This document details resources available for researchers at the CTC. The categories of machines are those you can log into, those available through the batch system, and database machines. Some machines are available to all CTC researchers, while others have restricted access.

• Compile programs
• Create and edit files
• Establish input data sets
• Submit and monitor jobs
• Check resulting data from batch runs

• Provide exclusive access for batch jobs started by the Velocity Scheduler (vsched)
• Provide exclusive access for interactive jobs reserved through vsched

• Each set of nodes has restrictions on its use; see the Computing Usage Policy for details on using these resources

• All machine names are in the tc.cornell.edu domain (i.e. vii0065 = vii0065.tc.cornell.edu)
• **Machines available via special access only
• A cluster is a set of machines forming a specific computing resource
• The terms "node" and "machine" are used interchangeably