# 5. Open MPI-specific features

Open MPI has multiple features that are above and beyond what is specified in the MPI Standard.

This section does not list all Open MPI features that are not specified in the official MPI Standard, but does list two major categories of Open MPI-specific features.

- 5.1. Open MPI profiling interface
- 5.2. Open MPI extensions
- 5.3. User-Level Fault Mitigation (ULFM)
- 5.4. Open MPI Java bindings