sampling throughput: -nan (tokens/thread/sec)

[scarpdiem]

I try to deploy lightLDA on CentOS7 and Ubuntu16， but I got the same problem. when I execute lightlda, the prompt returns sampling throughput: -nan (tokens/thread/sec) and the size of .mode file is 0.
I compile multiverso and lightLDA and get no error during compiling process. I can't find the reason and the solution to this problem, Could someone give me some suggestons to successfully deploy the lightLDA.