Re: run stopped (UBCHCK)

From: Alfredo Ferrari <>
Date: Fri, 17 Sep 2010 16:01:30 +0200

Dear Andrea

the message means something went really weird during usrbin scoring.
That routine (ubchck) checks for memory out of bound when scoring
usrbin's. It is nothing depending on the user input unless you
used some "strange" usrbin settings (eg extremely thin bins or similar).

Could you please send the input file and random number resulting in the


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

On Mon, 30 Aug 2010, wrote:

> Dear FLUKA experts and users,
> I am trying to run an input containing a voxel geometry surrounded by
> walls (Geometry modelling was done using cutting surfaces as it is
> recommended). In case it plays a role, the beam particles are low energy
> neutrons. The input is running but after a certain number of particles
the run
> stops.
> I receive the following error message written at the end of the *.out and
> .*err file:
> "Abort called from UBCHCK reason IXYZ-1 Run stopped! STOP IXYZ-1"
> The geometry is well checked against errors. The same geometry input ran
> successfully with different voxel geometry some time ago.
> Is the problem associated with the USRBIN cards? Cartesian and region
> are included in the input, but the usage of these cards is ok.
> Could somebody please explain me the reason / meaning of this error
> Thanks in advance!
> Andrea Zechner
Received on Sat Sep 18 2010 - 11:34:58 CEST

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