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.. highlight:: c
.. role:: red
.. role:: green
.. role:: param


.. _mpi__communicator__split:

mpi::communicator::split
========================

*#include <mpi/communicator.hpp>*



**Synopsis**

 .. rst-class:: cppsynopsis

       | :ref:`communicator <mpi__communicator>` :red:`split` (int :param:`color`, int :param:`key` = 0) const











Returns
^^^^^^^

If mpi::has_env is true, return the split `MPI_Comm` object wrapped in a new mpi::communicator, otherwise
 return a default constructed mpi::communicator.