File write takes long time in FSI simulation.
If the file size is large, it will obviously take some time to write. However, this also depends on the machine configuration. So, please check your machine configuration.
If it's taking a significant amount of time to write the results files, try to minimize the size of the results files.
If it is taking a lot of time to interrupt, it completes the current time step and then stops. Therefore, it may take some time to stop.
For more details, please refer to the document below: