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.