.. _mpi_comm_get_info:


MPI_Comm_get_info
=================

.. include_body

:ref:`MPI_Comm_get_info` |mdash| Retrieves active communicator info hints

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.. include:: ./bindings/mpi_comm_get_info.rst

INPUT PARAMETERS
----------------
* ``comm``: Communicator from which to receive active info hints

OUTPUT PARAMETERS
-----------------
* ``info_used``: New info object returned with all active hints on this communicator.
* ``ierror``: Fortran only: Error status (integer).

DESCRIPTION
-----------

:ref:`MPI_Comm_get_info` returns a new info object containing the hints of the
communicator associated with *comm*. The current setting of all hints
actually used by the system related to this communicator is returned in
*info_used*. If no such hints exist, a handle to a newly created info
object is returned that contains no key/value pair. The user is
responsible for freeing info_used via :ref:`MPI_Info_free`.


ERRORS
------

.. include:: ./ERRORS.rst

.. seealso::
   * :ref:`MPI_Comm_get_info`
   * :ref:`MPI_Info_free`