12  34  565                               Size of array: mx  my  mz ...
0   1    2                                No. of procs for each dimen
0   1    1                                Periodic? (1 yes / 0 no)
p   1                                     Stencil type p+0/b1 [width]
a   b   p1  p2                            Names of all grid variables

  mx=mx         nx=nx      nd=nd      sz=sz      iper=iper    pgm=pgm     
myid=def       npr=npr     st=st      en=en       sgp=sgp     egp=egp     
