# JULES **URL:** https://cms-helpdesk.ncas.ac.uk/c/jules/6.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) --- ## [About the JULES category](https://cms-helpdesk.ncas.ac.uk/t/about-the-jules-category/13)
**Author:** [@RosalynHatcher](https://cms-helpdesk.ncas.ac.uk/u/RosalynHatcher)\ **Replies:** 0\ **Last updated:** [20 April 2021 08:57 UTC](https://cms-helpdesk.ncas.ac.uk/t/about-the-jules-category/13 "2021-04-20T08:57:28Z")
Queries relating to running JULES. Include as much information as is relevant, but especially: Be sure to include the id of the suite (eg u-ax291). Cut and paste any error messages you have. Provide the full pa… --- ## [Out of memory error](https://cms-helpdesk.ncas.ac.uk/t/out-of-memory-error/2183)
**Author:** [@sarcol](https://cms-helpdesk.ncas.ac.uk/u/sarcol)\ **Replies:** 5\ **Last updated:** [28 September 2026 11:06 UTC](https://cms-helpdesk.ncas.ac.uk/t/out-of-memory-error/2183 "2026-09-28T11:06:10Z")
Hello I’m running JULES on JASMIN (suite u-ec531). I’m using a version of JULES 5.2 with the DGW groundwater model in it. The model needed a lot of spin up for the groundwater, so I was running a couple of spin up cycle… --- ## [Running JULES on JASMIN](https://cms-helpdesk.ncas.ac.uk/t/running-jules-on-jasmin/2112)
**Author:** [@ajw1g19](https://cms-helpdesk.ncas.ac.uk/u/ajw1g19)\ **Replies:** 1\ **Last updated:** [25 June 2026 09:32 UTC](https://cms-helpdesk.ncas.ac.uk/t/running-jules-on-jasmin/2112 "2026-06-25T09:32:44Z")
Dear CMS Helpdesk, I’d like to look into running some JULES simulations on JASMIN as it seems more of the supporting architecture is installed there instead of ARCHER2. How does this process work with regards accounting… --- ## [Cylc install hangs](https://cms-helpdesk.ncas.ac.uk/t/cylc-install-hangs/2108)
**Author:** [@sarcol](https://cms-helpdesk.ncas.ac.uk/u/sarcol)\ **Replies:** 5\ **Last updated:** [25 June 2026 07:22 UTC](https://cms-helpdesk.ncas.ac.uk/t/cylc-install-hangs/2108 "2026-06-25T07:22:36Z")
Hello I have been away for the last year and a rose suite (u-dg545) that I had running fine before I left is now failing. It was running on the new cylc2 with lotus2. At the moment, when I try “cylc install” it just han… --- ## [JULES suites on ARCHER](https://cms-helpdesk.ncas.ac.uk/t/jules-suites-on-archer/2105)
**Author:** [@ajw1g19](https://cms-helpdesk.ncas.ac.uk/u/ajw1g19)\ **Replies:** 1\ **Last updated:** [17 June 2026 14:10 UTC](https://cms-helpdesk.ncas.ac.uk/t/jules-suites-on-archer/2105 "2026-06-17T14:10:15Z")
Dear CMS Helpdesk, I’m looking to run a pre-Industrial control suite of JULES standalone on ARCHER2, preferably with n96 resolution. Could you recommend a suite that I can copy to start with? Thanks, Alfred --- ## [Help with SIGBUS or Bus error while running multiple JULES models on JASMINE](https://cms-helpdesk.ncas.ac.uk/t/help-with-sigbus-or-bus-error-while-running-multiple-jules-models-on-jasmine/2059)
**Author:** [@Assumpta](https://cms-helpdesk.ncas.ac.uk/u/Assumpta)\ **Replies:** 10\ **Last updated:** [13 May 2026 16:59 UTC](https://cms-helpdesk.ncas.ac.uk/t/help-with-sigbus-or-bus-error-while-running-multiple-jules-models-on-jasmine/2059 "2026-05-13T16:59:35Z")
I am currently running JULES on JASMIN using the batch system. When submitting only one model job on the batch system, the model runs fine without throwing any error. But when I submit more than two model jobs, then one… --- ## [Error from CHECK\_JULES\_URBAN](https://cms-helpdesk.ncas.ac.uk/t/error-from-check-jules-urban/2053)
