# \#PUMA **URL:** https://cms-helpdesk.ncas.ac.uk/tag/puma/8.md [Latest](https://cms-helpdesk.ncas.ac.uk/latest.md) · [Categories](https://cms-helpdesk.ncas.ac.uk/categories.md) · [Tags](https://cms-helpdesk.ncas.ac.uk/tags.md) --- ## [Restarting after puma2 reboot](https://cms-helpdesk.ncas.ac.uk/t/restarting-after-puma2-reboot/2072)
**Author:** [@AnnetteOsprey](https://cms-helpdesk.ncas.ac.uk/u/AnnetteOsprey)\ **Replies:** 0\ **Last updated:** [30 April 2026 12:45 UTC](https://cms-helpdesk.ncas.ac.uk/t/restarting-after-puma2-reboot/2072 "2026-04-30T12:45:14Z")
Puma2 was rebooted today, Thurs 30 April 2026 at 13:20, to apply an urgent security fix. The system is now back up and running. If you were running any Rose/Cylc suites, you will need to do the following: Set up your s… --- ## [Permission denied Error during SAm\_4km\_RA2T\_um\_surf\_ostia step](https://cms-helpdesk.ncas.ac.uk/t/permission-denied-error-during-sam-4km-ra2t-um-surf-ostia-step/2040)
**Author:** [@scottan32](https://cms-helpdesk.ncas.ac.uk/u/scottan32)\ **Replies:** 3\ **Last updated:** [20 March 2026 15:24 UTC](https://cms-helpdesk.ncas.ac.uk/t/permission-denied-error-during-sam-4km-ra2t-um-surf-ostia-step/2040 "2026-03-20T15:24:39Z")
I am running suite u-dx731 on ARCHER2, which is itself a copy of u-ds822, which runs fine on my colleagues’ setup. When I run u-dx731, I get the following error during the SAm\_4km\_RA2T\_um\_surf\_ostia step of the workflow… --- ## [Problem submitting v8.4 GA4 UM-UKCA job to ARCHER2 from PUMA2](https://cms-helpdesk.ncas.ac.uk/t/problem-submitting-v8-4-ga4-um-ukca-job-to-archer2-from-puma2/2004)
**Author:** [@gmann](https://cms-helpdesk.ncas.ac.uk/u/gmann)\ **Replies:** 5\ **Last updated:** [18 February 2026 01:45 UTC](https://cms-helpdesk.ncas.ac.uk/t/problem-submitting-v8-4-ga4-um-ukca-job-to-archer2-from-puma2/2004 "2026-02-18T01:45:07Z")
Dear NCAS CMS helpdesk team, In August 2024 I ran the interactive volcanic aerosol configuration of GA4 UM-UKCA (Dhomse et al., 2020) for the main set of simulations for Hunga Tonga MIP organised by Univ Colorado. Ther… --- ## [Cylc 8 GUI on Puma](https://cms-helpdesk.ncas.ac.uk/t/cylc-8-gui-on-puma/1845)
**Author:** [@douglowe](https://cms-helpdesk.ncas.ac.uk/u/douglowe)\ **Replies:** 1\ **Last updated:** [24 October 2025 16:17 UTC](https://cms-helpdesk.ncas.ac.uk/t/cylc-8-gui-on-puma/1845 "2025-10-24T16:17:24Z")
I note that the GUI for cylc 7 has been replaced with a web-UI for cylc 8, though with no rose-edit replacement (Cylc 8.6 Caveats — Cylc 8.6.0 documentation). To use a web-based UI there are some instructions for port-f… --- ## [UM on ARCHER: No Host Selected](https://cms-helpdesk.ncas.ac.uk/t/um-on-archer-no-host-selected/1830)
**Author:** [@mbrown](https://cms-helpdesk.ncas.ac.uk/u/mbrown)\ **Replies:** 1\ **Last updated:** [10 October 2025 13:37 UTC](https://cms-helpdesk.ncas.ac.uk/t/um-on-archer-no-host-selected/1830 "2025-10-10T13:37:46Z")
Hi NCAS Helpdesk, I’m trying to run the UM on ARCHER (suite u-dt361). I copied it from a suite which was working fine when I last used it, 6 months ago. I’m not sure what I’ve done for it to stop working, but I get the… --- ## [Remote\_setup failing](https://cms-helpdesk.ncas.ac.uk/t/remote-setup-failing/1764)
**Author:** [@SimonTett](https://cms-helpdesk.ncas.ac.uk/u/SimonTett)\ **Replies:** 12\ **Last updated:** [6 August 2025 07:29 UTC](https://cms-helpdesk.ncas.ac.uk/t/remote-setup-failing/1764 "2025-08-06T07:29:51Z")
I am running a cylc 8 suite – u-dr783 and I am getting a failure from remote\_setup. Looking in the workflow log I have a bunch of errors like: 2025-08-01T15:45:42Z WARNING - platform: ln02 - Could not connect to ln02. … --- ## [Suite failing but no obvious error](https://cms-helpdesk.ncas.ac.uk/t/suite-failing-but-no-obvious-error/1673)
