How to Manage my GPU Hours One thing you can do to manage your time is to only switch to GPU mode when you are training the network. Lots of the steps (pre-processing, etc.) can be run and debugged in CPU mode with unlimited time before saving and switching on GPU mode to train the model. If you have exhausted your GPU hours, please submit a request via this form and select Additional GPU Hours as the Reason for Contact under Classroom, Resources & Content and our team would be happy to assist you!