Installation Problems on Ubuntu 16.04.1 LTS

[ilkerkesen]

Hi all,

I am trying to install DyNet on Ubuntu 16.04.1 LTS by following instructions on the official documentation. However, I am facing with some problems. Thanks to this issue, I was able to setup DyNet on my server. However, when I try to run the example mentioned in the docs, I get a Segmentation Fault (core dumped) error. I'm using the current master branch.

There it is, how I created Makefile:

CC=gcc-4.9 CXX=g++-5 cmake .. -DEIGEN3_INCLUDE_DIR=/usr/local/include/eigen3 -DBACKEND=cuda -DBOOST_ROOT:PATHNAME=/usr/include/boost -DBoost_LIBRARY_DIRS:FILEPATH=/usr/lib/x86_64-linux-gnu -DBoost_NO_BOOST_CMAKE=TRUE -DBoost_NO_SYSTEM_PATHS=TRUE -DPYTHON=which python`

This gist includes make.log file and train_xor example output:

https://gist.github.com/ilkerkesen/f3a13def6c9088ba9338cbd105d1bc7e

I checked the other examples and they all ended up with a segmentation fault. Thanks in advance.

[neubig]

It looks like @pmichel31415 also complained of segfaults in the upstream issue, so maybe this is the same problem? If so, it would be very nice to get this resolved.

[neubig]

Is this the same problem as upstream having two versions of boost installed?
#282

[ilkerkesen]

Sorry for the late response. I don't think this is the same problem, because I couldn't have find libboost in the paths you mentioned. I just followed the installation guide and installed libboost via apt. My libboost version is 1.58.0.

[neubig]

@ilkerkesen OK, could you please remove the CC=gcc-4.9 CXX=g++-5 variable declaration, and do a clean build following these instructions?

http://dynet.readthedocs.io/en/latest/install.html#debugging-build-problems

If you can send the make.log file we might be able to debug your original problem.

[ilkerkesen]

Here is the new make log. Thanks a lot for your concern.

[neubig]

Hmm, I still strongly suspect that you have two different versions of boost installed on your machine. Does DyNet compile without any of the Boost flags? Try removing -DBOOST_ROOT:PATHNAME=/usr/include/boost -DBoost_LIBRARY_DIRS:FILEPATH=/usr/lib/x86_64-linux-gnu -DBoost_NO_BOOST_CMAKE=TRUE -DBoost_NO_SYSTEM_PATHS=TRUE and see if compilation works.

[ilkerkesen]

I've just updated the gist. Still I've a compilation error.

[ilkerkesen]

I think I've solved the issue, this is the output of train_xor:

https://gist.github.com/ilkerkesen/1105d1fa319cbd9d2ec9f5f9487a7e99

What I did is, I just compared my compilation process with Travis CI building. Ubuntu versions differ. So do the library versions. I've set CC/CXX variables to gcc-5/g++-5 (in Travis configuration, both of them same, 4.8).

I've also tried to run train_rnnlm example and now I am able to run it with no problem.

[neubig]

Glad to hear it was resolved!