**Author:** [@rglazer](https://cms-helpdesk.ncas.ac.uk/u/rglazer)\ **Replies:** 2\ **Last updated:** [20 April 2026 10:16 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-from-check-jules-urban/2053 "2026-04-20T10:16:34Z")
Hello, I have recently switched on the flag for turning on anthropogenic heat flux (‘l\_anthrop\_heat\_src’) and have recieved this error during reconfigure: ??? ???!!!???!!!???!!!???!!!???!!! ERROR ???!!!??… --- ## [JASMIN $SBATCH settings mismatch between roses/rose-suite.conf and job file (in rundir)](https://cms-helpdesk.ncas.ac.uk/t/jasmin-sbatch-settings-mismatch-between-roses-rose-suite-conf-and-job-file-in-rundir/2015)
**Author:** [@ailishgraham](https://cms-helpdesk.ncas.ac.uk/u/ailishgraham)\ **Replies:** 5\ **Last updated:** [9 March 2026 21:04 UTC](https://cms-helpdesk.ncas.ac.uk/t/jasmin-sbatch-settings-mismatch-between-roses-rose-suite-conf-and-job-file-in-rundir/2015 "2026-03-09T21:04:30Z")
I get the following error for my test run: ERROR: sbatch: error: Batch job submission failed: Invalid account or account/partition combination specified I think I have found out what is causing this error but can’t … --- ## [ANTS ancillary files on JASMIN](https://cms-helpdesk.ncas.ac.uk/t/ants-ancillary-files-on-jasmin/2020)
**Author:** [@emrobi](https://cms-helpdesk.ncas.ac.uk/u/emrobi)\ **Replies:** 2\ **Last updated:** [4 March 2026 17:04 UTC](https://cms-helpdesk.ncas.ac.uk/t/ants-ancillary-files-on-jasmin/2020 "2026-03-04T17:04:48Z")
Hi, I’m trying to get an ANTS suite running on JASMIN to create JULES ancillaries, following on from tickets 1638 and 1792. My suite is u-dx415. Some of the tasks are failing as some of the expected input files aren’t a… --- ## [Updating the JULES source code of a suite u-knr47 from vn7.0 to vn7.6](https://cms-helpdesk.ncas.ac.uk/t/updating-the-jules-source-code-of-a-suite-u-knr47-from-vn7-0-to-vn7-6/1950)
**Author:** [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\ **Replies:** 1\ **Last updated:** [5 January 2026 17:11 UTC](https://cms-helpdesk.ncas.ac.uk/t/updating-the-jules-source-code-of-a-suite-u-knr47-from-vn7-0-to-vn7-6/1950 "2026-01-05T17:11:32Z")
Hi, I am trying to update the source code of a suite u-knr47 which currently uses the jules vn7.0 to vn7.6. The jules vn7.0 has additional code over the official release to implement the p-model. As a latest version of … --- ## [Running the jules suite with a different source code (cont...)](https://cms-helpdesk.ncas.ac.uk/t/running-the-jules-suite-with-a-different-source-code-cont/1877)
**Author:** [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\ **Replies:** 3\ **Last updated:** [21 November 2025 15:11 UTC](https://cms-helpdesk.ncas.ac.uk/t/running-the-jules-suite-with-a-different-source-code-cont/1877 "2025-11-21T15:11:25Z")
Hi, A follow up to the task taken up to run the suite with a different source code. (Earlier topic was: Running an suite with a new jules source code) There were a few namelist variables that are missing in the vn7.0… --- ## [Running an suite with a new jules source code](https://cms-helpdesk.ncas.ac.uk/t/running-an-suite-with-a-new-jules-source-code/1876)
**Author:** [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\ **Replies:** 2\ **Last updated:** [17 November 2025 14:34 UTC](https://cms-helpdesk.ncas.ac.uk/t/running-an-suite-with-a-new-jules-source-code/1876 "2025-11-17T14:34:44Z")
Hi David, I am trying to run an existing suite “u-dr154” with a different source code, that has new science in it. To do this, I have copied the u-dr154 into u-knr47 for my reference. In u-knr47 i have made two changes: … --- ## [Error in the output profile while running JULES](https://cms-helpdesk.ncas.ac.uk/t/error-in-the-output-profile-while-running-jules/1872)
