matlab.engine, Python2.7, matlab 2018 segfault error

Question

ehsan ahmadi 2018-7-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/409759-matlab-engine-python2-7-matlab-2018-segfault-error

回答： Nagarjuna Manchineni 2018-7-13

I am trying to import matlab.engine in my python code. I get the following error:

import matlab.engine File "/usr/lib/python2.7/site-packages/matlab/engine/__init__.py", line 62, in module 'MathWorks Technical Support for assistance: %s' % e) EnvironmentError: Please reinstall MATLAB Engine for Python or contact MathWorks Technical Support for assistance: /lib64/libstdc++.so.6: version `CXXABI_1.3.9' not found (required by /usr/local/software/matlab2018/extern/engines/python/dist/matlab/engine/glnxa64/matlabengineforpython2_7.so)

If I move that "import matlab.engine" to the first line I get the following error:

Process finished with exit code 139 (interrupted by signal 11: SIGSEGV)

OS: redhat

python: python.2.7.5 (not installed by anaconda)

matlab: MATLAB2018a

Python path: /usr/bin/python2.7

matlab.engine path: /usr/local/software/matlab2018/extern/engines/python/dist/matlab/engine/glnxa64/matlabengineforpython2_7.so

What I already tested:

1. Reinstalling the matlab.engine using the same python as I am compiling

2. renaming the libstdc++.so.6, so the matlab finds the system libstdc++ library

3. Adding the following line to my .bashrc file: alias matlab='LD_PRELOAD=/usr/lib64/libstdc++.so.6.0.19 /usr/local/software/matlab2018/bin/matlab -desktop'

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Nagarjuna Manchineni 2018-7-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/409759-matlab-engine-python2-7-matlab-2018-segfault-error#answer_328754

Ehsan, I see that you have already tried forcing a different version of libstdc++.

The issue might also occur because of the the default GCC version shipped with the operating system (eg.. Ubuntu 14.04 which is GCC 4.8.2). As of MATLAB R2018a, MATLAB external interfaces required to use GCC 6.3.* on Linux distributions . If the G++ libraries are upgraded to the required version, the dependencies will be resolved and the library can be imported into Python as normal.

Try upgrading the gcc version on your respective Linux distribution and see if all the dependencies are resolved.

Also, please note that upgrading gcc might effect other applications running on the computer.