MNCP5 error: Program Exception - stack overflow

[ytaiwo85]

TL;DR Summary

what causes this error message forrtl: severe (170): Program Exception - stack overflow on mcnp5 when using new data library endf80 (lib80.x) with geometry that have many latice cell. It work well on simple model and when use with mcnpx.
I can figure it out, what is really wrong because the same geometry work without error with other data library (Fendl, endf70B).
only this new library gives this error message[ forrtl: severe (170): Program Exception - stack overflow]

 

[jedishrfu]

There's really not enough to go on.

Can you run the program in a debugger? Sometimes program code is compiled and linked to its source code such that a debugger can identify the line of failure and from there you can identify what may have caused it.

I would suggest finding a user group for this program and ask knowledgeable users about your error. It's likely that you have exceeded some limit on the size of your data.

In the meantime, go through your data to see if there are any numbers that are extremely large or much larger than usual. Check to see if there are any invalid numbers like entering 12:34 or 12^34 instead of 12.34.

 

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