[Rivet] Pluggable analyses branch

[Lars Sonnenschein]

Hello Andy

On Wed, 12 Sep 2007, Andy Buckley wrote:

> Lars Sonnenschein wrote:
> > Hello Andy
> > thank you. It is compiling and linking now.
> > Unfortunately the head version of RivetGun 
> > (even after I added there the needed Rivet INC path) complains:
> 
> > Is the Commandline code incompatible with the pluggable Rivet code?
> 
> Yes :) I've only changed Rivet, and these changes affect the whole 
> analysis handling mechanism, as used by RivetGun. I'll soon work on a 
> RivetGun branch to work with the new Rivet, but for now you can write a 
> HepMC event file using e.g. "rivetgun ... -o events.hepmc" and process 
> it with "rivet ... events.hepmc". Can you check that this works for you 
> and then I'll merge the branch back to trunk once RivetGun is compatible.

I ran an analysis with Pythia8 over 1k events and plugged it into Rivet.
The Rivet.aida file is produced and its content looks alright.

  
> 
> If you haven't run "make install" for Rivet, then you'll need something 
> like "RIVET_ANALYSIS_PATH=./src/Analysis/.libs ./src/rivet ..." so that 
> it searches the right directory to find the standard analysis library. 
> You could make your own analysis library, libRivetFoo.so, put it in any of

Hm, actually I did the make install

> 
>   * the current directory
>   * the directory where libRivet.so is installed
>   * a directory listed in RIVET_ANALYSIS_PATH
>   * a directory listed in RIVET_ANALYSIS_PATH
> 
> and rivet will use its analyses if they provide the same loading 
> mechanism as libRivetAnalysisStd.

OK.

I would like to implement the CDF jet shape analysis.
To start with I could use the Salam Cacciari fast jet package.
But if it is not installed the analysis has to be protected against
linking since undefined symbols would appear. How would I do this in a 
clean way (the analysis would be pluggable and somewhere I would have to 
check if the fastjet package is available).

	Lars
  
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Lars Sonnenschein    
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