We will have a rolling reboot of login and compute nodes of Owens cluster starting from Monday, April 16, 2018.

Users may have been experiencing job failures on Owens cluster since April 16, 2018

Performance Regression of GPU Nodes on Ruby


We currently have performance regression of Ruby's GPU nodes. Some of the GPU nodes on Ruby will remain in a power-saving state even after an application starts using them, resulting in performance reduction in some cases. We currently have a reservation on the GPU nodes so that we can do a rolling reboot on them to get them back into a known-good state.

We have opened a bug report with the vendor about this performance regression and how to monitor for it.