lebeg commented on issue #12767: Flaky test: 
test_gluon_gpu.test_slice_batchnorm_reshape_batchnorm
URL: 
https://github.com/apache/incubator-mxnet/issues/12767#issuecomment-428255327
 
 
   Another consecutive run failed on master CI:
   
http://jenkins.mxnet-ci.amazon-ml.com/blue/organizations/jenkins/incubator-mxnet/detail/master/1728/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 346, in 
test_Deconvolution
       check_Deconvolution_training(stype)
     File "/work/mxnet/tests/python/mkl/test_mkldnn.py", line 342, 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 915, 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 3.121914 exceeds tolerance rtol=0.160000, atol=0.000100.  Location of 
maximum error:(2, 1, 5), a=-0.000381, b=-0.001386
    NUMERICAL_data: array([[[-0.6184697 , -0.50860643, -0.6415248 , ..., 
-0.7978529 ,
            -0.8801222 , -0.7802248 ],
           [-0.26806593, -0.1953423 , -0.14332533, ..., -0.17287433,...
    BACKWARD_data: array([[[-0.6174789 , -0.5086705 , -0.6417394 , ..., 
-0.79945517,
            -0.88075024, -0.77997565],
           [-0.26776323, -0.19459067, -0.14422962, ..., -0.1742437 ,...
   ```

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