Re: FW: Help-Fluka dies with core dump RC=34304 Error (Geometry data to big???)

Hi Steve,

I am also posting this answer in the FLUKA list, hoping that your message
will eventually appear there too.

The message GEOMETRY SEARCH ARRAY FULL is explained in the manual (Chap. 9,
section 9.4, Error Message):

"This message indicates that insufficient memory has been allocated for the
"contiguity list" (list of zones contiguous to each zone). This is not an
actual error, but it is suggested that the user could optimise computer time by
increasing the values of the NAZ variable in the geometry region specifications.

You can find more detail also in the Course lecture on Geometry (slide 19):
https://www.fluka.org/free_download/course/triumf2012/Lectures/AdvancedGeometry2012.pdf

As you can see, the error to which the message refers is not fatal, but could
be the cause of a slightly lower execution.
However, I suspect that most (or all) of your problems could be due to an
incorrect setting of the NAZ variable in your region definitions. In
free-format geometry, the NAZ variable MUST be given explicitely. It can be
set = 0 (in which case it is assumed to be = 5) but NOT TO A BLANK.

If your NAZ values are correct, then the error message can be made to disappear
by increasing one (or all) of them.

Alberto

On Tue, 4 Dec 2012, Santana, Mario wrote:

> Hi Steve,
>
> I am posting my answer in the FLUKA list, where somehow your message
> apparently never made it through.
>
> Mario
>
> -----Original Message-----
> From: Santana, Mario
> Sent: Monday, December 03, 2012 2:34 PM
> To: Kramer, Stephen L
> Subject: Re: Help-Fluka dies with core dump RC=34304 Error (Geometry data to big???)
>
> Hi Steve,
>
> How many regions has your geometry? If it is more than 1000 you should so say in a GLOBAL card, first WHAT (http://www.fluka.org/fluka.php?id=man_onl&sub=40)
>
> Hope this helps,
>
> Mario
>
> On Dec 3, 2012, at 11:23 AM, Kramer, Stephen L wrote:
>
>
>
> Hi Mario,
> I see you are actively involved in the FLUKA discussion Group. They don't seem to make it onto the Discussion Group website.
> I haven't been able to get a response to my first issue when I was getting a
> GEOMETRY SEARCH ARRAY FULL error on the .err file. See below
>
> Now I am since I added more regions and bodies I get a Crash of FLUKA.
> Are there larger array version of FLUKA available? I am trying to model the Booster tunnel and shield wall for NSLS-II.
> The previous people that specified the local shielding really screwed up and I have been asked to find and shield the possible loss points for all the accelerators and the Booster at 3 GeV extraction is the biggest problem.
> Thanks for any help you can give on this since it's the critical issue and I am stuck now. Fluka worked quite well on the Linac but it was much smaller problem. I also have comparisons with measurements of the radiation dose they measured for the incident and will try to publish when I get the chance.
> BTW I was using FLUKA to track the Cerenkov photons in my Beam Loss monitors before the incident that has pulled me 150% of the time.
> Best Regards Steve
>
> *** dp/dx:d,imat,ztar,ij,po,eo -5.35021666E-05 29 2.9900636 51 3.48031313
> 4.1633337 ***
> *** x,xoster,ccster,d0ster 0.182751123 0.1827 -3.2367 0. ***
> *** dp/dx:d,imat,ztar,ij,po,eo -5.35021666E-05 29 2.9900636 57 3.48031313
> 4.1633337 ***
> *** x,xoster,ccster,d0ster 0.182751123 0.1827 -3.2367 0. ***
> 1NUMBER OF BEAM NUMBER OF BEAM APPROXIMATE NUMBER AVERAGE TIME USED TIME LEFT (RESERVED NUMBER OF STARS
> PARTICLES HANDLED PARTICLES LEFT OF BEAM PARTICLES BY A BEAM PARTICLE 10000.0 SECONDS CREATED
> THAT CAN STILL BE FOR PRINTOUT)
> HANDLED
>
> NEXT SEEDS: 0 0 0 0 0 0 98F3 3039 0 0
> 1 999 999 5.0018311E-02 1.0000000E+30 0
> NEXT SEEDS: FB69 0 0 0 0 0 98F3 3039 0 0
> 20 980 980 1.0678406E-01 1.0000000E+30 4
> NEXT SEEDS: 247CAE 0 0 0 0 0 98F3 3039 0 0
> ****************************************
> GEOMETRY SEARCH ARRAY FULL
> ****************************************
> 40 960 960 1.0758438E-01 1.0000000E+30 42
> NEXT SEEDS: 4A723D 0 0 0 0 0 98F3 3039 0 0
> 60 940 940 1.1289978E-01 1.0000000E+30 96
> NEXT SEEDS: 75078F 0 0 0 0 0 98F3 3039 0 0
> From: Kramer, Stephen L
> Sent: Saturday, December 01, 2012 12:19 PM
> To: 'fluka-discuss_at_fluka.org'
> Cc: 'Vasilis Vlachoudis'; 'afasso_at_jlab.org'
> Subject: Help-Fluka dies with core dump RC=34304 Error (Geometry data to big???)
>
> Seems like I hit some sort of limit in FLUKA
> Earlier I was getting GEOMETRY SEARCH ARRAY FULL error
> But I have added significant number of new regions and now I am getting just a core dump after the geometry is read in. No error file is generated.
> I tried gdb to debug but it doesn't seem to find error other than generic signal 6 generated.
> Is there a version of FLUKA that has larger arrays for the geometry?
>
> Vasilis the newer version seems to fix the GNU plot Log(0) problem. Thanks
> Do you have a new e-mail address for Roberto Versaci? Or anyone else who was looking for a job using FLUKA?
> I am pushing to setup a Radiation Physics group here at BNL and FLUKA will be a key calculation tool.
> Thanks Steve
>
>
>
>
> Stephen L. Kramer , PhD
> Accelerator Physicist
> Photon Science Accelerator Division
> Brookhaven National Lab.
> Bldg. 817m, Rm 74
> Upton, NY 11973
> 631-344-4925
> 631-344-3395 (fax)
> 631-356-4192 (cell)
>
> <Screenshot-Geometry Debug-1.png><BoosterExtDCSeptShdB1B2ArcShdQFBDBFSS1_VC001.out><BoostExtDCSeptShdPolyB1B2_ArcShdQFBDBF3SS1_VC.flair><BoosterExtDCSeptShdB1B2ArcShdQFBDBFSS1_VC.inp><BoosterExtDCSeptShdB1B2ArcShdQFBDBFSS1_VC001.log><fort.16>
>
>
>
>

-- 
Alberto Fasso`
SLAC-RP, MS 48, 2575 Sand Hill Road, Menlo Park CA 94025
Phone: (1 650) 926 4762   Fax: (1 650) 926 3569
fasso_at_slac.stanford.edu