**Author:** [@c.j.r.williams](https://cms-helpdesk.ncas.ac.uk/u/c.j.r.williams)\ **Replies:** 32\ **Last updated:** [30 May 2025 14:33 UTC](https://cms-helpdesk.ncas.ac.uk/t/suite-failing-but-no-obvious-error/1673 "2025-05-30T14:33:33Z")
Hi, Sorry to bother you, but I’m having trouble with one of my suites (u-do321), which is failing at the coupled stage (more or less straightaway). It failed at the end of last week, but that was due to an error in the… --- ## [Access to PUMA2 during ARCHER2 blackout](https://cms-helpdesk.ncas.ac.uk/t/access-to-puma2-during-archer2-blackout/1712)
**Author:** [@ajw1g19](https://cms-helpdesk.ncas.ac.uk/u/ajw1g19)\ **Replies:** 2\ **Last updated:** [28 May 2025 08:02 UTC](https://cms-helpdesk.ncas.ac.uk/t/access-to-puma2-during-archer2-blackout/1712 "2025-05-28T08:02:57Z")
Dear CMS, I noticed today that there is a planned blackout on ARCHER2 between 29th August and 15th September. I was just curious whether there is a way to access puma2 and configure suites without needing to access arch… --- ## [Issue with UMUI Startup](https://cms-helpdesk.ncas.ac.uk/t/issue-with-umui-startup/1531)
**Author:** [@irealm37](https://cms-helpdesk.ncas.ac.uk/u/irealm37)\ **Replies:** 2\ **Last updated:** [2 October 2024 09:34 UTC](https://cms-helpdesk.ncas.ac.uk/t/issue-with-umui-startup/1531 "2024-10-02T09:34:18Z")
I am trying to open the UMUI window. However, every time I type the command umui & in the terminal, I receive the following error message: I would be grateful if you could let me know how to solve this issue. Many t… --- ## [Permission denied error when doing FCM commit back to UM v8.4 branch on PUMA2 ( puma2.archer2.ac.uk FCM repository )](https://cms-helpdesk.ncas.ac.uk/t/permission-denied-error-when-doing-fcm-commit-back-to-um-v8-4-branch-on-puma2-puma2-archer2-ac-uk-fcm-repository/1474)
**Author:** [@gmann](https://cms-helpdesk.ncas.ac.uk/u/gmann)\ **Replies:** 13\ **Last updated:** [17 July 2024 18:17 UTC](https://cms-helpdesk.ncas.ac.uk/t/permission-denied-error-when-doing-fcm-commit-back-to-um-v8-4-branch-on-puma2-puma2-archer2-ac-uk-fcm-repository/1474 "2024-07-17T18:17:13Z")
Dear NCAS-CMS helpdesk team, I am getting an error message when trying to commit code-change back to a UM v8.4 branch on PUMA2. In another ticket i think you advised best to check-out existing FCM branches, to make co… --- ## [NEMO suite failing at building stage](https://cms-helpdesk.ncas.ac.uk/t/nemo-suite-failing-at-building-stage/1429)
**Author:** [@c.j.r.williams](https://cms-helpdesk.ncas.ac.uk/u/c.j.r.williams)\ **Replies:** 6\ **Last updated:** [5 June 2024 07:17 UTC](https://cms-helpdesk.ncas.ac.uk/t/nemo-suite-failing-at-building-stage/1429 "2024-06-05T07:17:05Z")
Hi, Sorry to bother you, but I am having trouble with one of my suites, which ran previously but is now failing to build. It is a NEMO suite, u-dg710, which is a direct copy of my original u-ba251. This used to run ab… --- ## [Error at postproc\_atmos](https://cms-helpdesk.ncas.ac.uk/t/error-at-postproc-atmos/854)
