Speaker
Aatos Heikkinen
(Helsinki Institute of Physics)
Description
We present an investigation to validate Geant4 [1] Bertini cascade
nuclide production by proton- and neutron-induced reactions on various target
elements [2].
The production of residual nuclides is calculated in the framework of an
intra-nuclear cascade, pre-equilibrium, fission, and evaporation model [3].
A 132 CPU Opteron Linux cluster running the NPACI Rocks Cluster
Distribution [4, 5] based on Red Hat Enterprise Linux has been used to
compute cross-section results for the Bertini cascade. We have
used the new features of the Parallel ROOT Facility (PROOF), distributed
with ROOT version 5, to analyse the cross-section data. Automatic class
generation for PROOF event data-analysis has been used on the Rocks
cluster [6, 7]. Performance results for the cluster as measured with the
ProofBench package are also presented.
[1] Geant4 Collaboration, "GEANT4: A Simulation Toolkit",
Nuclear Instruments and Methods in Physics Research,
NIM A 506 (2003), 250-303.
[2] A. Heikkinen, "Validation of Geant4 Bertini cascade nuclide production",
Proceedings of FrontierScience 2005, Milan, Italy, September 12-17, 2005.
[3] A. Heikkinen, N. Stepanov, and J.P. Wellisch,
"Bertini intra-nuclear cascade implementation in Geant4",
arXiv: nucl-th/0306008.
[4] P. Papadopoulos, M. Katz, and G. Bruno, "NPACI Rocks: Tools and
Techniques for Easily Deploying Manageable Linux Clusters",
Concurrency Computat: Pract. Exper. 2002; 00:1-20.
[5] A. Heikkinen and T. Linden, "Validation of the GEANT4 Bertini
Cascade model and data analysis using the Parallel ROOT Facility on
a Linux cluster", Proceedings of Computing in High Energy Physics,
CHEP'04, Interlaken, Switzerland, 26.10.-1.10. 2004.
[6] F. Rademakers, M. Goto, P. Canal, R. Brun, "ROOT Status and Future
Developments", arXiv: cs.SE/0306078.
[7] M. Balli et al., "Parallel Interactive and Batch HEP-Data Analysis with PROOF",
Proceeding of ACAT05, May 22 - 27, 2005
DESY, Zeuthen, Germany.
Primary author
Aatos Heikkinen
(Helsinki Institute of Physics)
Co-author
Dr
Tomas Linden
(Helsinki Institute of Physics)
