Dear Timotheus,
The Geofar error message is a clear hint of error in geometry.
I would suggest you to use the geometry editor and zoom out as much as you
can. You will find out something very interesting..... i.e. the error
Geofar is pointing at, which is an error in your void definition.
Maybe your colleague is not such a venerable master ;)
Cheers,
Roberto
On Mon, 17 Mar 2014, Timotheus Cooijmans wrote:
> Hi,
>
> I'm working through the lecture slides and exercises of last October's FLUKA course (at http://www.fluka.org/fluka.php?id=course&sub=program&navig=2&which=dresden2013 ) and got stuck at Exercise 8. FLUKA
> (2011.2b-linuxAA) keeps giving up after too many errors like the following:
>
> > Geofar: Particle in region 2 (cell # 0) in position -1.203992411E+12 -4.012447545E+09 -1.924933464E+04
> > is now causing trouble, requesting a step of 9.998519596E+04 cm
> > to direction -9.785927409E-01 1.816700853E-03 2.057983166E-01, error count: 0
> > R2: 1.203999097E+12 R3: 1.203999097E+12 cm
> > X*U (2D): 1.178210944E+12 X*U (3D): 1.178210940E+12 cm
> > X*UOLD(2D): 1.178210944E+12 X*UOLD(3D): 1.178210940E+12 cm
> > Kloop: 109, Irsave: 2, Irsav2: 2, error code: -33 Nfrom: 4999
> > old direction -9.785927409E-01 1.816700853E-03 2.057983166E-01, lagain, lstnew, lsense, lsnsct F F F F
> > Particle index 3 total energy 9.864196244E-04 GeV Nsurf 4
> > Try again to establish the current region moving the particle of a 9.664039024E+00 long step
> > We succeeded in saving the particle: current region is n. 2 (cell # 0)
> > Geofar: Particle in region 2 (cell # 0) in position -1.203992411E+12 -4.012447545E+09 -1.924734579E+04
> > is now causing trouble, requesting a step of 9.998519596E+04 cm
> > to direction -9.785927409E-01 1.816700853E-03 2.057983166E-01, error count: 1
> > R2: 1.203999097E+12 R3: 1.203999097E+12 cm
> > X*U (2D): 1.178210944E+12 X*U (3D): 1.178210940E+12 cm
> > X*UOLD(2D): 1.178210944E+12 X*UOLD(3D): 1.178210940E+12 cm
> > Kloop: 113, Irsave: 2, Irsav2: 2, error code: -33 Nfrom: 4999
> > old direction -9.785927409E-01 1.816700853E-03 2.057983166E-01, lagain, lstnew, lsense, lsnsct F F F F
> > Particle index 3 total energy 9.864196244E-04 GeV Nsurf 0
> > Try again to establish the current region moving the particle of a 9.664039024E+00 long step
> > [...]
> > We succeeded in saving the particle: current region is n. 2 (cell # 0)
> > Abort called from FLKAG1 reason TOO MANY ERRORS IN GEOMETRY Run stopped!
> > STOP TOO MANY ERRORS IN GEOMETRY
>
> The input file ex8.inp is attached. In an attempt to track down the problem, I distilled it down to ex8_debug.inp, which also exhibits the problem. My colleague -- otherwise a venerable master in the ways
> of FLUKA -- could not identify the cause either.
>
> What am I doing wrong?
>
> Thanks,
> Tim
>
>
Received on Mon Mar 17 2014 - 17:25:52 CET