Note: This web site is only kept up to date for OSG Software 1.2 (VDT 2.0.0). If you are looking for information for the most recent release, the RPM-based OSG Software 3.0, please see the OSG documentation web site

VDT Software Distribution

What Is the VDT?

The VDT software distribution is an ensemble of distributed computing software that can be installed and configured easily. In our experience, installing distributed computing software from scratch is challenging and time consuming. The goal of the VDT is to make it as easy as possible for users to deploy, maintain, and use distributed computing software. Ideally, you type a single command and you can immediately access distributed resources or provide your resources to others. In reality, it is a bit more work than that, but not much.

Who Makes the VDT?


The VDT is a product of the Open Science Grid (OSG), which uses the VDT as its software distribution. OSG, and therefore the VDT, are funded by the National Science Foundation and the Department of Energy.

Before OSG was funded, the VDT was a product of the GriPhyN, iVDGL, and PPDG collaborations.

Even if you are not a member of the Open Science Grid, you are welcome to install and use the VDT software.

We Are Hiring!

We are hiring! Check out our open position.

What Components Are in the VDT?

The VDT contains a wide variety of distributed computing software as well as the software that it depends on. For example, the VDT includes common distributed computing software like HTCondor-G ® and Globus ®, and VOMS, and much more. But it also provides supporting software like Apache, Tomcat, and MySQL. There are also many other software components that help run provide computing resources, like software to update CA certificate revocation lists (fetch-crl), software to assist with local authorization policies (GUMS) accounting software, and much more.

Here is a complete list of what is included in VDT 2.0.0, our latest stable release of the VDT.

More information…

Where Can I Learn More?

We have extensive documentation on all released versions of the VDT.

More information about VDT 2.0.0, the current stable release of the VDT.