**Author:** [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\ **Replies:** 5\ **Last updated:** [12 November 2025 15:02 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-the-output-profile-while-running-jules/1872 "2025-11-12T15:02:16Z")
Hi, I am running JULES suite u-dr154. I have made changes to the output\_profile (added below), to write half hourly from 2006 to 2015. ““ \[namelist:jules\_output\] dump\_period=1 nprofiles=3 output\_dir=‘$OUTPUT\_FOLDER… --- ## [Routine JULES workflow failing to run on JASMIN](https://cms-helpdesk.ncas.ac.uk/t/routine-jules-workflow-failing-to-run-on-jasmin/1833)
**Author:** [@r.i.maidment](https://cms-helpdesk.ncas.ac.uk/u/r.i.maidment)\ **Replies:** 2\ **Last updated:** [15 October 2025 13:58 UTC](https://cms-helpdesk.ncas.ac.uk/t/routine-jules-workflow-failing-to-run-on-jasmin/1833 "2025-10-15T13:58:04Z")
Hi, I have a routine JULES workflow that updates the operational TAMSAT all-Africa soil moisture dataset. The suite, running on Cylc2 on JASMIN, is configured to execute automatically when new driving data become availa… --- ## [JULES model batch](https://cms-helpdesk.ncas.ac.uk/t/jules-model-batch/1831)
**Author:** [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Replies:** 2\ **Last updated:** [13 October 2025 14:06 UTC](https://cms-helpdesk.ncas.ac.uk/t/jules-model-batch/1831 "2025-10-13T14:06:52Z")
Hi everyone, I have been in touch for the last weeks trying to update my suite (u-ds632) and make it run again on JASMIN, after the updates on the system. My suite now manages to start the spin-up runs but is failing, p… --- ## [Error in running JULES](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810)
**Author:** [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\ **Replies:** 2\ **Last updated:** [29 September 2025 16:21 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules/1810 "2025-09-29T16:21:21Z")
Hi, I am trying to run the suite u-dr154. I am getting an error that says user not found (screenshot attached) How can I resolve this issue? I do not find a place where the I am defining this. Thanks for the help i… --- ## [SVN issues with JULES on Jasmin](https://cms-helpdesk.ncas.ac.uk/t/svn-issues-with-jules-on-jasmin/1802)
**Author:** [@Ol\_Perkins1987](https://cms-helpdesk.ncas.ac.uk/u/Ol_Perkins1987)\ **Replies:** 5\ **Last updated:** [4 September 2025 12:24 UTC](https://cms-helpdesk.ncas.ac.uk/t/svn-issues-with-jules-on-jasmin/1802 "2025-09-04T12:24:17Z")
Hi there, I have been receiving errors from code.metoffice whilst trying to compile JULES from Jasmin \[cylc2 server\]. I am running suite u-dq927, which has previously run with no errors. Running mosrs-check returns okay… --- ## [ERROR in running JULES on JASMIN](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules-on-jasmin/1746)
**Author:** [@n.kangari](https://cms-helpdesk.ncas.ac.uk/u/n.kangari)\ **Replies:** 7\ **Last updated:** [7 July 2025 12:45 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-in-running-jules-on-jasmin/1746 "2025-07-07T12:45:26Z")
I am running the JULES suite u-dr154 which is a copy of u-dq447 @ rev 324632. I had to change some file paths in rose-suite.conf as suggested by the owner Rebecca Oliver. After making all the changes, I am ending up wit… --- ## [JULES segmentation fault after spinup](https://cms-helpdesk.ncas.ac.uk/t/jules-segmentation-fault-after-spinup/1726)
