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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2019/06/02 15:31:30 UTC
[GitHub] [incubator-mxnet] starimpact opened a new issue #15125: a big bug
nan for sum of some fp16 ndarray
starimpact opened a new issue #15125: a big bug nan for sum of some fp16 ndarray
URL: https://github.com/apache/incubator-mxnet/issues/15125
```python
136 2019-06-02 23:26:54,499-root-<type 'numpy.float16'>
137 2019-06-02 23:26:54,499-root-
138 [[[ 4022. 10432. 13904. ]
139 [ 6360. 10128. 12752. ]
140 [ 8616. 10536. 12200. ]]
141
142 [[ -5452. 1838. 5432. ]
143 [ -2684. 1774. 4476. ]
144 [ 198.625 2700. 4052. ]]
145
146 [[ -8264. -1236. 2524. ]
147 [ -5188. -880.5 1629. ]
148 [ -2280. 151.875 1655. ]]]
149 <NDArray 3x3x3 @gpu(0)>
150 2019-06-02 23:26:54,500-root-
151 [ nan]
152 <NDArray 1 @gpu(0)>
```
do sum on some float16 ndarray will result in nan!
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