System error code 5 while executing umat

[unsrohith]

Hi.

One of my user subroutine gets terminated with the following error 'system error code 5' after 15 increments. If any one knows the specific reason please help me out.

Microsoft gives the following description saying " ACCESS_DENIED" for error code no 5.

Thanks and regards,
Rohith

[Jorgen]

I am not sure what that error code really means. I recommend that you perform a standard debugging strategy, ie add a bunch strategic print statements to your code :eek:

[unsrohith]

Hi Jorgen,

Can you suggest the best platform to compile UMAT's based on your experience as currently I am using windows but facing some peculiar problems related to system error codes etc. According to the discussion available in this forum you might have never faced this problems (system error codes). If you are using linux, please suggest the best platform for coding UMATS to ABAQUS.

Thanks and Regards,
Rohith

[Jorgen]

In theory it should not matter if you code on Linux or Windows. I use Linux mostly due to personal preferences that have nothing to do with Abaqus. All my user-material codes that I develop I always test and use on Windows computers as well.

I virtually never see any different between Windows and Linux in terms of error codes, etc. I suggest that you use the computer platform that you like the most.

-Jorgen

[StephenKiernan]

I've run into that error alot when writing VUMATs or VUELs. From my many hours of cursing at the monitor I think it means that a certain part of your subroutine is trying to access a variable that it doesn't have permission to access, e.g. a subroutine you've defined might be trying to access a variable that hasn't been passed to it. Also your list of arguments in a CALL subroutine_name() statement might not be the same as the corresponding SUBROUTINE subroutine_name(), I think that can throw up this error too.

Stephen

[unsrohith]

Hi Stephen,

Thanks a lot for the information. As suggested by Jorgen the best way to debug these errors is to put a write statement before and end of the particular loop.

Regards,
Rohith.