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 4.12, page ).
MPI-Standard for MARMOT