- #1
chang-ho
- 1
- 1
- TL;DR Summary
- I don't know what the problem is.
I hope someone can solve this problem.
Help with error please: "dump 1 on file" on MCNP
In summary, the conversation discusses the dump process in MCNP, which occurs at the start and end of a run and may also happen during the run. The dump file contains helpful information for debugging and restarting a run, and can be controlled using the PRDMP card. Additionally, it is suggested to also post the str.run file for diagnostic purposes. The dump file is part of the normal operation and there are no error messages in the output file.
- #2
DEvens
Education Advisor
Gold Member
- 1,207
- 464
The dump thing is not a problem. By default, MCNP does a dump at the start of the run, and another at the end. And, depending on the settings and options, it may do additional dumps during the run.
The dump file contains information that may be useful for other purposes. For example, it may be useful in debugging or in re-starting a run to add more particles.
It will also print out additional information at each dump. You should be aware that there may be, for example, multiple reports of tallies. So the first (and all but the last, as there can be several) report of a tally may happen before all of your particles have been run.
You can control some of the dump process using the PRDMP card. Read up in the user manual about this card. It can be very useful when you are doing debug on a model.
The dump file contains information that may be useful for other purposes. For example, it may be useful in debugging or in re-starting a run to add more particles.
It will also print out additional information at each dump. You should be aware that there may be, for example, multiple reports of tallies. So the first (and all but the last, as there can be several) report of a tally may happen before all of your particles have been run.
You can control some of the dump process using the PRDMP card. Read up in the user manual about this card. It can be very useful when you are doing debug on a model.
- #3
sysprog
- 2,617
- 1,795
The dump file, as @DEvens indicated, contains information that could be useful for diagnostic purposes, so perhaps it would be just as well to also post the str.run file, instead of just posting the str.txt source file the processing of which caused the dump to be generated.
- #4
DEvens
Education Advisor
Gold Member
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- 464
sysprog said:
The question has been sorted. The dump file is normal operation. There are no error messages in the output file produced.
Related to Help with error please: "dump 1 on file" on MCNP
What does "dump 1 on file" mean in MCNP?
"Dump 1 on file" is an error message that appears in MCNP when the program is unable to write the output data to the designated file. This can happen due to various reasons, such as insufficient disk space, incorrect file permissions, or an error in the input file.
How can I fix the "dump 1 on file" error in MCNP?
The first step to fixing this error is to check the designated output file and make sure it is accessible and has enough space. If the file is accessible and has enough space, then the error may be due to an error in the input file. Check the input file for any mistakes and correct them. If the error persists, try running the simulation with a different output file name.
Can the "dump 1 on file" error be caused by a bug in MCNP?
While it is possible for a bug in MCNP to cause this error, it is not very common. Most of the time, this error is caused by an issue with the output file or the input file. However, if you have ruled out these possibilities and the error still occurs, it is recommended to contact the MCNP support team for further assistance.
Is there a way to prevent the "dump 1 on file" error from occurring?
To prevent this error from occurring, it is important to make sure that the designated output file is accessible and has enough space before running the simulation. Additionally, double-checking the input file for any errors can also help prevent this error. It is also recommended to save your work frequently to avoid losing any data in case this error does occur.
What other errors in MCNP can be related to the "dump 1 on file" error?
The "dump 1 on file" error can sometimes be related to other errors in MCNP, such as "dump 2 on file" or "dump on file". These errors indicate similar issues with writing the output data to the designated file. However, each error may have its own specific cause, so it is important to carefully read the error message and troubleshoot accordingly.
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