new_contents: import itertools
  
  
  num_rows = 1000
  num_cols = 20
  n_steps = 200
  
  base_str = ' '.join([
    'python runtime_scripting.py',
    '--num_clusters %s',
    '--num_rows %s' % num_rows,
    '--num_cols %s' % num_cols,
    '--num_splits %s',
    '--n_steps %s' % n_steps,
    '-do_remote >>out 2>>err &',
    ])
  
  num_clusters_list = [5, 10, 20, 25, 40]
  num_splits_list = [1, 2, 4]
  for num_clusters, num_splits \
      in itertools.product(num_clusters_list, num_splits_list):
    this_base_str = base_str % (num_clusters, num_splits)
    print this_base_str
  
subject: add script to generate lines to execute