**Author:** [@maychim](https://cms-helpdesk.ncas.ac.uk/u/maychim)\ **Replies:** 4\ **Last updated:** [16 January 2023 11:47 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-at-postproc-atmos/854 "2023-01-16T11:47:52Z")
Dear helpdesk, I have got the below error in postproc\_atmos at the cycle 26771001 in my UKESM1.1 suite (u-ct170). The suite has been running smoothly so far and I have not seen this error message before - and I am not q… --- ## [Submitting a job to ARCHER2](https://cms-helpdesk.ncas.ac.uk/t/submitting-a-job-to-archer2/835)
**Author:** [@MYoshioka](https://cms-helpdesk.ncas.ac.uk/u/MYoshioka)\ **Replies:** 2\ **Last updated:** [8 December 2022 14:45 UTC](https://cms-helpdesk.ncas.ac.uk/t/submitting-a-job-to-archer2/835 "2022-12-08T14:45:49Z")
Hi, I’m trying to submit a bit outdated UM v8.4 job from UMUI on pumanew to ARCHER2. I’m currently trying to run my copy (tfkqy) of gmann’s xplpg, which Graham is trying to run himself. However, the problem I currently… --- ## [Cannot cache password or authenticate rosie access](https://cms-helpdesk.ncas.ac.uk/t/cannot-cache-password-or-authenticate-rosie-access/1311)
**Author:** [@svandebund](https://cms-helpdesk.ncas.ac.uk/u/svandebund)\ **Replies:** 6\ **Last updated:** [26 January 2024 11:32 UTC](https://cms-helpdesk.ncas.ac.uk/t/cannot-cache-password-or-authenticate-rosie-access/1311 "2024-01-26T11:32:08Z")
Good morning, I am having trouble caching my password on PUMA2 to start running jobs on ARCHER2 with access to rose tools, and by extension, using fcm to do work on the LFRic repo on MOSRS. I first run mosrs-cache-pass… --- ## [Connecting to eddie.ecdf.ed.ac.uk](https://cms-helpdesk.ncas.ac.uk/t/connecting-to-eddie-ecdf-ed-ac-uk/1190)
**Author:** [@SimonTett](https://cms-helpdesk.ncas.ac.uk/u/SimonTett)\ **Replies:** 4\ **Last updated:** [18 October 2023 11:21 UTC](https://cms-helpdesk.ncas.ac.uk/t/connecting-to-eddie-ecdf-ed-ac-uk/1190 "2023-10-18T11:21:21Z")
Hi, I’ve set up my new account on puma2 and rsynced over a bunch of files. Eventually, I’d like to run HadCM3 for which I will need to transfer files from puma2 to eddie.ecdf.ed.ac.uk. I suspect I need to ask the eddie… --- ## [Perl script not running on pumanew](https://cms-helpdesk.ncas.ac.uk/t/perl-script-not-running-on-pumanew/811)
**Author:** [@Julia](https://cms-helpdesk.ncas.ac.uk/u/Julia)\ **Replies:** 3\ **Last updated:** [16 January 2023 13:48 UTC](https://cms-helpdesk.ncas.ac.uk/t/perl-script-not-running-on-pumanew/811 "2023-01-16T13:48:13Z")
Hello, We have a script that has been running on puma for several years. The script was written in perl - I did not write the script so am not sure how to debug it. Since moving to pumanew the script has stopped worki… --- ## [Rose suite cannot be killed](https://cms-helpdesk.ncas.ac.uk/t/rose-suite-cannot-be-killed/852)
**Author:** [@maychim](https://cms-helpdesk.ncas.ac.uk/u/maychim)\ **Replies:** 2\ **Last updated:** [6 January 2023 10:24 UTC](https://cms-helpdesk.ncas.ac.uk/t/rose-suite-cannot-be-killed/852 "2023-01-06T10:24:06Z")
Hello helpdesk, My suite (u-cq598) has remained stagnant for a few days (not running/ archiving any output) but it cannot be killed in the interactive GUI or on the command line using the ‘cylc stop u-cq598 --now --now’… --- ## [Headers in GUI not as expected](https://cms-helpdesk.ncas.ac.uk/t/headers-in-gui-not-as-expected/849)
**Author:** [@shakka](https://cms-helpdesk.ncas.ac.uk/u/shakka)\ **Replies:** 4\ **Last updated:** [3 January 2023 15:49 UTC](https://cms-helpdesk.ncas.ac.uk/t/headers-in-gui-not-as-expected/849 "2023-01-03T15:49:58Z")
Hi CMS, This morning I’ve been seeing some strange behaviour on puma. When I open the GUI for any of my suites, I am not seeing what I expect under the /um or /glm\_um sections. Instead of e.g. ‘reconfiguration’ or ‘scie… --- ## [Job\_submission.log permission denied](https://cms-helpdesk.ncas.ac.uk/t/job-submission-log-permission-denied/829)
