MPI_Pack_size(3)

NAME
     MPI_Pack_size - Returns the upper bound on the amount of space needed to
     pack a message

SYNOPSIS
     C:

          #include <mpi.h>

          int MPI_Pack_size ( incount, datatype, comm, size )
          int           incount;
          MPI_Datatype  datatype;
          MPI_Comm      comm;
          int          *size;


     C++:

          #include <mpi.h>

          int Datatype::Pack_size(
          int               incount,
          const Comm&       comm) const


     Fortran:

          INCLUDE "mpif.h" (or USE MPI)

          INTEGER incount, datatype, comm, size,  ierror

          CALL MPI_PACK_SIZE(incount, datatype, comm, size,  ierror)


STANDARDS
     This release implements the MPI 1.2 standard, as documented by the MPI
     Forum in the spring 1997 release of MPI:  A Message Passing Interface
     Standard.

DESCRIPTION
     The MPI_Pack_size routine returns the upper bound on the amount of space
     needed to pack a message.  This routine accepts the following parameters:

     incount   Specifies the count argument to the packing call (integer)

     datatype  Specifies the data type argument to the packing call (handle)

     comm      Specifies the communicator argument to the packing call
               (handle)
     size      Returns the upper bound on the size of the packed message in
               bytes (integer)

     ierror    Specifies the return code value for successful completion,
               which is in MPI_SUCCESS.  MPI_SUCCESS is defined in the mpif.h
               file.