Software
The Open Science Grid, through the Software Tools Group (STG), provides and supports a reference set of software called the “OSG Software Stack” for download and use by administrators and users of the OSG. The STG oversees the development and delivery of all software tools and utilities owned or distributed by the OSG, including managing OSG's interactions with all of its software providers.
The OSG software stack relies on the Virtual Data Toolkit (VDT) middleware, which is itself a packaging and distribution based on the NSF Middleware Institute (NMI) releases of Condor, Globus and other standard Grid middleware.
The collaborative workspace (TWiki) pages provide detailed instructions on how to prepare a facility and/or resource and how to download and configure the OSG Software Stack in order to provide or access resources on the OSG.
A production release of the OSG Software Stack comes only after validation of the proposed software on the Integration Grid, and is based on released versions of the VDT.
Middleware release process in OSG:
Supported by the National Science Foundation and the U.S. Department of Energy's Office of Science