Segmentation fault

[Thorifish]

Hi! I'm learning to use Gemini and having problems. I downloaded data from #22 and when I run mpirun -n 1 ./sssp scale16_s.bin 65536 39, it returns

=================================================================================== = BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES = PID 13556 RUNNING AT siyuan-Alienware-m15-R6 = EXIT CODE: 139 = CLEANING UP REMAINING PROCESSES = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES

YOUR APPLICATION TERMINATED WITH THE EXIT STRING: Segmentation fault (signal 11) This typically refers to a problem with your application. Please see the FAQ page for debugging suggestions

Then I tried gdb: (gdb) run scale16_s.bin 65536 39 Starting program: /home/user/Documents/GeminiGraph-master/toolkits/sssp scale16_s.bin 65536 39 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault. 0x00007ffff7fabf0f in numa_bitmask_equal () from /lib/x86_64-linux-gnu/libnuma.so.1 (gdb) where #0 0x00007ffff7fabf0f in numa_bitmask_equal () from /lib/x86_64-linux-gnu/libnuma.so.1 #1 0x00007ffff7facab3 in numa_set_interleave_mask () from /lib/x86_64-linux-gnu/libnuma.so.1 #2 0x0000555555557b9f in Graph::init (this=0x5555555b35a0) at /home/user/Documents/GeminiGraph-master/core/graph.hpp:169 #3 Graph::Graph (this=0x5555555b35a0) at /home/user/Documents/GeminiGraph-master/core/graph.hpp:148 #4 main (argc=, argv=) at /home/user/Documents/GeminiGraph-master/core/graph.hpp:143

Is there anyone can help me? Thanks a lot!

[Sanzo00]

In my experience, there are two lines code may cause the segmentation fault：

1. nodestring does not end with '\0', it will cause the numa_parse_nodestring parse error. https://github.com/thu-pacman/GeminiGraph/blob/170e7d36794fdcaca077f23bd0cd76e8ccab9e74/core/graph.hpp#L173

2. dealloc_vertex_array func not return anything, so it should be void. https://github.com/thu-pacman/GeminiGraph/blob/170e7d36794fdcaca077f23bd0cd76e8ccab9e74/core/graph.hpp#L241

You can modify the code like this way. https://github.com/Sanzo00/GeminiGraph/commit/f2be0a946d0bf66953f0ca1d5472ba45646e1d57 Hope it will help you.