> For the complete documentation index, see [llms.txt](https://docs.meterian.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.meterian.io/the-client/using-client-ci-cd/concurrent-mode.md).

# Concurrent mode

If you are running your build process on the same CI machine, sharing between different builds the same environment, you will need to run the client in concurrent mode using the command line parameter `--concurrent-mode`. In this mode the client will allow different builds to run concurrently on the same environment. Please note that in concurrent mode you cannot execute two phases builds