Re: [fluka-discuss]: USERDUMP and random numbers

From: Alberto Fasso <fasso_at_mail.cern.ch>
Date: Wed, 12 Mar 2014 14:59:13 +0100

Dear Christian,

WHAT(1) in command USERDUMP must be >= 100 (see the manual).

Alberto


On Wed, 12 Mar 2014, Christian Buhl Sorensen wrote:

>
> Hello there!
>
>  
>
> I am trying to work out, how to extract the eventfile from FLUKA.
>
> I’ve got fluka running, and I’ve been able to simulate simple geometries,
> and it yields sensible results. So I’ve got that going for me, which is
> nice.
>
> Furthermore, I’d like to get the particle trajectories, to get a feeling of
> the propagation of particles in materials.
>
>  
>
> The setup I have is very simple, it’s just an electron beam of 500MeV,
> impinging from vacuum, into a cylinder of air. And I’d like to see the
> secondary particle showers, and also how much the primary particles spread
> out. For that I’ve found that I should use the USERDUMP-card. In flair, it
> is set up as Type:Dump, Unit:50, File:test, What:[empty], Score:All and
> Dump:[empty].
>
>  
>
> My plan is from hereon, to get that information and use SimpleGeo, with
> PIPSICAD, to visualize the particle trajectories.
>
>  
>
> ---My problem:
>
> When I run the simulation, it stops, with the following in the
> Output-terminal:
>
>  
>
> [begin]
>
>  
>
> Dir: /home/cb/w3
>
> Cmd: /usr/local/fluka/flutil/rfluka –e /home/cb/w3/piflu –M 5 test
>
> $TARGET_MACHINE = Linux
>
> $FLUPRO = /usr/local/fluka
>
>  
>
> Initial seed already existing
>
> Running fluka in /home/cb/w3/fluka_3479
>
>  
>
> ============== Running FLUKA for cycle # 1 ================
>
>  
>
> Removing links
>
> Removing temporary files
>
> Saving output and random number seed
>
>                 No rantest002 generated!
>
> Saving additional files generated
>
>                 No additional files to move
>
> ERROR: Random seed ‘/home/cb/w3/rantest002’ do not exist!
>
>  
>
> [end]
>
>  
>
>  
>
>  
>
> I also get an error message in the folders (test-001.err):
>
> *** Old dump file is obsolete and no longer implemented ***.
>
>  
>
>  
>
>  
>
> I hope you will take your time to look this through - And thank you very
> much, in advance.
>
>  
>
> Kindly, Christian Buhl Sørensen.
>
>  
>
>  
>
>  
>
>  
>
>  
>
> ========= Other information ===========
>
>  
>
> ---My system:
>
> I use FLUKA(v2011.2b.5) with flair (1.2-4), on a virtual machine(Virtualbox)
> running 32 bit Fedora 20. I have installed the compatibility package for the
> g77, namely compat-gcc-34-g77 (this might be a hint for others, unless it’s
> a wrong thing to do, I struggled quite a bit with finding that). I expect
> the compiler to be fine, as it compiles the mgdraw, and links it to a
> executable without problems.
>
>  
>
> ---My inputfile:
>
> TITLE
>
> test
>
> * Set the defaults for precision simulations
>
> DEFAULTS                                                             
> PRECISIO
>
> * Define the beam characteristics
>
> BEAM            -0.5                          -0.1      -0.1         
> ELECTRON
>
> * Define the beam position
>
> BEAMPOS          0.0       0.0      -10.
>
> GEOBEGIN                                                             
> COMBNAME
>
>     0    0         
>
> * Black body
>
> SPH blkbody    0.0 0.0 0.0 300.0
>
> * Void sphere
>
> SPH void       0.0 0.0 0.0 100.0
>
> * Cylindrical target
>
> RCC target     0.0 0.0 0.0 0.0 0.0 10.0 5.0
>
> END
>
> * Black hole
>
> BLKBODY      5 +blkbody -void
>
> * Void around
>
> VOID         5 +void -target
>
> * Target
>
> TARGET       5 +target
>
> END
>
> GEOEND
>
> * ..+....1....+....2....+....3....+....4....+....5....+....6....+....7..
>
> ASSIGNMA    BLCKHOLE   BLKBODY
>
> ASSIGNMA      VACUUM      VOID
>
> ASSIGNMA      AIR    TARGET
>
> USERDUMP                   50.       0.0                              test
>
> * Set the number of primary histories to be simulated in the run
>
> START           100.
>
> STOP
>
>
>
Received on Wed Mar 12 2014 - 16:02:51 CET