I encountered segmentation fault when trying to do backprop on a K80. The code ran greatly on CPU, Titan X (Pascal) and GTX1080.
The OS is Ubuntu 16.04, the cuda version is 9.0.176, and the cudnn version is 7.0.
I used gdb to debug it and got the following report:
gdb --args python main.py
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Reading symbols from python…done.
(gdb) run
Starting program: /home/tjy/Applications/anaconda3/bin/python main.py
[Thread debugging using libthread_db enabled]
Using host libthread_db library “/lib/x86_64-linux-gnu/libthread_db.so.1”.
[New Thread 0x7fffac8b2700 (LWP 25932)]
==> Preparing data…
Files already downloaded and verified
Files already downloaded and verified
==> Building model…
[New Thread 0x7fffa2d34700 (LWP 25937)]
[New Thread 0x7fffa21ff700 (LWP 25938)]
[New Thread 0x7fff8c7ff700 (LWP 25943)]
Thread 5 “python” received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff8c7ff700 (LWP 25943)]
0x00007ffff0eb18d5 in ?? () from /usr/lib/x86_64-linux-gnu/libcuda.so.1
(gdb)
The libcuda.so.1 points to libcuda.so.390.30.
Any thoughts?
Thanks!