Launch simulation problem

I met a simulation issue, please give me some help or advices.Here is the issue:
When I launch my simulation, the log console panel just stop,there is not any new progerss dispaying,the progress keeps 0% ,When I was editing this information, this situation had been ongoing for an hour ,and no any error or bug reported by spis.The picture is the screen shot.

haha,I figured it out,the problem is the “out of memory”,the default memory is 1GB,one can solve this issue by modify the memory limitation to 4GB or higher in the Preference.