Starting April 5, 2018, projects utilizing Sandy Bridge GPU nodes are charged at an SBU rate of 3.64 (twice the current Sandy Bridge rate). To utilize GPU nodes in PBS, specify the queue k40 with model type san_gpu.
For users who may not be familiar with these nodes, you can learn about them in the following Knowledge Base article:
if you have any questions, please contact the Control Room at (800) 331-8737, (650) 604-4444, or support@nas.nasa.gov.