ls-dyna模拟出现无法分配多少内存？

*** Warning 70025 (OTH+25) (processor # 0)

     Memory is set 169494797 words short

     increase the memory size to 977976604

*** Error 70023 (OTH+23) (processor # 0)

     LS-DYNA failed to allocate 977976604 words of memory.

     Please use the memory option on the execute line.

这个就表示机器内存不够吗？算了下977976604 words大约是7.3G，我的电脑是8G的。模型单元数400万。