I am experiencing some issues with Flair 3.3-1 and FLUKA 4-4.1. When running my latest simulation, sometimes one of these things happens:
The simulation freezes. Just the simulation, not Flair, meaning that the progress bars do not move any more. After that, when killing the run process and cleaning the files, a message (yellow background) saying that the files were deleted with warnings is prompted.
The simulation seems to start running (the simulation files are created in the project directory), however the progress bars remain empty.
There is sometimes a collateral strange symptom when one of these things happens: a message saying that the project has been externally modified appears, asking if I want to load the new version.
These things happen occasionally with the project I’m working on and I have not identified a way to replicate them by doing specific actions. I upload this project in case you’d like to see if there is something in it that could cause these issues.
I have unfortunately not been able to reproduce the issues you mention. Next to using Flair, I also ran the simulation just using command line without any problems. You are using a large amount of primaries to see an effect in the small target embedded in this big simulation volume, this perhaps is not the most ideal approach but I don’t know what you are exactly trying to achieve.
I would try to narrow down the issues with perhaps running less primaries and carefully checking the output and error files.
thank you very much for testing. I was afraid some setting could be wrong in the project. However, I must say that, after my post in this forum, I ran again the simulation three times with 250 millions primaries (30 minutes on my workstation) with no issues by letting the simulation run alone without doing anything in Flair. I suspect that I previously experienced issues because I was doing things in Flair with the simulation running, such as changing the project title and/or saving the project. Strange, these are things I used to do with previous versions of Flair apparently with no problem, as far as I can remember. Anyway, if I just have to let run the simulation alone until it ends this is just perfectly fine to me.
Cheers,
Enrico
P.S. In our research team we’ve been using LiF crystals to estimate proton beam spectra (below 71 MeV so far) by analyzing the photoluminescence of stable defects created in the crystal with the irradiation. This simulation is a test to estimate the amount of energy deposition one should more or less expect on the crystal top and bottom faces at distances longer than the Bragg peak in the material, under ideal setup conditions (mainly, no horizontal tilt of the crystal).