# UMUI after archer2 **URL:** \ **Category:** Uncategorized\ **Tags:** ARCHER2\ **Created:** [14 September 2026 12:08 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173 "2026-09-14T12:08:37Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![JonathanGregory](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/jonathangregory/32/639_2.png) [@JonathanGregory](https://cms-helpdesk.ncas.ac.uk/u/JonathanGregory)\ **Post date:** [14 September 2026 12:08 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173/1 "2026-09-14T12:08:37Z")
Dear CMS I’m sure you’ve thought about this, but I can’t find the answer with Google. Where will the UMUI go after archer2 is closed, when I suppose puma will also be closed? Specifically, I’m interested mostly in UM 4.5, for HadCM3, but I have a few HadGEM2-ES experiments in it as well. Thanks Jonathan ---
**Author:** ![jonnyhtw](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/jonnyhtw/32/548_2.png) [@jonnyhtw](https://cms-helpdesk.ncas.ac.uk/u/jonnyhtw)\ **Post date:** [14 September 2026 12:57 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173/2 "2026-09-14T12:57:04Z")
Hi Jonathan PUMA2, and hence the UMUI, will be available after ARCHER2 closes because it will be connected to Cirrus, which will be the platform that takes over at least for now (see links). There’s some info on the future UK HPC ‘ecosystem’ linked below too. - [Cirrus | EPCC](https://www.epcc.ed.ac.uk/hpc-services/cirrus) - [UKRI National Compute Ecosystem Town Hall Meeting Report June 2026 | Zenodo](https://zenodo.org/records/21159429) ---
**Author:** ![RosalynHatcher](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/rosalynhatcher/32/11_2.png) [@RosalynHatcher](https://cms-helpdesk.ncas.ac.uk/u/RosalynHatcher)\ **Post date:** [20 September 2026 18:38 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173/3 "2026-09-20T18:38:56Z")
4 posts were split to a new topic: [Unified Model on Cirrus](https://cms-helpdesk.ncas.ac.uk/t/unified-model-on-cirrus/2179) ---
**Author:** ![JonathanGregory](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/jonathangregory/32/639_2.png) [@JonathanGregory](https://cms-helpdesk.ncas.ac.uk/u/JonathanGregory)\ **Post date:** [18 September 2026 17:02 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173/7 "2026-09-18T17:02:20Z")
I’ve just been told by a colleague that the CIRRUS plans do not include the UMUI for vn4.5. As I said in my initial post, it’s vn4.5 I’m specifically interested in, along with others, because we use it for HadCM3 and FAMOUS. Please could you comment on this? ---
**Author:** ![RosalynHatcher](https://dub1.discourse-cdn.com/flex013/user_avatar/cms-helpdesk.ncas.ac.uk/rosalynhatcher/32/11_2.png) [@RosalynHatcher](https://cms-helpdesk.ncas.ac.uk/u/RosalynHatcher)\ **Post date:** [20 September 2026 18:34 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173/8 "2026-09-20T18:34:58Z")
Hi Jonathan, I don’t know who you’ve been talking to, but the UMUI will remain accessible on PUMA2 when ARCHER2 ends. The long-term future of the UMUI, how and where it is hosted, however, is unclear. In the new compute landscape, it is unlikely that future PUMAs can or will be the appropriate place for it. Regards, Ros ---
**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/cms_support/original/1X/1fd2411499ffcbc299fe756cd5cdf26e44956558.png) [@system](https://cms-helpdesk.ncas.ac.uk/u/system)\ **Post date:** [20 October 2026 18:39 UTC](https://cms-helpdesk.ncas.ac.uk/t/umui-after-archer2/2173/9 "2026-10-20T18:39:00Z")
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