**Author:** [@jmackay](https://cms-helpdesk.ncas.ac.uk/u/jmackay)\ **Replies:** 1\ **Last updated:** [13 June 2025 14:46 UTC](https://cms-helpdesk.ncas.ac.uk/t/jules-segmentation-fault-after-spinup/1726 "2025-06-13T14:46:53Z")
Hi all, Since I’ve migrated my several of my suites (for running JULES) over to Cylc 8, I can’t seem to get them to run beyond the spinup period. I’ve got three different suites (de001, dg594 and dp235 - (run1)) which a… --- ## [Suite for running JULES with Cylc 8 freezes](https://cms-helpdesk.ncas.ac.uk/t/suite-for-running-jules-with-cylc-8-freezes/1725)
**Author:** [@jmackay](https://cms-helpdesk.ncas.ac.uk/u/jmackay)\ **Replies:** 2\ **Last updated:** [13 June 2025 09:05 UTC](https://cms-helpdesk.ncas.ac.uk/t/suite-for-running-jules-with-cylc-8-freezes/1725 "2025-06-13T09:05:35Z")
Hello everyone, I’m having an issue running a rose suite (Cylc 8 compatible suite) that compiles and runs JULES on the cylc2 node. It seems to to get stuck, right at the beginning of the process. The suite ID is u-dp235… --- ## [SOLVED: Segmentation fault in triffid](https://cms-helpdesk.ncas.ac.uk/t/solved-segmentation-fault-in-triffid/1701)
**Author:** [@Ol\_Perkins1987](https://cms-helpdesk.ncas.ac.uk/u/Ol_Perkins1987)\ **Replies:** 0\ **Last updated:** [13 May 2025 09:11 UTC](https://cms-helpdesk.ncas.ac.uk/t/solved-segmentation-fault-in-triffid/1701 "2025-05-13T09:11:25Z")
EDIT 2: This is solved. The issue was with fixes to snow in the temp\_fixes namelist. In case someone is having a similar issue, here is the namelist that fixed my issue. \[namelist:jules\_temp\_fixes\] ctile\_orog\_fix=2 l\_… --- ## [Issue compiling JULES v6.0 on cylc2 -IGNORE - SOLVED!](https://cms-helpdesk.ncas.ac.uk/t/issue-compiling-jules-v6-0-on-cylc2-ignore-solved/1694)
**Author:** [@jmackay](https://cms-helpdesk.ncas.ac.uk/u/jmackay)\ **Replies:** 1\ **Last updated:** [23 April 2025 10:39 UTC](https://cms-helpdesk.ncas.ac.uk/t/issue-compiling-jules-v6-0-on-cylc2-ignore-solved/1694 "2025-04-23T10:39:51Z")
Hello, I’ve been trying to migrate an existing suite (u-dp235) to work on cylc2, however, I’m struggling to compile JULES using FCM. I get the following error which leads to a bunch of subsequent errors: “\[FAIL\] mpif90… --- ## [Prescribing JULES PFT](https://cms-helpdesk.ncas.ac.uk/t/prescribing-jules-pft/1676)
**Author:** [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Replies:** 6\ **Last updated:** [22 April 2025 09:09 UTC](https://cms-helpdesk.ncas.ac.uk/t/prescribing-jules-pft/1676 "2025-04-22T09:09:54Z")
Hi there, I am running a suite (u-dn669) belonging to the ISIMIP3a intercomparison. I am trying to prescribe the PFT, but it has failed with the following statement: {MPI Task 1} \[FATAL ERROR\] init\_ic: Land ice points … --- ## [L\_triffid = .false. and prescribed PFT](https://cms-helpdesk.ncas.ac.uk/t/l-triffid-false-and-prescribed-pft/1646)
**Author:** [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Replies:** 8\ **Last updated:** [28 February 2025 13:40 UTC](https://cms-helpdesk.ncas.ac.uk/t/l-triffid-false-and-prescribed-pft/1646 "2025-02-28T13:40:58Z")
Hi there, I am running a suite (u-dn669) belonging to the ISIMIP3a intercomparison. This model usually runs from 1801 to 2019 and to 2022 to some climatic datasets, but I cut it from 2001. I have run this model many tim… --- ## [NetCDF error when running JULES on LOTUS2](https://cms-helpdesk.ncas.ac.uk/t/netcdf-error-when-running-jules-on-lotus2/1640)
