Introduction to Geant4
Lectures by Andrea dell'Acqua (CERN)
From the Ann Arbor Workshop on Geant4
26 February to 2 March, 2001.
Exercise N01
The standard Geant4 distribution comes with a set of exercises (both for
the novice and the advanced user). The simplest exercise (ExN01 in
the novice category) is quite useful for testing the Geant4 installation
and to see a Geant4 program (although quite trivial) at work. ExN01
begins in Lecture
2, Installation of Geant4, on slide number
12.
Steps ExN01
A plate calorimeter, three geantinos (geometrical
probes) are shot into the experiment. Setup at slightly different
angles.
A dump of the event is produced.
Set all variables needed for running (don't forget
LD_LIBRARY PATH)
Copy the example code below:
cp -r $G4INSTALL/examples/novice/N01
. cd N01 export G4WORKDIR='pwd' gmake
to run:
bin/Linux-g++/exampleN01
Definitions
G4SYSTEM is the variable
one must set to tell gmake which system and compiler you are running.
Shared libraries are
intended to be linked with executing processes at run-time rather than
during the link phase of executable development.
Helpful Links
Source code
(in order to install the Geant4 libraries on your system)
For the latest version of Geant4 that is maintained and publicly available
on the AFS directory:
/afs/cern.ch/atlas/project/geant4/current
To see how GNUmake works in Geant4 view slide numbers
13
and
14.
Checklist
Did you install the CLHEP library and code?
Did you try to build an example? If not, start
on slide number 8.
Did you decide to use a shared library? Try
slide number
10
for how to do this.
