int sync();
int seek(MPI_Offset offset, int whence);
int seek_shared(MPI_Offset offset, int whence);
int set_view(MPI_Offset disp, MPI_Datatype etype, MPI_Datatype filetype, const char* datarep, const Info* info);
int sync();
int seek(MPI_Offset offset, int whence);
int seek_shared(MPI_Offset offset, int whence);
int set_view(MPI_Offset disp, MPI_Datatype etype, MPI_Datatype filetype, const char* datarep, const Info* info);