The Ohio Supercomputer Center (OSC) is experiencing an email delivery problem with several types of messages from MyOSC. 

Rolling reboot of all clusters, starting from Wednesday morning, April 19, 2017


1:40PM 4/27/2017 Update: Rolling reboots are completed. 

3:10PM 4/18/2017 Update: Rolling reboots on Owens have started to address GPFS errors occured late Friday. 

Rolling reboot of Owens, Oakley, and Ruby clusters is scheduled to start from Wednesday morning, April 19, 2017. Highlights of the rolling reboot activities:

  • Upgrade GPFS client code from 4.2.1-2 to 4.2.2-3 to fix the memory leak in the mmfsd process
  • Update the kernel on Owens to fix a privilege escalation exploit
  • Add a few kernel modules to Owens for GPU/memory transfer enhancements

This rolling reboot won't affect any running jobs, but users may experience longer queue wait time than usual on all systems. We really apologize for any inconvenience this may cause you. Please contact if you have any questions.