This is an update on the planned upgrade of the operating system and applications software stack on Gordon. The upgrade has be rescheduled to start at 9AM (PT) on 08/19/2013. The upgrade process for the compute, vSMP, and I/O nodes is expected to take two days. Please note that this upgrade will not impact user data on the parallel Lustre (Data Oasis) and the NFS filesystems. Compilers and MPI distributions will be upgraded as part of this process, so users will need to recompile applications after the upgrade is complete. SDSC staff will recompile/reinstall commercial packages, numerical libraries, and the currently available applications with the new compilers/MPI distributions. We will make an alternate login node available with the new software stack prior to the upgrade date so users can compile their applications in advance.
The update was originally planned to start on Monday, June 24,2013 and has been delayed twice due to scheduling and staff availability conflicts. We are reasonably certain that this new date will be maintained, and the outage will take place between 8/19 and 8/21.
An alternate login node will be setup, with the new software stack, in advance of the upgrade so users can compile their applications prior to the rollout. We will provide detailed information on the timeline, upgrade, and alternate login node as the start date approaches. Please email the XSEDE Help Desk with comments and questions.