mgiessing opened a new issue #20885:
URL: https://github.com/apache/incubator-mxnet/issues/20885
## Description
When I build mxnet python3 wheel for ppc64le architecture everything seems
to work in the build container, but if I install the wheel somewhere else
(besides the build container) it throws errors about not finding libraries.
Usually those issues are handled via `auditwheel repair --plat ...` but it
seems like the packaging is still wrong for mxnet.
### Error Message
```
>>> import mxnet
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.7/site-packages/mxnet/__init__.py", line 23,
in <module>
from .context import Context, current_context, cpu, gpu, cpu_pinned
File "/usr/local/lib/python3.7/site-packages/mxnet/context.py", line 23,
in <module>
from .base import classproperty, with_metaclass,
_MXClassPropertyMetaClass
File "/usr/local/lib/python3.7/site-packages/mxnet/base.py", line 356, in
<module>
_LIB = _load_lib()
File "/usr/local/lib/python3.7/site-packages/mxnet/base.py", line 341, in
_load_lib
lib_path = libinfo.find_lib_path()
File "/usr/local/lib/python3.7/site-packages/mxnet/libinfo.py", line 73,
in find_lib_path
'List of candidates:\n' + str('\n'.join(dll_path)))
RuntimeError: Cannot find the MXNet library.
List of candidates:
/usr/local/lib/python3.7/site-packages/mxnet/libmxnet.so
/usr/local/lib/python3.7/site-packages/mxnet/../../lib/libmxnet.so
/usr/local/lib/python3.7/site-packages/mxnet/../../build/libmxnet.so
../../../libmxnet.so
```
This issue happens if i install the wheel in a `python:3.7` container via
`pip3 install
mxnet-1.9.0-py3-none-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl `
## To Reproduce
### 1 Start build container:
`docker run -ti --rm quay.io/pypa/manylinux2014_ppc64le`
### 2 Build script:
```
# prereqs
yum install -y epel-release centos-release-scl
yum install -y git make ninja-build automake autoconf libtool
protobuf-compiler protobuf-devel atlas-devel \
openblas-devel lapack-devel opencv-devel openssl-devel zeromq-devel
git clone -b 1.9.0 --recursive https://github.com/apache/incubator-mxnet.git
mxnet && cd mxnet
# build library
mkdir build && cd build
cmake \
-DUSE_CUDA=0 \
-DBLAS=open \
-DUSE_OPENCV=1 \
-GNinja \
..
ninja install
# build python binding
export MXNET_LIBRARY_PATH=/mxnet/build/libmxnet.so
cd /mxnet/python
/opt/python/cp37-cp37m/bin/python3 setup.py bdist_wheel
auditwheel repair --plat manylinux2014_ppc64le
dist/mxnet-1.9.0-py3-none-any.whl
```
## What have you tried to solve it?
1. Try to deal with the packaging, because libmxnet.so is clearly there, but
in another path:
```
root@ba0e68cb213a:~# find /usr -name "libmxnet.so"
/usr/local/mxnet/libmxnet.so
```
## Environment
I'm building on manylinux2014_ppc64le and using it on "regular"
docker.io/python:3.7 container
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