Thank you Thanasis, that was indeed the problem!
________________________________
From: Thanasis Manousos
Sent: Monday, March 17, 2014 3:50 PM
To: Timotheus Cooijmans; fluka-discuss_at_fluka.org
Subject: Re: [fluka-discuss]: Too many errors in geometry
Dear Tim
The problem is that you have an overlap between regions BLKBODY and VOID.
Region VOID is overlapping the Region BLKBODY
Change the expression of the Region VOID to the following:
VOID 5 +void -target
| +void +cut1
| +void +target -cut2
This will fix your problem.
Hope this will help,
Best regards,
Thanasis
On 03/17/2014 03:17 PM, 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
--
Athanasios Manousos
Dep. EN/STI, CERN
CH-1211 GENEVA 23
SWITZERLAND
PHONE: +41-22-7675461
URL: http://cern.ch/manousos
Received on Mon Mar 17 2014 - 17:02:16 CET