# Scaling data for ACCESS-CM2 **URL:** \ **Category:** Coupled Model\ **Tags:** python, help, scaling, optimisation\ **Created:** [10 February 2025 04:41 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141 "2025-02-10T04:41:56Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Fraser](https://avatars.discourse-cdn.com/v4/letter/f/6de8d8/32.png) [@Fraser](https://forum.access-hive.org.au/u/Fraser)\ **Post date:** [10 February 2025 04:41 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/1 "2025-02-10T04:41:56Z")
Hi, Is there scaling data for ACCESS-CM2 available somewhere? Also, is there a standard practice for running the model to test scaling - I am interested in doing this for a N48 version of the model to see how it compares. Thanks, Fraser ---
**Author:** ![micael](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/micael/32/93_2.png) [@micael](https://forum.access-hive.org.au/u/micael)\ **Post date:** [13 February 2025 01:28 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/2 "2025-02-13T01:28:34Z")
Hi @Fraser, The software transformation team here at ACCESS-NRI is planning on doing scaling tests for all the officially supported models. Unfortunately I can’t give you an exact timeline for this. In any case, @Aidan mentioned that @Scott might have such data for CM2, so might be worth getting in touch with him about it. Cheers, Micael ---
**Author:** ![Scott](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/scott/32/37_2.png) [@Scott](https://forum.access-hive.org.au/u/Scott)\ **Post date:** [13 February 2025 01:42 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/3 "2025-02-13T01:42:16Z")
It’s been years since I looked at CM2, there are some basic notes on the old CLEX wiki at [ACCESS-CM 2.0 - climate-cms wikis.unsw.edu.au](http://climate-cms.wikis.unsw.edu.au/ACCESS-CM_2.0) and [ACCESS-CM 2 N48 - climate-cms wikis.unsw.edu.au](http://climate-cms.wikis.unsw.edu.au/ACCESS-CM_2_N48). There’s a linked PDF on the first page with some scaling info. ---
**Author:** ![Aidan](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/aidan/32/42_2.png) [@Aidan](https://forum.access-hive.org.au/u/Aidan)\ **Post date:** [13 February 2025 03:01 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/4 "2025-02-13T03:01:56Z")
> [@Scott](#): > > It’s been years since I looked at CM2 Luckily it doesn’t change very much! 🙂 ---
**Author:** ![paulleopardi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/paulleopardi/32/92_2.png) [@paulleopardi](https://forum.access-hive.org.au/u/paulleopardi)\ **Post date:** [18 February 2025 00:56 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/5 "2025-02-18T00:56:21Z")
When I was at NCI, I began writing an [ACCESS-CM2 Performance Report](https://docs.google.com/document/d/1WeoszJhQW9Pi9PKGtAngjP1OMrQ44CuijTnoxMJkShI/edit?usp=sharing). Unfortunately I never finished the report, but the data that it does contain may be useful to you. I also produced [a presentation that contains some more data on ACCESS-CM2 performance](https://drive.google.com/file/d/115E3YrBkXFLWpTbc9KaT5WKRcrpYkPV_/view?usp=sharing). I also reported on [coupling and MPI in ACCESS-CM2](https://docs.google.com/document/d/1b2b9Sj6aCQDBhDZhCOJVrvXsIn_J7L00rA1o-3arjOA/edit?usp=sharing). ---
**Author:** ![paulleopardi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/paulleopardi/32/92_2.png) [@paulleopardi](https://forum.access-hive.org.au/u/paulleopardi)\ **Post date:** [18 February 2025 00:56 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/6 "2025-02-18T00:56:31Z")
Assigned @paulleopardi on 18 February 2025 00:56 UTC ---
**Author:** ![Fraser](https://avatars.discourse-cdn.com/v4/letter/f/6de8d8/32.png) [@Fraser](https://forum.access-hive.org.au/u/Fraser)\ **Post date:** [25 February 2025 00:56 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/7 "2025-02-25T00:56:59Z")
Thanks. That’s all very helpful ---
**Author:** ![paulleopardi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/paulleopardi/32/92_2.png) [@paulleopardi](https://forum.access-hive.org.au/u/paulleopardi)\ **Post date:** [6 March 2025 02:55 UTC](https://forum.access-hive.org.au/t/scaling-data-for-access-cm2/4141/8 "2025-03-06T02:55:06Z")
Closed on 6 March 2025 02:55 UTC