new options for MPMD

docs/source_docs/references/mpmd.rst

+.. _ReferenceMPMD:
+
 Multiple Program Multiple Data (MPMD)
 =====================================
 
-MFIX-Exa utilizes the AMReX-MPMD interface to send data across to another program or application. In order to enable this feature, the executable has to be built with ``-DMFIX_MPMD = yes``.
-
-Inputs
-------
-
-The following inputs must be preceded by "mfix." and control frequency and the data that will be sent to the other program.
-
-+----------------------+-----------------------------------------------------------------------+-------------+-----------+
-|                      | Description                                                           |   Type      | Default   |
-+======================+=======================================================================+=============+===========+
-| mpmd_int             | Frequency at which data is sent to the other application              |    Int      | -1        |
-|                      | when using MPMD.                                                      |             |           |
-+----------------------+-----------------------------------------------------------------------+-------------+-----------+
-| mpmd_per_approx      | Time period for sending data to the other pipeline (approximate)      |    Real     | -1        |
-|                      | when using MPMD.                                                      |             |           |
-+----------------------+-----------------------------------------------------------------------+-------------+-----------+
-| mpmd_static_mfs      | A list of the names of static multifabs that will be sent             |   String    | None      |
-|                      | only once when using MPMD. Possible values are                        |             |           |
-|                      | "volfrac" and "centroid".                                             |             |           |
-+----------------------+-----------------------------------------------------------------------+-------------+-----------+
-| mpmd_mfs             | A list of the names of  multifabs that will be sent per set frequency |   String    | None      |
-|                      | when using MPMD. Possible values are "ep_g", "vel_g", "T_g"           |             |           |
-|                      | and "X_gk".                                                           |             |           |
-+----------------------+-----------------------------------------------------------------------+-------------+-----------+
+
+The AMReX-MPMD interface is used to send data to another program or application. In order to enable this feature, the executable
+has to be built with ``-DMFIX_MPMD = yes``.
+
+:ref:`Input parameters controling the AMReX-MPMD interface<InputsMPMD>` are defined in the User Guide run-time inputs section.
+
 
 Sample Python Program
 ----------------------
@@ -91,7 +75,7 @@ Receive Once
 Receive Until *End*
 ~~~~~~~~~~~~~~~~~~~
 
-* Receive ``End Flag`` on the python root from the C++ root and broadbast to all python
+* Receive ``End Flag`` on the python root from the C++ root and broadcast to all python
   ranks. If the flag is ``1``, break out of the loop.
 
     .. code-block:: python
@@ -107,7 +91,7 @@ Receive Until *End*
        if end == 1:
            break
 
-* Receive ``Reals`` on the python root from the C++ root and broadbast to all python
+* Receive ``Reals`` on the python root from the C++ root and broadcast to all python
   ranks. Save ``time`` to an array on the python root for plotting.
 
     .. code-block:: python
@@ -212,11 +196,3 @@ Finalize
 
        amr.finalize()
        amr.MPMD_Finalize()
-
-
-
-Limitations
-------------
-
-* Does not work with simulations that require restarts.
-* Cannot be used to send and receive particle data.