The software exits automatically when using parallel computing

I want to do a model in which the smaller particle will impact and adhere to the larger particle by Van der waal force. My calculation region is flat with 3e-42e-42e-6,and the cell size is 1e-51e-52e-6, but there are some strange when using parallel computing with different core arrangement. It will exit automatically when core distribution is 551,or 651,or 741,or others. But it can running in 431, or 111. I am confused about that. The case is as followed:
try.10.5.zip (4.5 MB)

Supplement: It would be error when the core distribution is 551, as followed:

Have you examined the .LOG files?

Sorry about that, i am new for mfix, and do not know how to examine the .log files. the two .log files are list :
log.zip (6.3 KB)
Can you tell me how to examine it.

They are just text files. Open them in a text editor or use less to view in the terminal.