Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/proj/radl_extra/users/bbeckman/noc_m5/src/python/m5/main.py", line 359, in main
    exec filecode in scope
  File "tests/run.py", line 70, in <module>
    execfile(joinpath(tests_root, 'configs', test_filename + '.py'))
  File "tests/configs/o3-timing.py", line 40, in <module>
    cpu = DerivO3CPU(cpu_id=0)
NameError: name 'DerivO3CPU' is not defined