new_contents: # coding: utf-8
  
  """ Test the MPI pool """
  
  from __future__ import division, print_function
  
  __author__ = "adrn <adrn@astro.columbia.edu>"
  
  # Standard library
  import os, sys
  import logging
  
  # Third-party
  import astropy.units as u
  from emcee.utils import MPIPool
  import numpy as np
  
  def test_function(arr):
      return 0.
  
  def main():
      Npool = 4
      x = [np.random.random(25,10,6) for ii in range(Npool)]
  
      pool = MPIPool()
      pool.map(test_function, )
  
  if __name__ == "__main__":
      main()
subject: test mpi stuff