Re: Fluka crashes for higher primaries for heavy ion

From: Alfredo Ferrari <alfredo.ferrari_at_cern.ch>
Date: Wed, 24 Oct 2012 08:10:14 +0200

... to both

could you please send the input file (probably alreay sent) and the last
random number left in the fluka_xxxx directory before the crash (the
ran<input file name>xxx one)?

                        Thanks
                       Alfredo

+----------------------------------------------------------------------+
| Alfredo Ferrari || Tel.: +41.22.76.76119 |
| CERN-EN/STI || Fax.: +41.22.76.69474 |
| 1211 Geneva 23 || e-mail: Alfredo.Ferrari_at_cern.ch |
| Switzerland || |
+----------------------------------------------------------------------+

On Tue, 23 Oct 2012, Jean-Emmanuel Groetz wrote:

> Users and experts,
>
> For the last post of Mohammad concerning the problem with heavy ion, I
> tried to run his input file, and I confirm that Fluka stops after a
> while:
> - after ~18000 primaries for NEW-DEFA
> - after ~80000 primaries for HADROTHE
>
> It seems that the flukadpm3 module crashed. It was generated with the
> ldpmqmd shell script from the latest version of Fluka, i.e. 2011.2.15,
> with the option FLUFOR=gfortran (gfortran 4.6.3).
>
> Here is the error message in the log file:
>
> Program received signal 8 (SIGFPE): Floating-point exception.
>
> Backtrace for this error:
> + /lib/x86_64-linux-gnu/libc.so.6(+0x364a0) [0x7fe2d3a594a0]
> + /lib/x86_64-linux-gnu/libm.so.6(log+0x24) [0x7fe2d401e544]
> + function sgdedx_ (0xC756D5)
> at line 50 of file sgdedx.f
> + function electr_ (0xC467CD)
> at line 6 of file electr.f
> + function kasemf_ (0xAC3A6F)
> at line 183 of file kasemf.f
> + function kaskad_ (0x91240A)
> at line 3717 of file kaskad.f
> + function feeder_ (0x907725)
> at line 257 of file feeder.f
> + function flukam_ (0x8388C5)
> at line 3095 of file flukam.f
> + function fluka (0x40B8CC)
> at line 289 of file fluka.f
> + /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)
> [0x7fe2d3a4476d]
> Quit (core dumped)
>
>
> --
> _______________________________________________
> Jean-Emmanuel Groetz
> Laboratoire Chrono-Environnement UMR CNRS 6249
> Chimie-Physique & Rayonnements
> Universit?? de Franche-Comt??
> 16 route de Gray
> 25030 Besan??on Cedex
> France
>
> mailto : jegroetz_at_univ-fcomte.fr
> tel : +33 (0) 3 81 66 65 07
> fax : +33 (0) 3 81 66 65 22
> _______________________________________________
>
>
> Le dimanche 21 octobre 2012 ? 19:15 -0500, Mohammad Islam a ??crit :
>> Dear fluka users,
>>
>>
>> First of all thank you very much Jean-Emmanuel for your suggestion. I
>> still have this problem.
>>
>>
>> While I installed fluka, I followed the instructions as mentioned in
>> the fluka website. I used the term $FLUPRO/flutil/ldpmqmd
>> which I believe generates the flukadpm3 executable. I thought this
>> executable enables nucleus-nucleus interactions and that's why I used
>> flukadpm3 in falir as executable in this problem. In this setup, I was
>> able to run for 5000, 10,000 or 20,000 primaries but it was random.
>> Sometimes it crushes even for 2,000 primaries. I absolutely have no
>> idea what is happening. Attached is the error file for 50000
>> primaries .Someone please help me as I am not much familiar with
>> fortran and linux. BTW, I am using fedora 15.
>>
>>
>> Thank you very much.
>>
>> Sincerely
>> Mohammad
>> Dept of Physics, Oklahoma State Unversity
>> USA
>>
>>
>> On Fri, Oct 19, 2012 at 9:18 AM, Jean-Emmanuel Groetz
>> <jegroetz_at_univ-fcomte.fr> wrote:
>> Mohammad,
>>
>> On my workstation, I ran your input with 10000 primaries: see
>> the
>> attached plot.
>> I linked the DPMJET/RQMD modules with flair (Link ->ldpmqmd
>> and Exe
>> ->flukadpm).
>> Don't forget to first compile the ldpmqmd file located in the
>> flutil
>> directory.
>>
>> Hope this helps.
>>
>> Jean-Emmanuel
>>
>> --
>> _______________________________________________
>> Jean-Emmanuel Groetz
>> Laboratoire Chrono-Environnement UMR CNRS 6249
>> Chimie-Physique & Rayonnements
>> Universit?? de Franche-Comt??
>> 16 route de Gray
>> 25030 Besan??on Cedex
>> France
>>
>> mailto : jegroetz_at_univ-fcomte.fr
>> tel : +33 (0) 3 81 66 65 07
>> fax : +33 (0) 3 81 66 65 22
>> _______________________________________________
>>
>>
>> Le jeudi 18 octobre 2012 ? 21:04 -0500, Mohammad Islam a
>> ??crit :
>> >
>> > Dear Fluka experts,
>> >
>> > I was trying to get an LET spectrum from 956 MeV/n Fe beam
>> behind
>> > aluminium shield using an gas filled detector. For heavy
>> ion, I used
>> > flukadpm3 executables (I am not sure if I am right). Using
>> FLAIR, I
>> > can run this input for 1000 primaries but if I increase the
>> primaries
>> > (e.g. 10,000) it finishes with error. If I don't use any
>> executables
>> > this input runs fine even for higher primaries but that is
>> not what I
>> > want. I tried this in several computers but I did not
>> succeed. Could
>> > any one please suggest me how can I run this input for
>> higher number
>> > of primaries (10^6 at least). I Vastly appreciate any kind
>> of help.
>> > Attached is the input.
>> >
>> > Sincerely
>> > Mohammad
>> > Physics dept, Oklahoma State University
>> > USA
>> >
>> >
>>
>>
>>
>
>
Received on Wed Oct 24 2012 - 09:27:30 CEST

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