haojin2 commented on issue #11509: Hanging flaky test test_operator.test_norm @ 
Python 3: GPU Win
URL: 
https://github.com/apache/incubator-mxnet/issues/11509#issuecomment-408742618
 
 
   
http://jenkins.mxnet-ci.amazon-ml.com/blue/organizations/jenkins/incubator-mxnet/detail/PR-11482/22/pipeline/858
   ```
   ======================================================================
   
   FAIL: test_operator_gpu.test_norm
   
   ----------------------------------------------------------------------
   
   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 "/usr/local/lib/python3.5/dist-packages/nose/util.py", line 620, in 
newfunc
   
       return func(*arg, **kw)
   
     File "/work/mxnet/tests/python/gpu/../unittest/common.py", line 172, in 
test_new
   
       orig_test(*args, **kwargs)
   
     File "/work/mxnet/tests/python/gpu/../unittest/test_ndarray.py", line 
1324, in test_norm
   
       mx.test_utils.assert_almost_equal(npy_out, mx_out.asnumpy())
   
     File "/work/mxnet/python/mxnet/test_utils.py", line 493, in 
assert_almost_equal
   
       raise AssertionError(msg)
   
   AssertionError: 
   
   Items are not equal:
   
   Error 200000.015625 exceeds tolerance rtol=0.000010, atol=0.000000.  
Location of maximum error:(0, 0, 0, 0), a=0.567434, b=-0.567434
   
    a: array([[[[0.56743413, 0.3482769 ],
   
            [0.76402813, 0.21444368],
   
            [0.26532394, 0.35806283],...
   
    b: array([[[[-0.56743413, -0.3482769 ],
   
            [-0.76402813, -0.21444368],
   
            [-0.26532394, -0.35806283],...
   
   -------------------- >> begin captured logging << --------------------
   
   common: INFO: Setting test np/mx/python random seeds, use 
MXNET_TEST_SEED=1479125905 to reproduce.
   
   --------------------- >> end captured logging << ---------------------
   ```

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