manTree Root Trees & Analysis Framework

Introduction

The manTree package contains a set of classes for storing physics objects for final analysis. It can be used outside of athena, for example in SFrame. The code is in svn and the html descriptions of the classes can be found here. The recommended way to compile the package is to follow the instructions below.

Analysis Framework

In order to do a complete analysis, there are a set of packages provided by ATLAS for applying common prescriptions. These packages are made available through the TopRootCore package and we interface to these packages using the topUtils package. If you are updating from a previous version of topUtils, please see ManTreeRootCoreConvert.

First Time Setup

The following instructions should be followed to setup up & compile sframe, manTree and the common analysis packages:

Commands to be entered into the terminal start with '>'

Export CERN_USER variable:
> export CERN_USER=yourcernlxplususername

Setup root core (note this also sets up root v5.28.00):
> source /nfs/software/AtlasSoftware/RootCore/Root_v528/RootCore/scripts/setup.sh

Export SVNMAN variable:
> export SVNMAN=svn+ssh://$CERN_USER@svn.cern.ch/reps/atlasgrp/Institutes/Manchester

Go to a directory where you want to work from:
> cd somedir

Check out sframe:
> svn co https://sframe.svn.sourceforge.net/svnroot/sframe/SFrame/tags/SFrame-03-04-23 SFrameArea
> cd SFrameArea

Patch sframe:
> patch core/include/SCycleBaseNTuple.icc /afs/hep.man.ac.uk/g/atlas/SFramePatches/16June11/SCycleBaseNTuple.icc.patch

Build sframe:
> source ./setup.sh
> make

Check out manTree packages:
> svn co $SVNMAN/SFrame/manTree/trunk manTree
> svn co $SVNMAN/SFrame/manTreeSFrameBase/trunk manTreeSFrameBase
> svn co $SVNMAN/SFrame/topUtils/trunk topUtils
> svn co $SVNMAN/SFrame/exampleManTreeCycle/trunk exampleManTreeCycle

Build manTree packages:
> cd manTree
> make
> cd ../manTreeSFrameBase
> make
> cd ../topUtils
> make
> cd ../exampleManTreeCycle
> make

Make a soft link to the RootCore par file (needed for proof running):
cd $SFRAME_LIB_PATH
ln -s $ROOTCOREDIR/../RootCore.par .

Setup for Each Session

Each time you start a new terminal and want to work on the analysis you need to do the following steps:

Go to your sframe directory:
> cd pathto/SFrameArea

Export CERN_USER variable:
> export CERN_USER=yourcernlxplususername

Setup root core (also sets up root v5.28):
> source /nfs/software/AtlasSoftware/RootCore/Root_v528/RootCore/scripts/setup.sh

setup sframe:
> source ./setup.sh

Running the Example Cycle

There is an example sframe cycle in exampleManTreeCycle. It can be run with the following (don't forget the setup commands):

> cd $SFRAME_DIR
> cd exampleManTreeCycle
> sframe_main config/TestCycle_config.xml

Making manTrees

Instructions for making manTrees are at ManTreeMaking.

-- MarkOwen - 01-Sep-2011