#=========================== discretization ===================================
GRID
  TYPE structured
  NXYZ 1 1 3
  ORIGIN 1.d0 2.d0 3.d0
  DXYZ
    1.3d0
    0.7d0
    0.3d0 0.35d0 0.37d0 ! sum = 1.02d0
  /
END

