Quoting from COMMAND LINE OPTIONS
No content
There is no meaningful content in this file because Open MPI was either:
• Built without PRRTE support.
• Built with a PRRTE that was too old to include machine-readable documentation that could be incorporated into Open MPI’s documentation.
If you build Open MPI with a newer version of PRRTE (and have the Sphinx tool available when you run Open MPI’s configure command), you should get more meaningful documentation
here.
Hence, there is no documentation for this section.
Sorry!
This is not helpful for users who want to know what the command line options are.