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[[_TOC_]]
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In this tutorial we will use Geant4 version 11.3.2, compiled with the support of multithreading, GDML and Qt5 based Gui.
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In this tutorial we will use Geant4 version 11.4.0, compiled with the support of multithreading, GDML and Qt5 based Gui.
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The repository scripts was updated for Geant4 version 11.3.2,
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but if you have version 11.3.1 it will work also.
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The repository scripts was updated for Geant4 version 11.4.0,
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if you have version 11.3.2 it will work also, but GUI can look
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differently and defaul visual driver changed to TGS in 11.4.0
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On Linux systems we use a compiled version of Geant4 and a binary distribution for ROOT installations.
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Below we provide detailed instructions for the installation on Ubuntu 22.04.
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Below we provide detailed instructions for the installation on Ubuntu 24.04.
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The installation for other Debian and Ubuntu like Linux'es will be similar but the names of libraries can be slightly different. On Linux you can use GNU *c++*, *clang* or Intel *icc* compilers, we describe only the GNU *g++* installation.
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The installation was tested Windows 11 WLS2 *Ubuntu* application and gcc 13.3.
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The installation also tested Windows 11 WLS2 *Ubuntu* application and gcc 13.3.
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## Ubuntu 24.04 Requirements
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| ... | ... | @@ -69,12 +70,12 @@ The ROOT installation is required for some exercises in this tutorial. |
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The tar files with precompiled ROOT binaries for Ubuntu-24.04 can be downloaded from
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https://root.cern/download/:
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`curl -SLO https://root.cern/download/root_v6.34.08.Linux-ubuntu24.04-x86_64-gcc13.3.tar.gz`
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`curl -SLO https://root.cern/download/root_v6.36.06.Linux-ubuntu24.04-x86_64-gcc13.3.tar.gz`
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We will install both ROOT and Geant4 into /usr/local directory:
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```
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sudo tar zxf root_v6.34.08.Linux-ubuntu24.04-x86_64-gcc13.3.tar.gz -C /usr/local
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sudo tar zxf root_v6.36.06.Linux-ubuntu24.04-x86_64-gcc13.3.tar.gz
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sudo chown -R `id -un`:`id -gn` /usr/local/root
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chmod +x /usr/local/root/bin/thisroot.*
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| ... | ... | @@ -131,13 +132,13 @@ In the Terminal window type the commands: |
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```
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git clone https://gitlab.cern.ch/geant4/geant4.git
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cd geant4/
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git checkout v11.3.2
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This will create a clone of the Geant4 11.3.2 release on your local disk.
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git checkout v11.4.0
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This will create a clone of the Geant4 11.4.0 release on your local disk.
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The ROOT and Geant4 are installed with the current user as owner.
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You need to create a target directory owned by my current user:
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`sudo mkdir -p /usr/local/geant4/11.3.2`
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`sudo mkdir -p /usr/local/geant4/11.4.0`
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`sudo chown -R `id -un`:`id -gn` /usr/local/geant4`
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```
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```
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mkdir geant4-build
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cd geant4-build
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cmake -DCMAKE_INSTALL_PREFIX=/usr/local/geant4/11.3.2 \
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cmake -DCMAKE_INSTALL_PREFIX=/usr/local/geant4/11.4.0 \
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-DCMAKE_BUILD_TYPE=RelWithDebInfo [ -DGEANT4_BUILD_MULTITHREADED=ON ] \
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-DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_GDML=ON -DGEANT4_USE_QT=ON \
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-DGEANT4_INSTALL_DATA=ON -DGEANT4_USE_GDML=ON \
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-DGEANT4_USE_QT=ON -DGEANT4_USE_QT=ON \
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-DGEANT4_USE_OPENGL_X11=ON [-DGEANT4_USE_FREETYPE=ON] ../geant4
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```
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| ... | ... | @@ -161,7 +163,7 @@ Now you can comile binaries and install Geant4: |
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cmake --build . --target install -- -j8
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```
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Geant4 is now installed in the `/usr/local/geant4/11.3.2` directory.
