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MPI_Register_datarep(3)               MPI              MPI_Register_datarep(3)


NAME

       MPI_Register_datarep -  Register functions for user-defined data
       representations


SYNOPSIS

       int MPI_Register_datarep(MPICH2_CONST char *name,
                              MPI_Datarep_conversion_function *read_conv_fn,
                              MPI_Datarep_conversion_function *write_conv_fn,
                              MPI_Datarep_extent_function *extent_fn,
                              void *state)


INPUT PARAMETERS

       name   - data representation name (string)
       read_conv_fn
              - function invoked to convert from file representation to native
              representation (function)
       write_conv_fn
              - function invoked to convert from native representation to file
              representation (function)
       extent_fn
              - function invoked to get the exted of a datatype as represented
              in the file (function)
       extra_state
              - pointer to extra state that is passed to each of the three
              functions


NOTES

       This function allows the user to provide routines to convert data from
       an external representation, used within a file, and the native
       representation, used within the CPU.  There is one predefined data
       representation, external32 .  Please consult the MPI-2 standard for
       details on this function.


NOTES FOR FORTRAN

       All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have
       an additional argument ierr at the end of the argument list.  ierr is
       an integer and has the same meaning as the return value of the routine
       in C.  In Fortran, MPI routines are subroutines, and are invoked with
       the call statement.

       All MPI objects (e.g., MPI_Datatype , MPI_Comm ) are of type INTEGER in
       Fortran.


LOCATION

       mpi-io/register_datarep.c

                                   7/3/2012            MPI_Register_datarep(3)

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