Nastran2010分析出现问题。。。求高手解救

用nastran分析振动传函和动刚度的时候，它的f04和f06文件都是0kb。。。可是之前用的nastran2007R1是可以出结果的，换成2010就不行了？log文件报错也一样，报错提示如下
03:07:04 MSC Authorization Information - Checkout Successful (1016, 0)
03:07:04 -------------------------------------------------------------
03:07:04 Acquired 1 license for MD Nastran from license server on host GLF-PC
The maximum available OPEN CORE size is 407845882 words.
Unable to allocate Open Core.
Requested size = 2047352576 bytes (7A081F00 hex)
GetLastError() returned 8 ("存储空间不足，无法处理此命令。").
Virtual Storage Map
7FFE1000 0000F000 MEM_RESERVE N/A PAGE_NOACCESS
603 memory areas have been listed.
There are 98 MEM_FREE areas containing a total of 1923022848 bytes (729F0000 hex) of free space.
The largest MEM_FREE area is 1631387648 bytes long (613D0000 hex) at 10090000.
The largest available MEM_FREE area at startup was 1631387648 bytes long (613D0000 hex) at 10090000.
03:07:04 MAINAL: *** OPEN CORE MEMORY ALLOCATION FAILED *** ERROR = 1
03:07:04 MAINAL: *** MEMORY REQUESTED = 557763584 ***
03:07:04 MAINAL: *** PROCESSING TERMINATED ***
03:07:04 Analysis complete 8
OPEN CORE Allocation Failed
AssignProcessToJobObject failed, error code = 5.
Error message is "拒绝访问。".
Reported CPU times may be incomplete.
Real: 4.109 seconds ( 0:00:04.109)
User: 1.232 seconds ( 0:00:01.232)
Sys: 0.140 seconds ( 0:00:00.140)
MD Nastran finished Thu Apr 18 03:07:04 中国标准时间 2013
额，想悬赏来着，可惜好像没有积分了，真是抱歉。。。这个请诸位大神帮下忙，谢谢了