Some compute nodes offline, will return this afternoon.

Power work in the data center has taken a handful of compute nodes offline for a few hours. They should be back online early this afternoon. The affected machines are:

• octagon.mcs.anl.gov
• cookie.mcs.anl.gov
• petsc.mcs.anl.gov
• cg.mcs.anl.gov
• gnep.mcs.anl.gov
• octopus.mcs.anl.gov

Sorry for the inconvenience. We didn’t believe these machines would be affected by the work, however we were incorrect.
For a list of alternative machines, see https://wiki.mcs.anl.gov/IT/index.php/General_MCS_Questions#computeservers.