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add efficiency note

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Lukas Winkler 2023-02-02 15:08:32 +01:00
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content/guide/vsc-slum-tips-and-tricks.md
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@ -176,6 +176,12 @@ Sometimes you might want to submit a larger number of similar jobs. This can be
./your_program $SLURM_ARRAY_TASK_ID
```
{{< alert type="warning" >}}
Keep in mind that each individual job should not be too small (more than just a few minutes) as otherwise the computational overhead of scheduling the job and starting it will not be worth it. In these cases using one job that runs the program in a loop will be more efficient.
{{< /alert >}}
## SSH login via login.univie.ac.at
[official docs](https://wiki.vsc.ac.at/doku.php?id=doku:vpn_ssh_access) (but we are using the more modern ProxyJump instead of Agent forwarding as this way we don't have to trust the intermediate server with our private key)