Re: Re: [ROOT] geant3_vmc undefined symbol: _ZN10TVirtualMC14DefineParticleEiPKc15TMCParticleTypeddd

From: Stefano Dusini <stefano.dusini_at_pd.infn.it>
Date: Wed, 22 Apr 2009 12:42:21 +0200

I have check inside the code of geant3_vmc_1.10 and DefineParticle has two implementation

  //______________________________________________________________________

Bool_t TGeant3::DefineParticle(Int_t pdg,const char* name,TMCParticleType type,

                       Double_t mass, Double_t charge, Double_t lifetime)

{
// Old function definition, now replaced with more arguments

   TVirtualMC::DefineParticle(pdg, name, type, mass, charge, lifetime);

   return false;
}

//______________________________________________________________________
Bool_t TGeant3::DefineParticle(Int_t pdg,const char* name, TMCParticleType mcType,

                       Double_t mass, Double_t charge, Double_t lifetime,
                       const TString& /*pType*/, Double_t /*width*/,
                       Int_t /*iSpin*/, Int_t /*iParity*/, Int_t 
/*iConjugation*/,
                       Int_t /*iIsospin*/, Int_t /*iIsospinZ*/, Int_t 
/*gParity*/,
                       Int_t /*lepton*/, Int_t /*baryon*/,
                       Bool_t /*stable*/, Bool_t /*shortlived*/,
                       const TString& /*subType*/,
                       Int_t /*antiEncoding*/, Double_t /*magMoment*/,
                       Double_t /*excitation*/)

{
//
// Set a user defined particle
// Function is ignored if particle with specified pdg
// already exists and error report is printed.
// ---

   // Check if particle with specified pdg already exists    // in TGeant3
   if (IdFromPDG(pdg) > 0) {

     Error("SetParticle", "Particle already exists.");
     return kFALSE;

   }

   // Check if particle type is known to Geant3    Int_t itrtyp = TransportMethod(mcType);    if (itrtyp < 0) {

     Error("SetParticle", "Unknown particle transport.");
     return kFALSE;

   }

   // Add particle to Geant3
   Gspart(fNG3Particles++, name, itrtyp, mass, charge, lifetime);

   // Add particle to TDatabasePDG
   // (if it does not yet exist here)
   if (!TDatabasePDG::Instance()->GetParticle(pdg))

     TDatabasePDG::Instance()
       ->AddParticle(name, name, mass, kTRUE, 0, charge*3,
                     ParticleClass(mcType).Data(), pdg);

   // Resize fPDGCode table if needed
   if ( fNPDGCodes >= fPDGCode.GetSize() )      fPDGCode.Set( fPDGCode.GetSize() + 100);

   fPDGCode[fNPDGCodes++] = pdg;

   return kTRUE;
}

In my code I use the first implementation.

To my understanding (sorry but I'm not a c++ expert) the first one points to ROOT while the second not. I have check inside root src code but I did not find any implementation of TVirtualMC::DefineParticle only the definition in TVirtualMC.h.

Do I have to use in my code the second implementation of TGeant3::DefineParticle ?

Thanks
Stefano
Andrei Gheata wrote:

> Stefano, looks like your G3 compilation is inconsistent. Just refresh 
> the geant3 directory and recompile it from scratch. Make also sure that 
> the library you compile is the first one accessible in LD_LIBRARY_PATH 
> in case you have multiple versions.
> 
> Cheers,
> Andrei
> 
> Stefano Dusini wrote:
>> Hi,
>>
>> I have recompiled root with
>>
>> --enable-pythia6 --with-pythia-libdir=$KITS_DIR/pythia6
>>
>> recompiled geant3_vmc_1.10
>>
>> but the keep crash with the same error
>>
>> /sps/opera/scratch/dusini/sw/OpRelease/3.1/OpSim/v7r4/Linux/opsim.exe: 
>> symbol lookup error: 
>> /sps/opera/scratch/dusini/sw/OpRelease_fluka/kits/geant3_vmc_1.10/lib/tgt_linux/libgeant321vmc.so: 
>> undefined symbol: 
>> _ZN10TVirtualMC14DefineParticleEiPKc15TMCParticleTypeddd
>>
>> This error occur at the point where I define a new particle
>>
>> //   DefineParticle(PDGCode, Name, Type, Mass, Charge, Lifetime)
>> gMC->DefineParticle(kOpPDGDPlus, "OPERA D +", kPTMuon, kOpMassDPlus, 
>> 1., 1e+12);
>>
>> where gMC is a TGeant3TGeo object.
>>
>> regards,
>> Stefano
>>
>> Rene Brun wrote:
>>> TMCParticle class is in libEGPythia6.
>>> see top right corner of: http://root.cern.ch/root/html/TMCParticle.html
>>>
>>> Rene Brun
>>>
>>> Stefano Dusini wrote:
>>>> I'm trying to upgrade our (OPERA) detector simulation software to 
>>>> use ROOT v5.23 and therefore I have also upgraded the geant3_vmc 
>>>> version to v1.10. I have also modify the code to use TVirtualMC as 
>>>> the only interface to the MC transportation code. But at run time I 
>>>> get this error
>>>>
>>>> /sps/opera/scratch/dusini/sw/OpRelease/3.1/OpSim/v7r4/Linux/opsim.exe: 
>>>> symbol lookup error: 
>>>> /sps/opera/scratch/dusini/sw/OpRelease_fluka/kits/geant3_vmc_1.10/lib/tgt_linux/libgeant321vmc.so: 
>>>> undefined symbol: 
>>>> _ZN10TVirtualMC14DefineParticleEiPKc15TMCParticleTypeddd
>>>>
>>>> In fact using
>>>>
>>>> nm -u libgeant321vmc.so
>>>>
>>>> I see that
>>>>
>>>> U _ZN10TVirtualMC14DefineParticleEiPKc15TMCParticleTypeddd
>>>>
>>>> where the U means (from nm man page) that the symbol is undefined.
>>>>
>>>> What is wrong?
>>>>
>>>> The geant3_vmc library has been build just with
>>>>
>>>> gmake
>>>>
>>>> and the environmental variable $ROOTSYS pointing to the ROOT v5.23 
>>>> directory and $ROOTSYS/lib added to the $LD_LIBRARY_PATH and 
>>>> $ROOTSYS/bin added to $PATH.
>>>>
>>>> Do I have to specify something else when I compile geant3_vmc?
>>>> Do I have to use some special switch when I compile root?
>>>>
>>>> Thanks a lot
>>>> Stefano
>>>
>>
>>

-- 
__________________________________________________________________
Stefano Dusini, INFN Padova, Via Marzolo, 8 I-35131 Padova, Italy
Phones: +39-049-827-7312 +39-049-789-7676. Handy +39-348-8137991






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Received on Wed Apr 22 2009 - 12:42:23 CEST