Yellowstone to be decommissioned December 31

The Yellowstone supercomputing cluster will be decommissioned on December 31, 2017. The system will be powered down on that date and no longer available to users. The Geyser and Caldera clusters will remain in production until the end of 2018.

Yellowstone’s maintenance contract expires December 20. CISL will continue to operate the system as a courtesy to users but should any hardware components fail before December 31, no effort will be made to repair them.

Please note that it is not necessary to copy or move files to HPSS or to another disk space as a result of Yellowstone’s decommissioning. All files in the GLADE system file spaces—home, scratch, work, and project—are accessible via Cheyenne. Copying or archiving files unnecessarily will waste expensive tapes and valuable disk space while increasing use of your allocation.

Users who have not already done so are strongly encouraged to migrate their work to Cheyenne as soon as possible to avoid unnecessary interruptions. Documentation available to help Cheyenne users make the transition includes this Quick start overview as well as procedures and scripts for running jobs. For help in migrating job scripts or rebuilding executables, please contact cislhelp@ucar.edu.

See our allocations documentation if you do not already have a Cheyenne allocation. University users who want to convert an existing Yellowstone allocation to a Cheyenne allocation should mail that request to cislhelp@ucar.edu.