Date: 22 Oct 2025
Attendees: @NoahDay, @sofarrell, @Paul.Gregory, @aekiss, @anton, @helen, @micael, @minghangli, @MartinDix, @ezhilsabareesh8
Chair: @cbull
Minutes: @dougiesquire
NCMAS applications
@micael gave overview of the software transformation team’s responsibilities. They will do scaling for models in conjunction with model dev teams. Will maintain repository of notebooks showing scaling studies.
Proposals require cost and scaling. Don’t need scaling for every configuration. In previous years applicants have shared around tables of the cost for each model. Usually this information exists from previous runs people have done.
Can we have a coordinated dissemination of the information to the community?
@micael will share draft of a Forum post on model scaling notebooks tomorrow. @minghangli and @ezhilsabareesh8 will review/give input.
Use normal queue for postprocessing
@dougiesquire will update the configs to use normal queue rather than express for collation and postscript jobs.
Workflow docs meeting for access hive
Chris is meeting @paigem tomorrow to talk access hive workflow docs (e.g. how to run payu, publish an experiment etc) get in touch if you have ideas/want to join.
Cm3 dev team minutes are moving to a more open format
See new announce page and @MartinDix will be posting minutes. ACCESS CM3 technical meeting minutes
Residual sea ice
There is an upstream PR to CICE to zap residual sea ice (non-physical regions of trapped low concentration ice). @anton has done test runs with this on in ACCESS-OM3 see here.
Investigation is still ongoing - see the above linked PR.
Run logs
We should be pushing run logs for experiments we run. Should we have a shared repo, a la ACCESS-ESM1.6?
@cbull will set up a repo in the ACCESS-Community org and will ping those that have run experiments
Compute allocations
@cbull showed what has been used in tm70 so far this quarter.
ACCESS-NRI is planning to ask an additional 5MSU for Q1,2-2026. Storage will remain the same.
CM3 drop in hackathon
Tomorrow at 1pm. Details here.
Updating OM3 initial conditions
@dougiesquire will update initial conditions to include potential temp, conservative temp, practical salt and absolute salt.
This makes it easier to set up the correct initial conditions and restoring for a given model configuration. Also, facilitates evaluation.
@dougiesquire will also look into reconciling the duplicate downloads of WOA23 in ik11 and av17.
New IAF run
@aekiss and @ezhilsabareesh8 probably need to do a few more test runs for bathymetry edits (Bosphorous,…). These will be prototype runs, just to check edits are having desired effect.
@aekiss possibly also worth looking at a few more diagnostics in the existing IAF run.
We want to have a release before doing another long run.
@cbull will open an issue for listing changes we want to make before an IAF release and others can contribute what they would like to see in the new run.
CM3 team will be interested in picking up the released version.