# How do I start a coupled simulation with preCICE?

**URL:** <https://precice.discourse.group/t/how-do-i-start-a-coupled-simulation-with-precice/18>\
**Category:** Using preCICE\
**Tags:** faq\
**Created:** [September 23, 2019, 3:00pm UTC](https://precice.discourse.group/t/how-do-i-start-a-coupled-simulation-with-precice/18 "2019-09-23T15:00:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fsimonis](https://yyz2.discourse-cdn.com/free1/user_avatar/precice.discourse.group/fsimonis/32/6_2.png) [@fsimonis](https://precice.discourse.group/u/fsimonis)\
**Post date:** [September 23, 2019, 3:00pm UTC](https://precice.discourse.group/t/how-do-i-start-a-coupled-simulation-with-precice/18/1 "2019-09-23T15:00:32Z")

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Do I have to start the participants using a launcher script or using some special arguments?

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**Author:** ![fsimonis](https://yyz2.discourse-cdn.com/free1/user_avatar/precice.discourse.group/fsimonis/32/6_2.png) [@fsimonis](https://precice.discourse.group/u/fsimonis)\
**Post date:** [September 23, 2019, 3:00pm UTC](https://precice.discourse.group/t/how-do-i-start-a-coupled-simulation-with-precice/18/2 "2019-09-23T15:00:54Z")

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In order to start a coupled simulation, you can execute the (adapted) participants normally, as you would execute them for a non-coupled simulation. “Adapted” means either that the solver is modified to call the preCICE library, or that it loads a separate “preCICE adapter” at runtime. Often it is helpful to just start the simulations in different terminals.

Please note that that the solvers call preCICE (as it is a library) and not the opposite. There is no “preCICE executable” required to start the simulation.