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Posted to issues@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/11/30 05:39:31 UTC
[GitHub] [incubator-mxnet] harshitshrma opened a new issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
harshitshrma opened a new issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597
Hi all,
I am trying to load vgg16 pre-trained model I download from the mxnet website:
http://data.mxnet.io/models/imagenet/vgg/vgg16-0000.params
http://data.mxnet.io/models/imagenet/vgg/vgg16-symbol.json
However, I keep getting the following error at line **(symbol, argParams, auxParams) = mx.model.load_checkpoint('vgg16', 0):**
mxnet.base.MXNetError: MXNetError: Failed loading Op prob of type SoftmaxOutput: [20:27:58] /home/user/mxnet/3rdparty/tvm/nnvm/src/core/op.cc:73: Check failed: op != nullptr: Operator SoftmaxOutput is not registered**
Can someone help me fix this issue?
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[GitHub] [incubator-mxnet] samskalicky commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
samskalicky commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736048947
@harshitshrma it looks like after the clone you build immediately. This means you're building MXNet's master branch, rather than 1.7. Did you mean to do a `git checkout v1.7.0` after the clone?
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[GitHub] [incubator-mxnet] samskalicky commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
samskalicky commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736001432
```
mxnet.base.MXNetError: MXNetError: Failed loading Op prob of type SoftmaxOutput: [11:21:10] /home/harshit/mxnet/3rdparty/tvm/nnvm/src/core/op.cc:73: Check failed: op != nullptr: Operator SoftmaxOutput is not registered
```
This error means the operator isnt registered. How are you building MXnet from source. Can you give step by step instructions to reproduce (ie. clone, make/cmake, PYTHONPATH, etc)
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[GitHub] [incubator-mxnet] harshitshrma commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
harshitshrma commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736009276
@samskalicky sure. These are the steps I followed.
```
$ git clone --recursive https://github.com/apache/incubator-mxnet.git mxnet
$ cp config/linux_gpu.cmake config.cmake
$ mkdir build
$ cd build
$ cmake ..
$ cmake --build . --parallel 4
```
I haven't tried with the pre-built pip wheel yet. But I did try a few older versions of MXNet building them from source and got the same error.
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[GitHub] [incubator-mxnet] github-actions[bot] commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
github-actions[bot] commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-735559304
Welcome to Apache MXNet (incubating)! We are on a mission to democratize AI, and we are glad that you are contributing to it by opening this issue.
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[GitHub] [incubator-mxnet] harshitshrma commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
harshitshrma commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736762986
@samskalicky Sure, I'll try that. Thanks again.
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[GitHub] [incubator-mxnet] harshitshrma commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
harshitshrma commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-735991470
@samskalicky I built from the source and then created a sym-link mxnet to my virtual environment.
I am getting the error while loading the model from the disk:
Code:
import mxnet as mx
(symbol, argParams, auxParams) = mx.model.load_checkpoint("vgg16", 0)
Error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/harshit/.virtualenvs/dl4cv/lib/python3.8/site-packages/mxnet/model.py", line 262, in load_checkpoint
symbol = sym.load('%s-symbol.json' % prefix)
File "/home/harshit/.virtualenvs/dl4cv/lib/python3.8/site-packages/mxnet/symbol/symbol.py", line 2820, in load
check_call(_LIB.MXSymbolCreateFromFile(c_str(fname), ctypes.byref(handle)))
File "/home/harshit/.virtualenvs/dl4cv/lib/python3.8/site-packages/mxnet/base.py", line 246, in check_call
raise get_last_ffi_error()
mxnet.base.MXNetError: MXNetError: Failed loading Op prob of type SoftmaxOutput: [11:21:10] /home/harshit/mxnet/3rdparty/tvm/nnvm/src/core/op.cc:73: Check failed: op != nullptr: Operator SoftmaxOutput is not registered
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[GitHub] [incubator-mxnet] samskalicky commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
samskalicky commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736243981
Cool, thanks for the update. We added support for CUDA 11 in v1.8.x branch, you can try that one out if you need a newer version of CUDA.
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[GitHub] [incubator-mxnet] harshitshrma closed issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
harshitshrma closed issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597
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[GitHub] [incubator-mxnet] samskalicky edited a comment on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
samskalicky edited a comment on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736001432
```
mxnet.base.MXNetError: MXNetError: Failed loading Op prob of type SoftmaxOutput: [11:21:10] /home/harshit/mxnet/3rdparty/tvm/nnvm/src/core/op.cc:73: Check failed: op != nullptr: Operator SoftmaxOutput is not registered
```
This error means the operator isnt registered. How are you building MXnet from source. Can you give step by step instructions to reproduce (ie. clone, make/cmake, PYTHONPATH, etc)
Is this error unique to your custom build? or does it fail when you use the publicly available pre-built pip wheels too?
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[GitHub] [incubator-mxnet] samskalicky commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
samskalicky commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-735938683
@harshitshrma can you list the step-by-step instructions to reproduce? (ie. did you build from source, or install from pip wheel, exact code to load the model, etc..)
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[GitHub] [incubator-mxnet] harshitshrma edited a comment on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
harshitshrma edited a comment on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-735991470
@samskalicky I built from the source and then created a sym-link `mxnet` to my virtual environment on Ubuntu 20.04.
I am getting the error while loading vgg16 from disk using the provided weight and symbol files:
Code:
```python
import mxnet as mx
(symbol, argParams, auxParams) = mx.model.load_checkpoint("vgg16", 0)
```
Error:
```
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/harshit/.virtualenvs/dl4cv/lib/python3.8/site-packages/mxnet/model.py", line 262, in load_checkpoint
symbol = sym.load('%s-symbol.json' % prefix)
File "/home/harshit/.virtualenvs/dl4cv/lib/python3.8/site-packages/mxnet/symbol/symbol.py", line 2820, in load
check_call(_LIB.MXSymbolCreateFromFile(c_str(fname), ctypes.byref(handle)))
File "/home/harshit/.virtualenvs/dl4cv/lib/python3.8/site-packages/mxnet/base.py", line 246, in check_call
raise get_last_ffi_error()
mxnet.base.MXNetError: MXNetError: Failed loading Op prob of type SoftmaxOutput: [11:21:10] /home/harshit/mxnet/3rdparty/tvm/nnvm/src/core/op.cc:73: Check failed: op != nullptr: Operator SoftmaxOutput is not registered
```
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[GitHub] [incubator-mxnet] harshitshrma commented on issue #19597: Unable to load vgg16 using mx.model.load_checkpoint
Posted by GitBox <gi...@apache.org>.
harshitshrma commented on issue #19597:
URL: https://github.com/apache/incubator-mxnet/issues/19597#issuecomment-736220585
@samskalicky Thanks a lot. You're right. I had forgotten to checkout v1.7.0.
It works now (though I had to downgrade cuda toolkit from version 11.1 to 10.2).
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