[VMC] VMC/Geant3 and new TGeoManager ?

From: Laurent Aphecetche (aphecetc@in2p3.fr)
Date: Sat Jul 03 2004 - 15:07:46 MEST


Hi,

I've installed (*) root + vmc + geant3 from CVS head (as of yesterday), 
and I started with the geant4_vmc/examples.

First, to get the libgeant321.so working, I had to implement the (empty) 
G3Volume::Copy(), otherwise the lib would not load because of this 
missing symbol.

Then, E01/E02/E03 are working fine as they are.

But I'd like to use the TGeoManager interface (because I suspect this is 
the one which will be used in the future, e.g. to get Fluka in the game, 
is that right ?). So I recompiled geant3 using -DWITHROOT. And then E01 
is failing :

  *** Break *** segmentation violation
  Generating stack trace...
  0x0117fa92 in TGeoManager::FindNode(double, double, double) + 0xaa 
from /opt/cern/root/dev/lib/libGeom.so
  0x402738f4 in gmedia_ at /opt/cern/root/dev/include/TGeoManager.h:349 
from /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x40163ccf in g3ltrac_ at gtrak/gltrac.F:196 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x401778a5 in gtreveroot_ at gtrak/gtreveroot.F:169 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x40275afa in gutrev_ at TGeant3/TGeant3gu.cxx:558 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x40256d4f in jumpt0_ at minicern/jumptn.c:79 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x4007efa1 in g3trig_ at gbase/gtrig.F:62 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x4026edc2 in TGeant3::Gtrig() at TGeant3/TGeant3.cxx:2713 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x402732d5 in TGeant3::ProcessEvent() at TGeant3/TGeant3.cxx:5739 from 
/opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x40273236 in TGeant3::ProcessRun(int) at TGeant3/TGeant3.cxx:5718 
from /opt/cern/root/cvs/geant3/lib/tgt_linux/libgeant321.so
  0x01e5bf46 in Ex01MCApplication::RunMC(int) + 0x28 from 
/opt/cern/root/cvs/geant4_vmc/lib/tgt_Linux/libexample01.so
  0x01e60b43 in <unknown> from 
/opt/cern/root/cvs/geant4_vmc/lib/tgt_Linux/libexample01.so

Is this expected (e.g. the TGeo/vmc is not supposed to work yet) or not ?

Thanks for your help,

(*)
My system is a Fedora Core 1 one :
uname -a : Linux xxxx  2.4.22-1.2174.nptl #1 Wed Feb 18 16:38:32 EST 
2004 i686 i686 i386 GNU/Linux
root-config --version : 4.00/07
gcc --version : gcc (GCC) 3.3.2 20031022 (Red Hat Linux 3.3.2-1)

-- 
Dr. Laurent APHECETCHE (mailto:aphecetc@in2p3.fr) (IN2P3-CNRS)
SUBATECH-EMN-4 rue Alfred Kastler-BP 20722-44307 NANTES cedex 03
TEL (+33/0) 2 51 85 84 17 - FAX (+33/0) 2 51 85 84 24 (France)
Collaboration PHENIX http://www.phenix.bnl.gov/~aphecetc



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