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Posted to issues@mxnet.apache.org by GitBox <gi...@apache.org> on 2021/04/16 02:43:11 UTC
[GitHub] [incubator-mxnet] DNXie opened a new issue #20183: `mxnet.ndarray.signsgd_update` crashes(segfault) when `grad` is an empty tensor
DNXie opened a new issue #20183:
URL: https://github.com/apache/incubator-mxnet/issues/20183
## Description
`mxnet.ndarray.signsgd_update` and `mxnet.ndarray.op.signsgd_update` crashes(segfault) when `grad` is an empty tensor
### Error Message
~~~python
Fatal Error: Segmentation fault
Stack trace:
Segmentation fault (core dumped)
~~~
## To Reproduce
Check out the [gist](https://colab.research.google.com/drive/1LSN2Jha5NuM46C_N0iNnqaa7aUyNRUph?usp=sharing)
~~~python
import numpy as np
import mxnet
weight=mxnet.nd.ones((1,))
grad=mxnet.nd.array(np.ones((0,)))
mxnet.ndarray.signsgd_update(weight=weight, grad=grad, lr=0.9)
~~~
## Environment
OS: ubuntu 18.04
Python: 3.7.6
pip: 20.0.2
numpy: 1.18.5
mxnet: 1.7.0
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