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

[Simon Stute]

Hi all,

The number associated to each tree give the order in which the tree was
saved at different time in your simulation.
So it is the same tree, but containing different number of entries.
Each tree with a given number is included in the trees with a higher number.
So the tree with the highest number is the final tree containing all events.
And the tree with no number points to this final tree.

I hope not to be wrong, but I think it is so.

Cheers,
Simon

On Fri, Apr 22, 2011 at 11:13 AM, Lena Thomas <lena.thomas at cumcui.de> wrote:

> Hi David,
>
> it seems that I have the same or a similar problem: in one of my
> PET-simulations I got several hit-trees. In another PET-simulation I got
> several hit-trees and several singles-trees. My root-files are about 500MB.
> However, Didier wrote: "Normally GATE creates 1 hit tree and 1 single tree
> by simulation".
> Can anybody explain the reason for these differences?
>
> I use Gate_v6.0_p01, geant4.9.3.p03, root 5.2.6/00 on ubuntu.
>
> Thanks
> Lena
>
>
>
>
> 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.
>>
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>
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