geant4
Table of Content
About
Geant4 is a toolkit for the simulation of the passage of particles through matter. Its areas of application include high energy, nuclear and accelerator physics, as well as studies in medical and space science. The two main reference papers for Geant4 are published in Nuclear Instruments and Methods in Physics Research A 506 (2003) 250-303, and IEEE Transactions on Nuclear Science 53 No. 1 (2006) 270-278.
Versions and Availability
Module Names for geant4 on qb
Machine | Version | Module Name |
---|---|---|
qb2 | 10.01 | geant4/10.01/GCC-4.9.0 |
▶ Module FAQ?
The information here is applicable to LSU HPC and LONI systems.
Shells
A user may choose between using /bin/bash and /bin/tcsh. Details about each shell follows.
/bin/bash
System resource file: /etc/profile
When one access the shell, the following user files are read in if they exist (in order):
- ~/.bash_profile (anything sent to STDOUT or STDERR will cause things like rsync to break)
- ~/.bashrc (interactive login only)
- ~/.profile
When a user logs out of an interactive session, the file ~/.bash_logout is executed if it exists.
The default value of the environmental variable, PATH, is set automatically using SoftEnv. See below for more information.
/bin/tcsh
The file ~/.cshrc is used to customize the user's environment if his login shell is /bin/tcsh.
Modules
Modules is a utility which helps users manage the complex business of setting up their shell environment in the face of potentially conflicting application versions and libraries.
Default Setup
When a user logs in, the system looks for a file named .modules in their home directory. This file contains module commands to set up the initial shell environment.
Viewing Available Modules
The command
$ module avail
displays a list of all the modules available. The list will look something like:
--- some stuff deleted --- velvet/1.2.10/INTEL-14.0.2 vmatch/2.2.2 ---------------- /usr/local/packages/Modules/modulefiles/admin ----------------- EasyBuild/1.11.1 GCC/4.9.0 INTEL-140-MPICH/3.1.1 EasyBuild/1.13.0 INTEL/14.0.2 INTEL-140-MVAPICH2/2.0 --- some stuff deleted ---
The module names take the form appname/version/compiler, providing the application name, the version, and information about how it was compiled (if needed).
Managing Modules
Besides avail, there are other basic module commands to use for manipulating the environment. These include:
add/load mod1 mod2 ... modn . . . Add modules rm/unload mod1 mod2 ... modn . . Remove modules switch/swap mod . . . . . . . . . Switch or swap one module for another display/show . . . . . . . . . . List modules loaded in the environment avail . . . . . . . . . . . . . . List available module names whatis mod1 mod2 ... modn . . . . Describe listed modules
The -h option to module will list all available commands.
Module is currently available only on SuperMIC.
Usage
On SuperMike, softenv defines some variables which point at the library home directory. Use soft-dbq to determine it's name, then use it to add a link option to your build. You may see something like this (the output has been edited for brevity):
$ soft-dbq +geant4-4.10.00.p02-gcc-4.4.6 ...... The following files will be sourced: /usr/local/packages/cern/geant-4.10.00.p02/bin/geant4.[csh|sh] The following environment changes will be made: CLHEP_INCLUDE = /usr/local/packages/cern/geant-4.10.00.p02/include GEANT4_HOME = /usr/local/packages/cern/geant-4.10.00.p02 LD_LIBRARY_PATH = ${LD_LIBRARY_PATH}:/usr/local/packages/cern/geant-4.10.00.p02/lib64 PATH = ${PATH}:/usr/local/packages/cern/geant-4.10.00.p02/bin ......
Source the geant4.[csh|sh] file before using it.
$source /usr/local/packages/cern/geant-4.10.00.p02/bin/geant4.[csh|sh]
On QB-2, module defines the variables. Use module show to show the names.
$ module show geant4 ...... prepend-path PATH /usr/local/packages/cern/geant4-10.00.p02/bin prepend-path LD_LIBRARY_PATH /usr/local/packages/cern/geant4-10.00.p02/lib ......
Source the geant4.[csh|sh] file before using it.
$source /usr/local/packages/cern/geant4-10.00.p02/lib/bin/geant4.[csh|sh]
Resources
Last modified: August 21 2017 10:47:37.