code: def test_distributed_eval():
      try:
          str_out = mpiexec_execute(__file__, ["-n", "2"])
      except AssertionError:
          print(str_out)
          raise
  
imports: import os
  import subprocess
  import sys
  import numpy
  import cntk
label_desc: Use image node_id 2 for calling a global function with example usage: test_distributed_eval() without return types