[ROOT] Algorithms/Modules/Packages

From: John Pretz (pretz@umdgrb.umd.edu)
Date: Fri Jul 18 2003 - 01:23:40 MEST


Hello fellow ROOTers,

The experiment I am working on (Icecube) is considering different 
possibilties for an offline simulation/reconstruction/analysis framework.

Of course there is the immediate problem that people mean different things 
by framework.  The thing that I think people want is some sort of Analysis 
Module which are largly indpendent and can operates on the event stream.  
The example that crops up alot is Gaudi, where users overload an Algorithm 
class, and the framework is responsible for calling the right methods of 
the Algorithm at the right times.

My first reaction is to just write some experiment-specific extensions to 
ROOT and provide whatever people want.  (Indeed I have done so in draft 
form.  With the ROOT tools it was easy.  Less than 700 lines.)  Nevertheless, 
I have been commissioned to find out what already exists, so I pose the 
question to you all:

Do you know of any (free) experiment-independent extensions to ROOT that 
have something like Gaudi's Algorithm?  The 'experiment-independent' is 
important because I have no shortage of experiment-dependent examples.

Thank you for any help you can give.

John Pretz

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