c++: internal compiler error

[111pontes]

Compiling cisco-ios-xr model bundle exhausts computer memory and ultimately results in error message:

$ make
[  0%] Building CXX object CMakeFiles/ydk_cisco_ios_xr.dir/ydk/models/generated_entity_lookup.cpp.o
c++: internal compiler error: Killed (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions.
CMakeFiles/ydk_cisco_ios_xr.dir/build.make:62: recipe for target 'CMakeFiles/ydk_cisco_ios_xr.dir/ydk/models/generated_entity_lookup.cpp.o' failed
make[2]: *** [CMakeFiles/ydk_cisco_ios_xr.dir/ydk/models/generated_entity_lookup.cpp.o] Error 4
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/ydk_cisco_ios_xr.dir/all' failed
make[1]: *** [CMakeFiles/ydk_cisco_ios_xr.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
$

Core, openconfig and ietf packages compile just fine. System is using:

$ c++ --version
c++ (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ uname -a
Linux ohlone 4.4.0-51-generic #72-Ubuntu SMP Thu Nov 24 18:29:54 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
$ 

[ghost]

Update:

I increased swap size on ubuntu VM to 16G using this guide: https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04

So far the compilation is going ok. I used the below make command which runs the build in 5 parallel jobs:

$ make -j5

[111pontes]

Compiling cisco-ios-xr bundle may require significant memory. The problem is avoided by fragmenting source (hpp and cpp) files. The current fragmentation prototype doesn't guarantee backward compatibility for apps if there's a change in the model. Initially, fragmented source files will be used to build the libydk library, but only combined files (one per model) will be posted in ydk-cpp. Fragmented header files can be made available to users (separate branch?) if they run into very high memory requirements caused by including a very large number of models.