To receive email notifications when a new release is announced, please watch this topic.
ACCESS-rAM3
Release: 2.1
This an ACCESS-NRI supported release of ACCESS-rAM3, an implementation of the UK Met Office (UKMO) regional nesting suite. More information about the model is available on the ACCESS Hive Docs.
This is a minor release that guarantees bitwise reproducibility of runs. It does not contain any scientific changes to the configurations.
Note that the configurations have been transferred to Github, and during the transition period, we will be keeping the MOSRS and Github branches in sync.
What’s new
Changed to the global_sum_method from 3 to 2. This stops the model from relying on MPI sum reduce, which is not guaranteed to be bitwise reproducible according to the MPI specifications.
Credits
Thanks to @Leena for identifying the issue, and @MartinDix for determining the fix.
Thanks to @cbengel for updating the configurations on MOSRS.
Support
Replies to this topic are disabled.
If you have specific questions about this release please make a topic on the ACCESS-Hive Forum by following the guidelines for requesting help
Resources
- ACCESS-rAM3 Model Overview
- How to run ACCESS-rAM3
- ACCESS-rAM3 model deployment repository
- RMED TRAC Ticket #665 to coordinate rAM3 changes
- UM support for native netCDF output [disabled in this release]