Milgram Operating System Upgrade
Milgram's previous operating system, Red Hat (RHEL) 7, will be officially end-of-life in 2024 and will no longer be supported with security patches by the developer. Therefore Milgram has been upgraded to RHEL 8 during the February maintenance window, February 6-8, 2024. This provides a number of key benefits to Milgram:
- continued security patches and support beyond 2024
- updated system libraries to better support modern software
- improved node management system to facilitate the growing number of nodes on Milgram
Common Errors
Below are common errors encountered when moving workflows to
Python not found
Under RHEL8, we have only installed Python 3, which must be executed using python3 (not python).
As always, if you need additional packages, we strongly recommend setting up your own conda environment.
In addition, Python 2.7 is no longer support and therefore not installed by default. To use Python 2.7, we request you setup a conda environment.
Missing System Libraries
Some of the existing applications may depend on libraries that are no longer installed in the operating system. If you run into these errors please email hpc@yale.edu and include which application/version you are using along with the full error message. We will investigate these on a case-by-case basis and work to get the issue resolved.
Report Issues
If you continue to have or discover new issues with your workflow, feel free to contact us for assistance. Please include the working directory, the commands that were run, the software modules used, and any more information needed to reproduce the issue.