# Setting runtime

**URL:** <https://www.simscale.com/forum/t/setting-runtime/100429>\
**Category:** Using SimScale\
**Created:** [October 2, 2025, 9:16am UTC](https://www.simscale.com/forum/t/setting-runtime/100429 "2025-10-02T09:16:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![evangtsichlas](https://www.simscale.com/forum/letter_avatar/evangtsichlas/32/5_5575768a8748004e209b776fc1b2916d.png) [@evangtsichlas](https://www.simscale.com/forum/u/evangtsichlas)\
**Post date:** [October 2, 2025, 9:16am UTC](https://www.simscale.com/forum/t/setting-runtime/100429/1 "2025-10-02T09:16:44Z")

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Hi,

I run free simscale and I have put the value 60000s in the runtime. Is it problem? Is it acceptable?

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**Author:** ![Ricardopg](https://www.simscale.com/forum/user_avatar/www.simscale.com/ricardopg/32/26909_2.png) [@Ricardopg](https://www.simscale.com/forum/u/Ricardopg)\
**Post date:** [October 5, 2025, 5:32pm UTC](https://www.simscale.com/forum/t/setting-runtime/100429/2 "2025-10-05T17:32:27Z")

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Hi,

Assuming that you’re referring to the “maximum runtime”, this is the wall time (in seconds) that you allow the simulation to run for. This will be enough to finish simulating most cases, unless you’re running a lot of iterations and/or are dealing with large meshes.

FYI: the default setting is 20000 for CFD and 3600 for FEA.

Cheers

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<div class="post-metadata">

**Author:** ![evangtsichlas](https://www.simscale.com/forum/letter_avatar/evangtsichlas/32/5_5575768a8748004e209b776fc1b2916d.png) [@evangtsichlas](https://www.simscale.com/forum/u/evangtsichlas)\
**Post date:** [October 5, 2025, 8:20pm UTC](https://www.simscale.com/forum/t/setting-runtime/100429/3 "2025-10-05T20:20:25Z")

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Hi,

Thank you very much!

Cheers  
Evangelos Tsichlas