common/unit/nbz,nfld,nin,nsav,nschef,nav,ndes1,nm1,ndiag,ndpout,
     1            nemit,nfield,nhist,nnout,nout1,nout2,nsemit,nstat,
     2            ntrw,nuch,nsnap,nback,nback1,ndes2,nm2,nimp,ninput,
     3            npois