Chg_mem error problem with MCNP

  • Thread starter Thread starter zhangxm
  • Start date Start date
  • Tags Tags
    Error Mcnp
AI Thread Summary
The user is experiencing a "chg_mem error" when running MCNPX 2.5 and MCNP5 on a Windows 10 system, despite the input file working on an older Windows XP computer. It appears that the issue may be related to the number of voxels in the input file, as smaller voxel counts (e.g., 1,500,000) run without error, while larger counts (e.g., 19,000,000) trigger the error. There is speculation that the version of MCNP being used may be outdated, but the user confirms they are using a more recent version. Other users express similar issues on Windows 10 and seek solutions. The discussion highlights the need for compatibility checks and potential adjustments to input file parameters.
zhangxm
Messages
4
Reaction score
0
TL;DR Summary
Hi,
I have a problem with MCNP. The problem is : the input file can run correctly on WindowsXP system,but when I run it on a more powerful computer with win10 system , the MCNP showed "chg_mem error". How to solve this problem?
Hi,
I have a problem with MCNP. The problem is : the input file can run correctly on WindowsXP system,but when I run it on a more powerful computer with win10 system , the MCNP showed "chg_mem error". How to solve this problem? can MCNP only operate on winXP or win2000 system?
 
Engineering news on Phys.org
zhangxm said:
can MCNP only operate on winXP or win2000 system?

No !
perhaps you have a very old version of MCNP (4 ?)
 
PSRB191921 said:
No !
perhaps you have a very old version of MCNP (4 ?)
The version is MCNPX 2.5 and MCNP5. I use the input file of human voxel phantom to calculate organ dose, it can run correctly on an older computer with winXP system , which run very slowly due to the poor ability of the cpu . So I transfer it to a more powful computer with intel Core i9 cpu and win10 system, then i run it with the MCNPX 2.5 and MCNP5 respectively which were installed correctly on the above computer, but the result showed chg_mem error. What's the reason ?
 
can you give your input file ?
I can try with mcnp and mcnp6 with windows 10,
 
PSRB191921 said:
can you give your input file ?
I can try with mcnp and mcnp6 with windows 10,
thanks you a lot. can you give me your email address? so i can give you the input file.
or you can email me to the address: amms_zhangxm@163.com
 
PSRB191921 said:
No !
perhaps you have a very old version of MCNP (4 ?)
I found if the number of voxels is lower, for example 1500000, the input file can run correctly on the win10 system, but if the voxel number is bigger, for example above 19000000, it will show the chg_mem error
 
PSRB191921 said:
can you give your input file ?
I can try with mcnp and mcnp6 with windows 10,

I have the same problem with Win 10! how can I resolve it?
thanks!
 

Similar threads

MCNP Deck Error: cannot create srctp
Replies
1
Views
922
MCNPX ver 2.7 error: ''bad problem in xact in routine tpefil chg_mem error''
Replies
3
Views
2K
MCNP4C suppressing terminal/console window popping up?
Replies
3
Views
2K
If MCNP tallies are normalized, shouldn't they be <1?
Replies
5
Views
3K
MCNP6: error -- "bad trouble in imcn" is usually tangled with spacing error?
Replies
6
Views
4K
Run MCNP 5 input file of certain geometry for flux calculation
Replies
8
Views
2K
MCNP5 tallies conversion and MCNPX
Replies
1
Views
2K
Geometry error: no intersection found in mcnp
Replies
3
Views
3K
Why is My MCNP Burnup Calculation Failing?
Replies
1
Views
2K
An extremely basic question on MCNP
Replies
2
Views
3K

Hot Threads

Recent Insights

Back
Top