Problem 1767

Summary:	Apparent anomalies observed in the execution of an electron backscattering simulation application with G4EmStandardPhysicsGS and Geant4 10.2-beta
Product:	Geant4	Reporter:	Maria.Grazia.Pia
Component:	physics_lists	Assignee:	Vladimir.Ivantchenko
Status:	RESOLVED FIXED
Severity:	normal	CC:	Gunter.Folger, Vladimir.Ivantchenko
Priority:	P5
Version:	other
Hardware:	PC
OS:	Linux

Description Maria.Grazia.Pia 2015-07-08 20:34:51 CEST

Apparent anomalies are observed in the execution of an electron backscattering simulation application with G4EmStandardPhysicsGS and Geant4 10.2-beta.

Source code, makefile, macro to reproduce the apparent anomalies and sample output exhibiting anomalies are in https://github.com/mariagraziapia/bssim, tag bssim-v3.0.

Example for testing with G4EmStandardPhysicsGS:

cd bssim
source setup/setup102b01.csh
gmake clean
gmake
$G4WORKDIR/Linux/g++/bssim crash_phgs_std.mac
or
$G4WORKDIR/Linux/g++/bssim nocrash_phstd_std.mac

crash_phgs_std.mac produces several anomalous warning messages and a segmentation fault, when the simulation is executed on SL6 PCs. It is provided for testing purpose.

nocrash_phstd_std.mac runs smoothly to the end in the same simulation configuration as above, except for using G4EmStandardPhysics instead of G4EmStandardPhysicsGS. It is provided for testing purpose.

Sample output encompassing anomalies is log_phgs_102beta.txt.gz.

Comment 1 Vladimir.Ivantchenko 2015-07-10 16:33:11 CEST

Dear Maria Grazia,

thanks for this bug report. The issue is understood and the fix is submitted into the development version.

VI