# ESM1.5 Cannot find UM executable **URL:** \ **Category:** Earth System Model\ **Tags:** help, payu, access-esm15\ **Created:** [10 March 2025 02:36 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283 "2025-03-10T02:36:25Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![LaurieM](https://avatars.discourse-cdn.com/v4/letter/l/ccd318/32.png) [@LaurieM](https://forum.access-hive.org.au/u/LaurieM)\ **Post date:** [10 March 2025 02:36 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/1 "2025-03-10T02:36:25Z")
Hello, Sorry, but I am having the [same issue as David](https://forum.access-hive.org.au/t/new-esm1-5-release-cannot-find-um-executable/3648/9). First time trying to run the model, so I simply followed the steps in [Run ACCESS-ESM - ACCESS-Hive Docs](https://access-hive.org.au/models/run-a-model/run-access-esm/#about) I tried ```bash module purge payu sweep payu run ``` and ```bash payu sweep && payu-run ``` but I always get the same error: ```python Traceback (most recent call last): File "/g/data/vk83/apps/base_conda/envs/payu-1.1.6/bin/payu-run", line 10, in sys.exit(runscript()) File "/g/data/vk83/apps/base_conda/envs/payu-1.1.6/lib/python3.10/site-packages/payu/subcommands/run_cmd.py", line 133, in runscript expt.setup() File "/g/data/vk83/apps/base_conda/envs/payu-1.1.6/lib/python3.10/site-packages/payu/experiment.py", line 475, in setup model.setup() File "/g/data/vk83/apps/base_conda/envs/payu-1.1.6/lib/python3.10/site-packages/payu/models/um.py", line 127, in setup super(UnifiedModel, self).setup() File "/g/data/vk83/apps/base_conda/envs/payu-1.1.6/lib/python3.10/site-packages/payu/models/model.py", line 320, in setup raise FileNotFoundError( FileNotFoundError: Executable for atmosphere model not found on path: /scratch/y99/lcm561/access-esm/bin/um_hg3.exe ``` I don’t have any conda loaded Thanks for your help! ---
**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:** [10 March 2025 04:57 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/2 "2025-03-10T04:57:41Z")
Hi @LaurieM. I’ve moved your query to it’s own topic so the triage team can pick it up. Today is a public holiday in the ACT, so there probably won’t be anyone who can look at it until then, but off the top of my head I can see you’re trying to access your own executable at `/scratch/y99/lcm561/access-esm/bin/um_hg3.exe`. I’d suggest running ```bash payu setup payu sweep payu run ``` and see if that helps `payu` to guess the right storage flags for your experiment. ---
**Author:** ![LaurieM](https://avatars.discourse-cdn.com/v4/letter/l/ccd318/32.png) [@LaurieM](https://forum.access-hive.org.au/u/LaurieM)\ **Post date:** [10 March 2025 05:13 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/3 "2025-03-10T05:13:33Z")
Thanks Aidan, but I am not trying to access my own executable. Just trying the default setup as suggested on the Hive: [Run ACCESS-ESM - ACCESS-Hive Docs](https://access-hive.org.au/models/run-a-model/run-access-esm/#get-access-esm15-configuration) I have already run the 3 commands you mention. ---
**Author:** ![dkhutch](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dkhutch/32/510_2.png) [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Post date:** [10 March 2025 05:39 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/4 "2025-03-10T05:39:08Z")
Hi @LaurieM, This error looks like you are lacking access to the modules that contain the UM executable. Are you a member of `ki32` and `ki32_mosrs` projects on NCI? If not, send a request to join those groups. Note that this requires having a MOSRS account, which is a separate process. There was also a temporary workaround in place for some new users, but I don’t know if this is available. Regards, David ---
**Author:** ![dkhutch](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.access-hive.org.au/dkhutch/32/510_2.png) [@dkhutch](https://forum.access-hive.org.au/u/dkhutch)\ **Post date:** [10 March 2025 05:42 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/5 "2025-03-10T05:42:11Z")
> [@Aidan](#): > > I can see you’re trying to access your own executable at `/scratch/y99/lcm561/access-esm/bin/um_hg3.exe` I believe this is the fallback behaviour when payu can’t find um\_hg3.exe in the module that it is supposed to. ---
**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:** [10 March 2025 23:55 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/6 "2025-03-10T23:55:39Z")
> [@dkhutch](#): > > I believe this is the fallback behaviour when payu can’t find um\_hg3.exe in the module that it is supposed to. Yes you’re correct @dkhutch. I made an incorrect assumption. Sorry you’ve been inconvenienced @LaurieM. The documentation does [cover the requirement for a MOSRS account and project memberships](https://access-hive.org.au/models/run-a-model/run-access-esm/#model-specific-prerequisites), but if you think that is insufficient we could try and make it more prominent. ACCESS-NRI is in the process of finalising a Research Partnership agreement with the UKMO. Until that is finalised we have to use the existing processes to grant access to UKMO licensed material, and ACCESS-ESM1.5 uses the UM, which is a UKMO licensed product. ---
**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:** [11 March 2025 03:46 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/7 "2025-03-11T03:46:49Z")
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**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:** [11 March 2025 09:24 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/8 "2025-03-11T09:24:50Z")
@LaurieM confirmed the problem was not having the correct project memberships. This has been rectified so I will close this topic. ---
**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:** [11 March 2025 09:24 UTC](https://forum.access-hive.org.au/t/esm1-5-cannot-find-um-executable/4283/9 "2025-03-11T09:24:55Z")