new_contents: 
  
  def parallel_env_sanity(np =4):
      from petsc4py import PETSc
      size = PETSc.Comm.getSize(PETSc.COMM_WORLD)
      rank = PETSc.Comm.getRank(PETSc.COMM_WORLD)
      if rank == 0:
          print size
  
  
  if __name__=="__main__":
      import sys
      if len(sys.argv)>1:
          from pyclaw.util import _info_from_argv
          args, kwargs = _info_from_argv(sys.argv)
          parallel_env_sanity(*args,**kwargs)
      else: parallel_env_sanity()
  
  
subject: add script for parallel test sanity