NAME

       ompi_info - Display information about the Open MPI installation

SYNOPSIS

       ompi_info [options]

DESCRIPTION

       ompi_info  provides  detailed information about the Open MPI installation.  It can be useful for at least
       three common scenarios:

       1. Checking local configuration and seeing how Open MPI was installed.

       2.  Submitting  bug  reports  /  help  requests  to  the  Open  MPI   community   (see   http://www.open-
       mpi.org/community/help/)

       3. Seeing a list of installed Open MPI plugins and querying what MCA parameters they support.

OPTIONS

       ompi_info accepts the following options:

       -a|--all
               Show all configuration options and MCA parameters

       --arch  Show architecture Open MPI was compiled on

       -c|--config
               Show configuration options

       -gmca|--gmca <param> <value>
               Pass global MCA parameters that are applicable to all contexts.

       -h|--help
               Shows help / usage message

       --hostname
               Show the hostname that Open MPI was configured and built on

       --internal
               Show internal MCA parameters (not meant to be modified by users)

       -mca|--mca <param> <value>
               Pass  context-specific  MCA parameters; they are considered global if --gmca is not used and only
               one context is specified.

       --param <type> <component>
               Show MCA parameters.  The first parameter is the type of the component  to  display;  the  second
               parameter  is  the  specific  component  to  display  (or the keyword "all", meaning "display all
               components of this type").

       --parsable
               When used in conjunction with other parameters, the output is  displayed  in  a  machine-parsable
               format --parseable Synonym for --parsable

       --path <type>
               Show  paths that Open MPI was configured with.  Accepts the following parameters: prefix, bindir,
               libdir, incdir, pkglibdir, sysconfdir.

       --pretty
               When used in conjunction with other parameters, the output is displayed in  'prettyprint'  format
               (default)

       -v|--version <component> <scope>
               Show  version  of  Open MPI or a component.  <component> can be the keywords "ompi" or "all", the
               name of a framework (e.g., "coll" shows all components in the coll framework), or the name  of  a
               specific  component  (e.g., "pls:rsh" shows the information from the rsh PLS component).  <scope>
               can be one of: full, major, minor, release, greek, svn.

EXAMPLES

       ompi_info
           Show the default output of options  and  listing  of  installed  components  in  a  human-readable  /
           prettyprint format.

       ompi_info --parsable
           Show the default output of options and listing of installed components in a machine-parsable format.

       ompi_info --param btl openib
           Show the MCA parameters of the "openib" BTL component in a human-readable / prettyprint format.

       ompi_info --param btl openib --parsable
           Show the MCA parameters of the "openib" BTL component in a machine-parsable format.

       ompi_info --path bindir
           Show the "bindir" that Open MPI was configured with.

       ompi_info --version ompi full --parsable
           Show the full version numbers of Open MPI (including the ORTE and OPAL version numbers) in a machine-
           readable format.

       ompi_info --version btl major
           Show the major version number of all BTL components in a prettyprint format.

       ompi_info --version btl:tcp minor
           Show the minor version number of the TCP BTL component in a prettyprint format.

       ompi_info --all
           Show all information about the Open MPI installation, including all components that can be found, the
           MCA parameters that they support, versions of Open MPI and the components, etc.

AUTHORS

       The Open MPI maintainers -- see http://www.openmpi.org/ or the file AUTHORS.

       This  manual  page  was  originally  contributed by Dirk Eddelbuettel <edd@debian.org>, one of the Debian
       GNU/Linux maintainers for Open MPI, and may be used by others.