segmentation fault (core dumped)

[deee...@gmail.com]

i want to compile caffe and i have GTX 1080 , Cuda8*.deb , cudnn8 v6 , OS linux 16.04.3 LTE. before compile caffe , install Matlab 2014a , opencv3.3 , OpenBLAS , ..... when compile caffe and pycaffe finish , run ipython then import caffe , appear such error : segmentation fault (core dumped) another problem when make matcaffe : this says current version gcc , ... please help me to solve this problems. before i compiled caffe and import caffe was ok but i don't know why don't work now , and before total Volume caffe folder was order Gig but now ~ 20 Meg,