高手帮帮忙：模态计算问题

用patran导入nastran计算时报的错：
There are 76 MEM_FREE areas containing a total of 1991122944 bytes (76AE2000 hex) of free space.
The largest MEM_FREE area is 1482350592 bytes long (585AE000 hex) at 07A52000.
The largest available MEM_FREE area at startup was 1482293248 bytes long (585A0000 hex) at 07A60000.
19:10:30 MAINAL: *** OPEN CORE MEMORY ALLOCATION FAILED *** ERROR = 1
19:10:30 MAINAL: *** MEMORY REQUESTED = 392193024 ***
19:10:30 MAINAL: *** PROCESSING TERMINATED ***
19:10:30 Analysis complete 8
是内存不足的原因吗？？？
盼望高手指点下！！:)