[Gate-users] Problems with Root Output: Hits;9 Hits;10

[irene.torres at ific.uv.es]

Hi Didier,

I am having a similar behavior in the output of the simulations as  
David Watts commented it. When I open the root-file after the  
simulation I observed two trees of Hits and Singles. I have checked  
the entries of these trees and I get the following:

Hits,351 --> Entries: 351000
Hits,352 --> Entries: 351368
Singles,143--> Entries: 143000
Singles,144--> Entries: 143227

Changing the activity (from 100 kBq to 10 kBq) and also the  
acquisition time (from 25 s to 250 s) to keep the same emitted events,  
I got something very similar:

Hits,350 --> Entries: 350000
Hits,351 --> Entries: 350956
Singles,143--> Entries: 143000
Singles,144--> Entries: 143343

Then changing the activity and time again (from 10 kBq to 200 kBq and  
250 s to 3 s), I can see the two trees again, this time with different  
numbers:

Hits,85 --> Entries: 84231
Hits,84 --> Entries: 84000
Singles,35--> Entries: 34467
Singles,34--> Entries: 34000

When I am using the root-macros to analyze the output, the number of
entries corresponds always to the highest (and not round) number. Is
this a problem? Or just a representation that Root is doing without
any consequences?

Thanks in advance!

Best regards,

Irene


Quoting Didier Benoit <benoit at imnc.in2p3.fr>:

> Hi David,
>
> Do you create 1 ROOT file for your total simulation?
> If yes, could you try to split your simulation, and to create a ROOT
> file for each run, I never had your problem by this way. Tell me it
> works.
>
> Kind Regards,
> Didier
>
> On 18/04/2011 16:52, David Watts wrote:
>> I'm having big problems getting my root output to work. I've tried   
>> with my own
>> simulations, and the ones of the examples, and I have similar problems.
>>
>> The simulation(s) seem to run just fine. The root output file is created but
>> when I open it what I see is multiple Hits and Singles files,   
>> namely, that is
>> says Hits;11 or Hits;12 and Singles;2 and Singles;3 and things like that.
>> There are often data inside, and each has a different amount of entries (the
>> lower valued file often has round number of entries like 5000), but how am i
>> supposed to know which file is right??
>>
>> Worse still, the problem seems to depend on the size of the output data. Ie,
>> without changing anything in the macro except the source activity,   
>> I go from a
>> normal output, say Hits;1, Singles;1, etc... to Hits; 9 and Hits; 10...
>>
>> It's as if Root doesn't like big files and is somehow splitting the data and
>> only showing the last part of something. I say this cause the weirdness
>> increases with the activity of my source. However, my root files   
>> are only about
>> 28MB large at best... and problems come even when they are a few MB.
>>
>> Plus, my coincidence and delay trees show leaves but they are not   
>> filled (they
>> don't plot anything).
>>
>> I'm running Gate v6.1 and Geant 4.9.4p01... and Root 5.28/00b on Kubuntu
>> 10.04. I have seen the exact same problems with Gate 6.0 and Geant 4.9.2 and
>> several other versions of Root like 5.22 and 5.24.
>>
>> I'm at my wits end with this having tried many things, including   
>> the complete
>> reinstall of all software starting from CLHEP, upgrading to the latest
>> versions, but it hasn't changed ANYTHING!
>>
>> Has anyone seen this problem before???
>> Please help! I've already spent two weeks fighting this bug and seems no one
>> has this problem.
>>
>> Cheers,
>> Dave.
>>
>> _______________________________________________
>> Gate-users mailing list
>> Gate-users at lists.opengatecollaboration.org
>> http://lists.opengatecollaboration.org/mailman/listinfo/gate-users
>
>
> -- 
> ----------------------------------------------------------------
> Didier BENOIT, GATE Engineer
> Imagerie et Modélisation en Neurobiologie et Cancérologie (IMNC)
> IMNC – UMR 8165 CNRS – Université Paris 7 – Université Paris 11
> Campus d’Orsay
> Bâtiment 440
> 91406 ORSAY Cedex
>
> Tél : (33) 1 69 15 68 76
> E-mail : benoit at imnc.in2p3.fr
> http://www.imnc.in2p3.fr
> ----------------------------------------------------------------
>
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Irene Torres Espallardo, PhD

IFIC - Instituto de Física Corpuscular
       CSIC / Universidad de Valencia
       Edificio Institutos de Investigacion
       Apartado de Correos 22085
       E-46071 Valencia
       Spain

Tel.:     +34 96 354 38 55
Email:   irene.torres at ific.uv.es



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