[GitHub] roywei commented on issue #11685: test_executor.test_bind has fixed seed that can mask flakiness

[GitBox <gi...@apache.org>]

roywei commented on issue #11685: test_executor.test_bind has fixed seed that can mask flakiness
URL: https://github.com/apache/incubator-mxnet/issues/11685#issuecomment-409719254
 
 
   after change with #11978 , this test still fails with:
   ```
   MXNET_TEST_SEED=1875642038 nosetests --logging-level=DEBUG --verbose -s test_executor.py:test_bind
   ```
   
   error message:
   ```
   ======================================================================
   FAIL: test_executor.test_bind
   ----------------------------------------------------------------------
   Traceback (most recent call last):
     File "/usr/local/lib/python3.5/dist-packages/nose/case.py", line 198, in runTest
       self.test(*self.arg)
     File "/home/ubuntu/roy/incubator-mxnet/tests/python/unittest/common.py", line 172, in test_new
       orig_test(*args, **kwargs)
     File "/home/ubuntu/roy/incubator-mxnet/tests/python/unittest/test_executor.py", line 111, in test_bind
       check_bind(True)
     File "/home/ubuntu/roy/incubator-mxnet/tests/python/unittest/test_executor.py", line 102, in check_bind
       sf=mx.symbol.maximum)
     File "/home/ubuntu/roy/incubator-mxnet/tests/python/unittest/test_executor.py", line 71, in check_bind_with_uniform
       assert_almost_equal(lhs_grad.asnumpy(), lhs_grad2, rtol=1e-5, atol=1e-5)
     File "/usr/local/lib/python3.5/dist-packages/mxnet/test_utils.py", line 493, in assert_almost_equal
       raise AssertionError(msg)
   AssertionError: 
   Items are not equal:
   Error 100000.000000 exceeds tolerance rtol=0.000010, atol=0.000010.  Location of maximum error:(5, 17), a=1.000000, b=0.000000
    a: array([[0., 0., 1., ..., 0., 0., 1.],
          [0., 1., 1., ..., 0., 0., 0.],
          [1., 1., 0., ..., 1., 0., 1.],...
    b: array([[0., 0., 1., ..., 0., 0., 1.],
          [0., 1., 1., ..., 0., 0., 0.],
          [1., 1., 0., ..., 1., 0., 1.],...
   -------------------- >> begin captured logging << --------------------
   common: INFO: Setting module np/mx/python random seeds, use MXNET_MODULE_SEED=1585133920 to reproduce.
   common: WARNING: *** test-level seed set: all "@with_seed()" tests run deterministically ***
   common: INFO: Setting test np/mx/python random seeds, use MXNET_TEST_SEED=1875642038 to reproduce.
   --------------------- >> end captured logging << ---------------------
   
   ----------------------------------------------------------------------
   Ran 1 test in 0.033s
   
   FAILED (failures=1)
   ```

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