SYNTAX
------

C Syntax
^^^^^^^^

.. code-block:: c

    int MPI_Comm_split(MPI_Comm comm, int color, int key, MPI_Comm*
        newcomm)

Fortran Syntax
^^^^^^^^^^^^^^

.. code-block:: fortran

    USE MPI
    ! or the older form: INCLUDE 'mpif.h'
    MPI_COMM_SPLIT(COMM, COLOR, KEY, NEWCOMM, IERROR)
    	INTEGER COMM, COLOR, KEY, NEWCOMM, IERROR

Fortran 2008 Syntax
^^^^^^^^^^^^^^^^^^^

.. code-block:: fortran

    USE mpi_f08
    MPI_Comm_split(comm, color, key, newcomm, ierror)
    	TYPE(MPI_Comm), INTENT(IN) :: comm
    	INTEGER, INTENT(IN) :: color, key
    	TYPE(MPI_Comm), INTENT(OUT) :: newcomm
    	INTEGER, OPTIONAL, INTENT(OUT) :: ierror
