9.6.7. MPI_Offset Type
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MPI_Offset is an integer type of size sufficient to represent the size (in bytes) of the largest file supported by MPI. Displacements and offsets are always specified as values of type MPI_Offset.
In Fortran, the corresponding integer is an integer of kind MPI_OFFSET_KIND, defined in mpif.h and the mpi module.
In Fortran 77 environments that do not support KIND parameters, MPI_Offset arguments should be declared as an INTEGER of suitable size. The language interoperability implications for MPI_Offset are similar to those for addresses (see Section Language Interoperability ).
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MPI-2.0 of July 18, 1997
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