**Author:** [@MYoshioka](https://cms-helpdesk.ncas.ac.uk/u/MYoshioka)\ **Replies:** 2\ **Last updated:** [7 December 2022 12:46 UTC](https://cms-helpdesk.ncas.ac.uk/t/job-submission-log-permission-denied/829 "2022-12-07T12:46:28Z")
I’m trying to run an oldish vn8.4 job of UM on UMUI from pumanew to ARCHER2. When I try to submit a job (currently tfkqy), I get an error; ERROR: couldn t open “/home/umui/umui/job\_submission.log”: permission denied T… --- ## [BUFFIN: Read Failed](https://cms-helpdesk.ncas.ac.uk/t/buffin-read-failed/592)
**Author:** [@racheldiamond](https://cms-helpdesk.ncas.ac.uk/u/racheldiamond)\ **Replies:** 6\ **Last updated:** [25 May 2022 12:56 UTC](https://cms-helpdesk.ncas.ac.uk/t/buffin-read-failed/592 "2022-05-25T12:56:05Z")
Dear NCAS helpdesk, My suite u-ck767 keeps failing near the end of the coupled task for 19071101T0000Z with error in cylc-run/u-ck767/log/job/19071101T0000Z/coupled/04/job.err: BUFFIN: Read Failed: Cannot allocate memo… --- ## [Difference between UM ainitial and astart?](https://cms-helpdesk.ncas.ac.uk/t/difference-between-um-ainitial-and-astart/583)
**Author:** [@racheldiamond](https://cms-helpdesk.ncas.ac.uk/u/racheldiamond)\ **Replies:** 1\ **Last updated:** [16 May 2022 14:21 UTC](https://cms-helpdesk.ncas.ac.uk/t/difference-between-um-ainitial-and-astart/583 "2022-05-16T14:21:23Z")
Dear NCAS helpdesk, Can I clarify - for HadGEM3 suites like u-as037, what’s the difference between um \> model input and output \> dumping and meaning \> astart (Reconfiguration output/atmosphere input dump) and um \> recon… --- ## [Submit-failed for all tasks today?](https://cms-helpdesk.ncas.ac.uk/t/submit-failed-for-all-tasks-today/582)
**Author:** [@racheldiamond](https://cms-helpdesk.ncas.ac.uk/u/racheldiamond)\ **Replies:** 11\ **Last updated:** [13 May 2022 16:34 UTC](https://cms-helpdesk.ncas.ac.uk/t/submit-failed-for-all-tasks-today/582 "2022-05-13T16:34:06Z")
Dear NCAS helpdesk, Yesterday I had several suites running on ARCHER2, which failed because of the SLURM update. However I’m now unable to restart these: I always get submit-failed on PUMA when I retrigger the task that… --- ## [Issues with submitting coupled task](https://cms-helpdesk.ncas.ac.uk/t/issues-with-submitting-coupled-task/534)
**Author:** [@aschurer](https://cms-helpdesk.ncas.ac.uk/u/aschurer)\ **Replies:** 12\ **Last updated:** [11 May 2022 11:22 UTC](https://cms-helpdesk.ncas.ac.uk/t/issues-with-submitting-coupled-task/534 "2022-05-11T11:22:14Z")
Hi, I’m running UKESM1.1 on ARCHER2. After the job had run for about 25 model years one of the coupled tasks has failed. Looking through the error messages this looks like a disk quota issue. I’ve now freed up space on… --- ## [Email notify events, Rose/Cylc on PUMATest](https://cms-helpdesk.ncas.ac.uk/t/email-notify-events-rose-cylc-on-pumatest/478)
**Author:** [@pmcguire](https://cms-helpdesk.ncas.ac.uk/u/pmcguire)\ **Replies:** 2\ **Last updated:** [18 February 2022 11:18 UTC](https://cms-helpdesk.ncas.ac.uk/t/email-notify-events-rose-cylc-on-pumatest/478 "2022-02-18T11:18:53Z")
Hi CMS Helpdesk My suites u-cl528 and u-cl527 were able to email me when there were events in my suite, when these ARCHER2 suites were run from PUMA. But this isn’t working when running from PUMATest, so far. If it’s e… --- ## [Warm start not redoing all tasks in a cycle?](https://cms-helpdesk.ncas.ac.uk/t/warm-start-not-redoing-all-tasks-in-a-cycle/473)
