MCNP6 is not printing an MCTAL file

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Discussion Overview

The discussion revolves around an issue with MCNP6 software where users report that a simulation runs successfully but does not generate an MCTAL file. The problem appears to be linked to a previous error message regarding program exceptions.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • One participant describes experiencing an issue where an MCTAL file is not created after running a simulation, which they believe may be related to a prior access violation error.
  • Another participant suggests that the absence of an MCTAL file could be due to an overload of existing MCTAL files and recommends deleting all related files.
  • A different participant notes that the issue persists even when no other MCTAL files are present, indicating a potential connection to the earlier error.
  • There is a question raised about whether this thread is a duplicate of a previous discussion regarding the same issue.
  • A participant confirms that this thread is indeed the initial discussion about the problem, which had occurred intermittently.
  • One participant proposes closing the thread and directing others to the related discussion for answers.

Areas of Agreement / Disagreement

Participants express differing views on the cause of the missing MCTAL file, with some attributing it to file overload and others linking it to the access violation error. The discussion remains unresolved regarding the exact cause of the issue.

Contextual Notes

Participants have not fully explored the implications of the access violation error or the specific conditions under which the MCTAL file fails to generate. There may be assumptions about file management practices that are not explicitly stated.

khary23
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I am having an issue with MCNP6. When I run a simulation an output file is created, but not a mctal file. This behavior started after getting the following error

forrtl: severe <157> : program exception -access violation

I restarted and didn't get the error, but now not the mctal file and I think it maybe related. Any ideas?
 
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perhaps too much mctal file created. Try to del all mctal files (mctal, mctab, …)
 
It happens even when there are no other mctal files. I think it has something to do with that error.
 
khary23 said:
I am having an issue with MCNP6. When I run a simulation an output file is created, but not a mctal file. This behavior started after getting the following error

forrtl: severe <157> : program exception -access violation
Is this thread another description of the problem you had in your other thread?
 
Mark44 said:
Is this thread another description of the problem you had in your other thread?
Yes this was the initial thread when the issue had only happened a few times.
 
Then I will close this thread. Please take a look at the other thread to see if I have answered your question.
 

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