Relion 2.1 installation error (during "make")

[deggerthh]

I am trying to install relion 2.1 but the compilation aborts during “make” with an error (short version below, the complete console output of the error is attached):

[ 6%] Building NVCC (Device) object src/apps/CMakeFiles/relion_gpu_util.dir/__/gpu_utils/relion_gpu_util_generated_cuda_helper_functions.cu.o
[ 6%] Built target copy_scripts
/usr/include/string.h: In function ‘void* mempcpy_inline(void*, const void*, size_t)’:
...
Make Error at relion_gpu_util_generated_cuda_ml_optimiser.cu.o.cmake:266 (message):
Error generating file
/home/eggert/relion/build/src/apps/CMakeFiles/relion_gpu_util.dir//gpu_utils/./relion_gpu_util_generated_cuda_ml_optimiser.cu.o

src/apps/CMakeFiles/relion_gpu_util.dir/build.make:517: die Regel für Ziel „src/apps/CMakeFiles/relion_gpu_util.dir//gpu_utils/relion_gpu_util_generated_cuda_ml_optimiser.cu.o“ scheiterte
make[2]: *** [src/apps/CMakeFiles/relion_gpu_util.dir//gpu_utils/relion_gpu_util_generated_cuda_ml_optimiser.cu.o] Fehler 1
CMakeFiles/Makefile2:614: die Regel für Ziel „src/apps/CMakeFiles/relion_gpu_util.dir/all“ scheiterte
make[1]: *** [src/apps/CMakeFiles/relion_gpu_util.dir/all] Fehler 2
Makefile:138: die Regel für Ziel „all“ scheiterte
make: *** [all] Fehler 2

System information (cmake console output is attached):

Ubuntu 16.04 LTS
1x Geforce 1080 with CUDA 7.5

The installation of the 2.05 version via apt-get works perfectly.

make_error_relion21.txt
cmake_output.txt

[bforsbe]

I guess this is down to using a newer gcc-version than cuda supports. Even cuda 8 does not officially support gcc 5.4, and you are using cuda 7.5. it would probably work if you used gcc 4.8 or so. You can find in the cuda version-specific documentation which compilers are supported, as here for cuda 8, and here (p.6) for cuda 7.5.

[deggerthh]

Thanks for the quick reply. Unfortunately using gcc 4.9 which CUDA 7.5 officially supports did not solve the problem. The error is still the same (see attached cmake output and error).
cmake2.txt
make_error_relion.txt

[bforsbe]

Seems like a system-dependent quirk: BVLC/caffe#4046

Advice: use cuda 8 ;)

[deggerthh]

Using CUDA 8 solved the problem.

Thanks a lot for your help.