Re: [fluka-discuss]: FLUKA compilation and Pion fluence from FLUKA online manual

From: Paola Sala <paola.sala_at_mi.infn.it>
Date: Thu, 17 Jun 2021 10:34:08 +0200

Hello

the messages during compilation look innocent.

About your input:

I would suggest to use the COMBNAME option for the geometry, it is much
more easy to use.

Also, my personal preference goes to a fixed format for the rest of the
input, unless one has to input values with a large number of significant
decimals, exceeding the 10 digit field.

Anyhow:

-In the BEAMPOS card  there is a spurious  ' ' field at the end. In free
format,

  character strings - keywords and SDUMs - must NOT be put between
quotes. Just leave the field empty for an empty SDUM

- In the GEOBEGIN card all what's are missing, I mean that in free format

   Zero values must be given explicitly or as empty places between two
non-blank separators. As it is in your input, the COMBINAT string is
taken as if it   was  the value of what(1)

- GEOBEGIN must be followed by the geometry title card, in fixed format
since you asked for it (see the manual, in the combinatorial geometry
section)

- USRBDX : if logaritmic, the minimum value cannot be zero

- USRBDX : Flair gives one more error message, that should be more of a
warning: the "zero" value for maximum angle is indeed understood by
FLUKA that sets 2pi or 4pi by default . Flair instead thinks that the
max is not set


Hope this helps

Paola

On 6/12/21 4:01 PM, Phillip Pare wrote:
> Dear Experts
>
> As a newcomer to FLUKA and Flair I tried to do two things:
> Firstly I compiled the code using gfortran. This produced the errors
> and warnings in the attached filed. I am not sure if these errors are
> significant as the code still seemed to run in a fashion.
>
> Secondly I tried to duplicate the pion fluence example in section
> 2.2.13 of the manual.
> ( http://www.fluka.org/content/manuals/online/2.3.13.html
> <http://www.fluka.org/content/manuals/online/2.3.13.html> )
> I used the number based free format in the attached example.inp file.
> I first tried to run it from the command line and the example001.out
> file, which I have attached, was produced.
> I then tried to load it using Flair which generated the following
> Ouput warnings and errors which are included below. As I am still
> learning the code, I was not able to correct the warnings and errors.
>
> Any help and advice with regard to the gfortran installation and
> in getting this example to work would be much appreciated.
>
> Kind regards
>
> Phillip Pare
>
> Started 2021.06.12 15:58:32
> WARNING: Invalid what(s)=[1]
> *
> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> GEOBEGIN    COMBINAT
>     0    0               A simple Be target inside vacuum
> WARNING: Invalid what(s)=[8, 10, 11, 'Assertion failed: w(10)>w(11)']
> * Boundary crossing fluence in the middle of the target (log
> intervals, one-way)
> USRBDX           99.      209.      -47.        3. 4.      400.piFluenUD
> USRBDX           50.       0.0       50.       0.0  0.0       10. &
> WARNING: Invalid what(s)=[8, 10, 11, 'Assertion failed: w(10)>w(11)']
> * Boundary crossing current in the middle of the target (log
> intervals, one-way)
> USRBDX           -1.      209.      -47.        3. 4.      400.piCurrUD
> USRBDX           50.       0.0       50.       0.0  0.0       10. &
>
> COMBINAT do not exist
> *
> ..+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
> GEOBEGIN    COMBINAT
>     0    0               A simple Be target inside vacuum
>
>
> Phillip Pare
>
> S.E.
>
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Received on Thu Jun 17 2021 - 12:06:32 CEST

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