aaronmarkham opened a new issue #12579: test_mkldnn.test_Deconvolution failed 
in CI
URL: https://github.com/apache/incubator-mxnet/issues/12579
 
 
   ## Description
   Flakey.
   
http://jenkins.mxnet-ci.amazon-ml.com/blue/organizations/jenkins/incubator-mxnet/detail/PR-12504/7/pipeline
   
   ```
   ======================================================================
   
   FAIL: test_mkldnn.test_Deconvolution
   
   ----------------------------------------------------------------------
   
   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 "/work/mxnet/tests/python/mkl/test_mkldnn.py", line 347, in 
test_Deconvolution
   
       check_Deconvolution_training(stype)
   
     File "/work/mxnet/tests/python/mkl/test_mkldnn.py", line 343, in 
check_Deconvolution_training
   
       check_numeric_gradient(test, in_location, numeric_eps=1e-2, rtol=0.16, 
atol=1e-4)
   
     File "/work/mxnet/python/mxnet/test_utils.py", line 912, in 
check_numeric_gradient
   
       ("NUMERICAL_%s"%name, "BACKWARD_%s"%name))
   
     File "/work/mxnet/python/mxnet/test_utils.py", line 491, in 
assert_almost_equal
   
       raise AssertionError(msg)
   
   AssertionError: 
   
   Items are not equal:
   
   Error 1.512910 exceeds tolerance rtol=0.160000, atol=0.000100.  Location of 
maximum error:(0, 2, 9), a=0.001264, b=0.001867
   
    NUMERICAL_data: array([[[-0.95005035, -0.5466819 , -0.8472204 , ..., 
-0.81636906,
   
            -0.53954124, -0.557071  ],
   
           [-0.76055527, -0.4667163 , -1.1051655 , ..., -0.66776276,...
   
    BACKWARD_data: array([[[-0.94975847, -0.5468061 , -0.8476609 , ..., 
-0.81620246,
   
            -0.53933674, -0.55766964],
   
           [-0.75996923, -0.46629372, -1.1041552 , ..., -0.6681724 ,...
   
   
   
   ```

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