[Rivet] segmentation fault with pythia8

[Lars Sonnenschein]

I'm afraid I don't get that far with the head version.
For some reason my specified AGILE_GEN_PATH variable gets ignored
and from the LCG generators I get error messages like:

[lxbuild021] ~/scratch0/cedar/AgileCommit > rivetgun -g Pythia6:413 -a 
CDF_2007_S7057202 --beam1 PROTON --beam2 ANTIPROTON --mom1 980. --mom2 
980. -P ../rivetgun_params/fpythia-TuneApthatmin30.params
RivetGun.Main: INFO  Requested generator = Pythia6:413
rivetgun: symbol lookup error: 
/afs/cern.ch/sw/lcg/external/MCGenerators/pythia6/413/slc4_ia32_gcc34/lib/libpythia6.so: 
undefined symbol: s_cmp

(Same for Herwig. Pythia8 does not show up as available, but that's 
because I configured with my private Pythia8 installation, I assume)

	Lars


On Mon, 7 Jul 2008, Andy Buckley wrote:

> Holger Schulz wrote:
> 
> > But if I switch on a process like
> >             rivetgun -g Pythia8:108 -n 1000 -P lep1.params -p 
> > "WeakSingleBoson:ffbar2gmZ=on"
> > there is a segmentation fault at the end after finalize() is called.
> > 
> > here is some gdb output:
> 
> >         #1  0x9d21165b in AGILe::CCPythia::~CCPythia$delete () from 
> > /mnt/eeh/hschulz/Software/lib/libAGILeCCPythia.so
> >         #2  0xafee85aa in AGILe::Loader::destroyGen () from 
> > /users/eeh/hschulz/Software/lib/libAGILe.so.0
> >         #3  0x08053dba in Rivet::generate ()
> >         #4  0x080500ef in main ()
> 
> Looks to me like a memory corruption, but I'm not sure how: there isn't
> even a pointer in that class that could get corrupted, nor an explicit
> "delete" call!
> 
> > Has anyone observed something similar, or is my installation  broken?
> 
> I haven't tried yet ... Lars, do you see this? Any suggestions?
> 
> > Furthermore, it seems as if prof-tune doesn't handle statements like -p 
> > "WeakSingleBoson:ffbar2gmZ=on"
> > properly, since the output in out.log then gives lines as such:
> > 
> >              PYTHIA Abort from Pythia::next: not properly initialized so 
> > cannot generate events             
> >              Event generation aborted prematurely
> > Reading these parameter settings from a file with -P doesn't work 
> > either. On the other hand,
> > the parameter values that shall be varied are handed over correctly.
> 
> I'm assuming that this is a legacy of ":" being a valid param definition
> character. I'll look into it. Again, Lars, had you noticed this being a
> problem?
> 
> Andy
> 
> 

-- 

 
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Lars Sonnenschein    
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