Systems News

On Saturday, 1 August 2015, the Defense Research and Engineering Network (DREN) will be conducting required maintenance that will affect HPCMP users. Between the hours of 0900-1500 EDT, there will be brief periods of interruption affecting network traffic. During these interruptions, users may experience the following problems:
  • Kerberos Key Distribution Center (KDC): The primary KDC may be unavailable during the interruptions. This would impact a user's ability to obtain a Kerberos ticket.
  • OpenID: The OpenID server may be unavailable during the interruptions. Users may be temporarily unable to access any site requiring OpenID authentication, including the Portal to the Information Environment (pIE), the HPC Portal (, Advanced Reservations (, and the user dashboard (
  • License Server: The License Server may be unavailable during the interruptions. Jobs running during the outages may encounter problems accessing external licenses. Jobs may fail.
  • Data Transfers: Data transfers running to your local user workstation may fail.
Again, these short interruptions could occur at any point between 0900-1500 EDT. We regret any inconvenience this required maintenance may cause our users. If you have any questions, please contact the HPC Help Desk by phone at 1-877-222-2039 or by email at System statuses can be found at . Information on current and upcoming maintenance periods can be found at