# Running multiple standalone simulations \[Request for Feedback\]

**URL:** <https://brian.discourse.group/t/running-multiple-standalone-simulations-request-for-feedback/802>\
**Category:** Development\
**Tags:** cpp\_standalone, rff\
**Created:** [10 October 2022 10:03 UTC](https://brian.discourse.group/t/running-multiple-standalone-simulations-request-for-feedback/802 "2022-10-10T10:03:48Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![mstimberg](https://yyz2.discourse-cdn.com/free1/user_avatar/brian.discourse.group/mstimberg/32/11_2.png) [@mstimberg](https://brian.discourse.group/u/mstimberg)\
**Post date:** [1 August 2023 14:47 UTC](https://brian.discourse.group/t/running-multiple-standalone-simulations-request-for-feedback/802/22 "2023-08-01T14:47:29Z")

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Hi everyone 👋, just to let you know that the “change parameters between standalone runs” feature has now been merged into master and is ready for more extensive testing. It will be a few months before the next release, so please understand that some details of the feature might still change, but these changes should be minor (unless someone finds a major issue, of course). To test, you can install Brian’s latest development version as explained in the [installation docs](https://brian2.readthedocs.io/en/latest/introduction/install.html#development-install) (the version that introduced the feature is `2.5.4.post54 `), or of course run Brian directly from its git repository. There is quite a bit of documentation for the new feature, and I added/updated examples to use it as well (make sure you are on the “latest” version of the documentation, the “stable” version won’t show it). Please note that – thanks to the suggestions in this discussion thread – this feature not only works for neuronal variables, but also for synapses and `TimedArray`.

A few links:

- [user documentation for the feature](https://brian2.readthedocs.io/en/latest/user/computation.html#multiple-full-simulation-runs)
- [developer documentation for the feature](https://brian2.readthedocs.io/en/latest/developer/standalone.html#command-line-arguments)
- [Bisection example from Stimberg et al. 2019, using the feature](https://brian2.readthedocs.io/en/latest/examples/frompapers.Stimberg_et_al_2019.example_3_bisection_standalone.html)
- [Adapted example for efficient multiple runs of standalone](https://brian2.readthedocs.io/en/latest/examples/standalone.standalone_multiplerun.html)
- [Using standalone with multiple processes](https://brian2.readthedocs.io/en/latest/examples/standalone.standalone_multiple_processes.html)

Let me know what you think and whether it works for you!

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