**Author:** [@byx](https://cms-helpdesk.ncas.ac.uk/u/byx)\ **Replies:** 7\ **Last updated:** [14 February 2025 15:57 UTC](https://cms-helpdesk.ncas.ac.uk/t/netcdf-error-when-running-jules-on-lotus2/1640 "2025-02-14T15:57:48Z")
Hi there, I am running JULES on LOTUS2 using MPI, and all submitted jobs ran smoothly for the first 2-3 hours. I requested 48 hours of running time, but they were often shut down in the middle of the job. The error mes… --- ## [UMDIR/ancil for ANTS on Jasmin](https://cms-helpdesk.ncas.ac.uk/t/umdir-ancil-for-ants-on-jasmin/1638)
**Author:** [@richE](https://cms-helpdesk.ncas.ac.uk/u/richE)\ **Replies:** 4\ **Last updated:** [6 February 2025 11:16 UTC](https://cms-helpdesk.ncas.ac.uk/t/umdir-ancil-for-ants-on-jasmin/1638 "2025-02-06T11:16:49Z")
Hi all, I have been asked to look into get ANTS running so people outside the MO can make ancils for JULES. I know V has vn2.0 of ANTS on there but need the base datasets to get it running. This includes UMDIR to get t… --- ## [JULES rose suite unable to run on Jasmin LOTUS2](https://cms-helpdesk.ncas.ac.uk/t/jules-rose-suite-unable-to-run-on-jasmin-lotus2/1625)
**Author:** [@Ol\_Perkins1987](https://cms-helpdesk.ncas.ac.uk/u/Ol_Perkins1987)\ **Replies:** 8\ **Last updated:** [27 January 2025 17:48 UTC](https://cms-helpdesk.ncas.ac.uk/t/jules-rose-suite-unable-to-run-on-jasmin-lotus2/1625 "2025-01-27T17:48:00Z")
Hi there, I am working on JULES, using rose suite u-dg275 on Jasmin. This has previously run fine, but is now returning the error: “Please verify that both the operating system and the processor support Intel(R) X87, C… --- ## [Error reading variable 'tas\_rangeAdjust'](https://cms-helpdesk.ncas.ac.uk/t/error-reading-variable-tas-rangeadjust/1591)
**Author:** [@gwy](https://cms-helpdesk.ncas.ac.uk/u/gwy)\ **Replies:** 2\ **Last updated:** [16 December 2024 12:02 UTC](https://cms-helpdesk.ncas.ac.uk/t/error-reading-variable-tas-rangeadjust/1591 "2024-12-16T12:02:26Z")
Dear Helpdesk, Recently I have been trying to set up run with the global simulation with my suite u-dl038. The first two spin-up work succeeded but the historic run failed with error massage {MPI Task 0} \[FATAL ERROR\] f… --- ## [JULES l\_vg parameters](https://cms-helpdesk.ncas.ac.uk/t/jules-l-vg-parameters/1583)
**Author:** [@richE](https://cms-helpdesk.ncas.ac.uk/u/richE)\ **Replies:** 4\ **Last updated:** [4 December 2024 12:24 UTC](https://cms-helpdesk.ncas.ac.uk/t/jules-l-vg-parameters/1583 "2024-12-04T12:24:31Z")
Hi all, Before writing my own, I thought I would try here. Does anyone have code to create JULES soil hydraulic parameters, from sand/clay and maybe bulk density, for a l\_vg = True configuration. Thanks in advance. Ric… --- ## [Adding a jules\_prescribed\_dataset](https://cms-helpdesk.ncas.ac.uk/t/adding-a-jules-prescribed-dataset/1550)
**Author:** [@MariaPVG](https://cms-helpdesk.ncas.ac.uk/u/MariaPVG)\ **Replies:** 11\ **Last updated:** [24 November 2024 17:39 UTC](https://cms-helpdesk.ncas.ac.uk/t/adding-a-jules-prescribed-dataset/1550 "2024-11-24T17:39:13Z")
Hi there, I am running a JULES-ES suite (u-dj895) in JASMIN with INFERNO (fire dynamic model). INFERNO requires prescribed data for flash rate and population density for the ignition method I am using. However, there is … [Next page](https://cms-helpdesk.ncas.ac.uk/c/jules/6.md?page=1)