# Nemo postproc error in coupled run

**URL:** <https://cms-helpdesk.ncas.ac.uk/t/nemo-postproc-error-in-coupled-run/1800>\
**Category:** Uncategorized\
**Created:** [27 August 2025 15:28 UTC](https://cms-helpdesk.ncas.ac.uk/t/nemo-postproc-error-in-coupled-run/1800 "2025-08-27T15:28:24Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![James\_Weber](https://avatars.discourse-cdn.com/v4/letter/j/e495f1/32.png) [@James\_Weber](https://cms-helpdesk.ncas.ac.uk/u/James_Weber)\
**Post date:** [27 August 2025 15:28 UTC](https://cms-helpdesk.ncas.ac.uk/t/nemo-postproc-error-in-coupled-run/1800/1 "2025-08-27T15:28:24Z")

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Hi,

I’ve had a recurring NEMO postproc error which has appears after 18 months of a coupled run (6m resubmission). Is this a disk quota error? The suite is u-ds207 and it is up to date with commits.

[WARN] file:atmospp.nl: skip missing optional source: namelist:moose\_arch  
[WARN] file:nemocicepp.nl: skip missing optional source: namelist:moose\_arch  
[WARN] file:atmospp.nl: skip missing optional source: namelist:script\_arch  
[WARN] file:nemocicepp.nl: skip missing optional source: namelist:script\_arch  
[WARN] [SUBPROCESS]: Command: /work/y07/shared/umshared/nemo/utils/src/REBUILD\_NEMO/BLD/bin/rebuild\_nemo.exe rebuild\_DS207O\_18510101\_RESTART\_TRC  
[SUBPROCESS]: Error = -9:  
WARNING: libu: memcpy AMD cpuid detection failed  
[ERROR] /work/y07/shared/umshared/nemo/utils/src/REBUILD\_NEMO/BLD/bin/rebuild\_nemo.exe rebuild\_DS207O\_18510101\_RESTART\_TRC: Error=-9  
→ Failed to rebuild file: /work/n02/n02/jweber/cylc-run/u-ds207/share/data/History\_Data/NEMOhist/ds207o\_18510101\_restart\_trc.nc  
[FAIL] Command Terminated  
[FAIL] Terminating PostProc…  
[FAIL] main\_pp.py nemo \<\<‘ **STDIN** ’  
[FAIL]  
[FAIL] ‘ **STDIN** ’ # return-code=1  
2025-08-27T15:17:27Z CRITICAL - failed/EXIT  
slurmstepd: error: Detected 1 oom-kill event(s) in StepId=10745534.batch. Some of your processes may have been killed by the cgroup out-of-memory handler.

Cheers,

James

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**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:** [27 August 2025 17:41 UTC](https://cms-helpdesk.ncas.ac.uk/t/nemo-postproc-error-in-coupled-run/1800/2 "2025-08-27T17:41:23Z")

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Hi James,

Looks like you’ve fixed the OOM now by requesting more memory with the `--mem=25G` directive. That was what I was going to suggest. 😀

Let me know if that isn’t the case.

Cheers,  
Ros.

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**Author:** ![James\_Weber](https://avatars.discourse-cdn.com/v4/letter/j/e495f1/32.png) [@James\_Weber](https://cms-helpdesk.ncas.ac.uk/u/James_Weber)\
**Post date:** [27 August 2025 17:44 UTC](https://cms-helpdesk.ncas.ac.uk/t/nemo-postproc-error-in-coupled-run/1800/3 "2025-08-27T17:44:42Z")

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Thanks, Ros, I found your advice to Charlie. I should have looked harder!

Cheers,

James

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<div class="post-metadata">

**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:** [28 August 2025 07:25 UTC](https://cms-helpdesk.ncas.ac.uk/t/nemo-postproc-error-in-coupled-run/1800/4 "2025-08-28T07:25:37Z")

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