File info:
  of groups:     1
  of variables:  4
  of attributes: 0
  of meshes:     0
  time steps:    0 - 0
  bp version:    3
  statistics:    Min / Max / Avg / Std_dev

  integer  NX                  scalar = 10
  integer  NY                  scalar = 100
  double   var_double_2Darray  {10, 100} = 0 / 49.99 / null  / null 
  integer  var_int_1Darray     {10} = 0 / 49 / null  / null 
