> For the complete documentation index, see [llms.txt](https://iddynamics.gitbook.io/flepimop/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://iddynamics.gitbook.io/flepimop/how-to-run/tips-tricks-faq.md).

# Tips, tricks, FAQ

## Deleting `model_output/` (or any big folder) is too long on the cluster

Yes, it takes ages because IO can be so slow, and there are many small files. If you are in a hurry, you can do

```bash
mv model_output/ model_output_old
rm -r model_output_old &
```

The first command rename/move `model_output`, it is instantaneous. You can now re-run something. To delete the renamed folder, run the second command. the `&` at the end makes it execute in the background.

## Use `seff` to analyze a job

After a job has run (either to completion or got terminated/fail), you may run:

```bash
seff JOB_ID
```

to know how much ressources your job used in your node, what was the cause for termination and so on. If you don't remember the `JOB_ID`, look for the number in the filename of the slurm log (`slurm_{JOB_ID}.out`).


---

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