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Geant4 is now installed in the `/usr/local/geant4/11.4.0` directory.
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The installation script `build-geant4-ubuntu.sh` will do all these steps.
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| ... | ... | @@ -179,8 +181,8 @@ if [ -x /usr/local/root/bin/thisroot.sh ]; then |
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fi
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# Geant4
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if [ -x /usr/local/geant4/11.3.2/bin/geant4.sh ]; then
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. /usr/local/geant4/11.3.2/bin/geant4.sh
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if [ -x /usr/local/geant4/11.4.0/bin/geant4.sh ]; then
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. /usr/local/geant4/11.4.0/bin/geant4.sh
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fi
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```
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| ... | ... | @@ -201,7 +203,7 @@ Start the ROOT interactive session: |
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```
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$ root
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------------------------------------------------------------------
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| Welcome to ROOT 6.34.08 https://root.cern |
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| Welcome to ROOT 6.34.08 https://root.cern |
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| (c) 1995-2024, The ROOT Team; conception: R. Brun, F. Rademakers |
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| Built for linuxx8664gcc on Apr 07 2025, 20:24:19 |
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| From tags/v6-34-08@v6-34-08 |
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$ cd ~/tmp
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$ mkdir B1-build
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$ cd B1-build
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$ cmake /usr/local/geant4/11.3.2/share/Geant4/examples/basic/B1
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$ cmake /usr/local/geant4/11.4.0/share/Geant4/examples/basic/B1
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```
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You should see something like the output below. Watch for eventual configuration errors.
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-- Check for working CXX compiler: /usr/bin/c++ - skipped
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-- Detecting CXX compile features
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-- Detecting CXX compile features - done
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-- Found EXPAT: /usr/lib/x86_64-linux-gnu/libexpat.so (found suitable version "2.6.1", minimum required is "2.6.1")
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-- Found EXPAT: /usr/lib/x86_64-linux-gnu/libexpat.so (found suitable version "2.6.1", minimum required is "2.6.1")
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-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
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-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
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-- Found Threads: TRUE
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-- Found XercesC: /usr/lib/x86_64-linux-gnu/libxerces-c.so (found suitable version "3.2.4", minimum required is "3.2.4")
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-- Found Freetype: /usr/lib/x86_64-linux-gnu/libfreetype.so (found suitable version "2.13.2", minimum required is "2.13.2")
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-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so
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-- Found X11: /usr/include
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-- Found Threads: TRUE
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-- Found XercesC: /usr/lib/x86_64-linux-gnu/libxerces-c.so (found suitable version "3.2.4", minimum required is "3.2.4")
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-- Found Freetype: /usr/lib/x86_64-linux-gnu/libfreetype.so (found suitable version "2.13.2", minimum required is "2.13.2")
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-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so
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-- Found X11: /usr/include
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-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so
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-- Looking for XOpenDisplay in /usr/lib/x86_64-linux-gnu/libX11.so;/usr/lib/x86_64-linux-gnu/libXext.so - found
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-- Looking for gethostbyname
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-- Looking for shmat - found
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-- Looking for IceConnectionNumber in ICE
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-- Looking for IceConnectionNumber in ICE - found
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-- Found Geant4: /usr/local/geant4/11.3.2/lib/cmake/Geant4/Geant4Config.cmake (found version "11.3.2")
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-- Configuring done (10.5s)
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-- Found Geant4: /usr/local/geant4/11.4.0/lib/cmake/Geant4/Geant4Config.cmake (found version "11.4.0")
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-- Configuring done (0.9s)
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-- Generating done (0.0s)
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-- Build files have been written to: /home/semenjuk/tmp/B1-build
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```
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Available UI session types: [ Qt, tcsh, csh ]
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**************************************************************
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Geant4 version Name: geant4-11-03-patch-01 [MT] (21-March-2025)
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Geant4 version Name: geant4-11-04 [MT] (5-December-2025)
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<< in Multi-threaded mode >>
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Copyright : Geant4 Collaboration
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References : NIM A 506 (2003), 250-303
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