# 4. Building and installing Open MPI

- 4.1. Quick start: Installing Open MPI
- 4.2. Downloading Open MPI
- 4.3. Supported Systems
- 4.4. Definitions
- 4.5. Filesystem requirements
- 4.6. VPATH builds
- 4.7. Specifying compilers and flags
- 4.8. Required support libraries
- 4.9. `configure` command line options
- 4.10. `configure` output summary
- 4.11. `make` targets
- 4.12. Installation location
- 4.13. Installing custom components
- 4.14. Updating or upgrading an Open MPI installation
- 4.15. Advice for packagers
- 4.16. Advice for System Administrators