Home » PANDA » PandaRoot » Bugs, Fixes, Releases » Crash in genfit/geane
| Re: Crash in genfit/geane [message #9260 is a reply to message #9259] |
Fri, 28 August 2009 20:02   |
StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
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first-grade participant |
From: *52-82-r.retail.telecomitalia.it
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Under suggestion of Lia, I have modified the geane parameters for the material "air", adding the following lines in gconfig/Geane.C:
TGeoMedium *o=gGeoManager->GetMedium("air");
o->SetParam(3, .4);
to change the maximum angle of deflection inside the magnetic field.
In this case the analysis proceeds without errors. If I use larger values, such as 0.5 or greater, then I have the crash exactly at the same pointx.
I don't know if maybe it could be good to change this option for the common geane parameters, or if this is just a hard fix...
ADDED 29/08/09
I have tried with a different data set and I have followed in the same problem,. This time I had to go to 0.05 in orer to get rid of that crash. And, once I am applying such lower cuts, I have seen that there are more warnings such as:
FitterException thrown with excString:
cov_is_zero
in line: 257 in file: /home/stefano/july09/pandaroot/genfit/Kalman.cxx
with fatal flag 0
FitterException Info Output
===========================
===========================
FitterException thrown with excString:
GEANE propagation failed
in line: 272 in file: /home/stefano/july09/pandaroot/trackrep/GeaneTrackRep.cxx
with fatal flag 1
FitterException Info Output
===========================
===========================
Then maybe gendoit is skipping those tracks/reco hits.
[Updated on: Sat, 29 August 2009 14:19] Report message to a moderator |
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