**Author:** [@pmcguire](https://cms-helpdesk.ncas.ac.uk/u/pmcguire)\ **Replies:** 2\ **Last updated:** [17 February 2022 15:09 UTC](https://cms-helpdesk.ncas.ac.uk/t/warm-start-not-redoing-all-tasks-in-a-cycle/473 "2022-02-17T15:09:56Z")
Hi CMS Helpdesk My suite, u-cl528, which I just did a warm start for in 20030601 on PUMATest and ARCHER2 has already completed the atmos\_main and postproc tasks, whereas the atmos\_main task normally takes several hours. … --- ## [Warm start on PUMATest not working the 1st two times](https://cms-helpdesk.ncas.ac.uk/t/warm-start-on-pumatest-not-working-the-1st-two-times/465)
**Author:** [@pmcguire](https://cms-helpdesk.ncas.ac.uk/u/pmcguire)\ **Replies:** 2\ **Last updated:** [17 February 2022 10:43 UTC](https://cms-helpdesk.ncas.ac.uk/t/warm-start-on-pumatest-not-working-the-1st-two-times/465 "2022-02-17T10:43:38Z")
Hi CMS Helpdesk: I just tried a warm start on PUMATest, after the PUMA failure or whatever the name of the failure is. The first time I did it, it complained about Stale file handles. It didn’t look too serious, so I j… --- ## [ARCHER2 job cancelled due to time limit?](https://cms-helpdesk.ncas.ac.uk/t/archer2-job-cancelled-due-to-time-limit/450)
**Author:** [@racheldiamond](https://cms-helpdesk.ncas.ac.uk/u/racheldiamond)\ **Replies:** 3\ **Last updated:** [14 February 2022 16:11 UTC](https://cms-helpdesk.ncas.ac.uk/t/archer2-job-cancelled-due-to-time-limit/450 "2022-02-14T16:11:05Z")
Dear NCAS Helpdesk, I’m trying to run u-cl809 on ARCHER2, and it keeps failing after running for about 20mins in UMBUILD → fcm\_make2\_um, with errors like slurmstepd: error: \*\*\* JOB 1097664 ON dvn01 CANCELLED AT 2022-02… --- ## [Suites get stuck on pptransfer?](https://cms-helpdesk.ncas.ac.uk/t/suites-get-stuck-on-pptransfer/404)
**Author:** [@racheldiamond](https://cms-helpdesk.ncas.ac.uk/u/racheldiamond)\ **Replies:** 5\ **Last updated:** [19 January 2022 12:57 UTC](https://cms-helpdesk.ncas.ac.uk/t/suites-get-stuck-on-pptransfer/404 "2022-01-19T12:57:24Z")
Hi, I am running suites similar to u-as037, which were all running fine until 15/01/22. However, now these suites (e.g. u-ck768) often seem to get stuck on the pptransfer step: on PUMA, this step will be in state ‘runni… --- ## [Applying UM branch for a HadGEM3 run?](https://cms-helpdesk.ncas.ac.uk/t/applying-um-branch-for-a-hadgem3-run/382)
**Author:** [@racheldiamond](https://cms-helpdesk.ncas.ac.uk/u/racheldiamond)\ **Replies:** 12\ **Last updated:** [14 January 2022 10:33 UTC](https://cms-helpdesk.ncas.ac.uk/t/applying-um-branch-for-a-hadgem3-run/382 "2022-01-14T10:33:44Z")
Hi, I’m running HadGEM3 on ARCHER2. I am trying to reproduce the output from suite u-ba937, which was run on ARCHER1. My suite u-ck619 uses Rose GUI setting fcm\_make\_um \> env \> sources \> um\_sources=‘branches/dev/mariavi… --- ## [Write failed, user block limit reached](https://cms-helpdesk.ncas.ac.uk/t/write-failed-user-block-limit-reached/394)
**Author:** [@lpb20](https://cms-helpdesk.ncas.ac.uk/u/lpb20)\ **Replies:** 2\ **Last updated:** [13 January 2022 17:39 UTC](https://cms-helpdesk.ncas.ac.uk/t/write-failed-user-block-limit-reached/394 "2022-01-13T17:39:58Z")
Hi, I have managed to change my suite (u-ch249) to submit correctly onto the full ARCHER2 system, however I seem to be having an issue with storage on puma. When I run the suite it fails on the fcm\_make\_um however fails… [Next page](https://cms-helpdesk.ncas.ac.uk/tag/puma/8.md?match_all_tags=true&page=1&tags%5B%5D=PUMA)