resources, Inc.