Docker image for Geant4?

Getting Started
1

Hello,

I’m looking for a docker image with Geant4 and Root to sidestep having to install it myself. Is there an official or unofficial G4 docker image that is maintained ?

1 Like
2

There is no official docker image with ROOT and Geant4. I recommend you to try using ROOT and Geant4 from CVMFS if you don’t want to install them yourself. What operating system are you running? I can help you find the easiest path to getting both working on your system.

3

Hi, thanks for the response! Unfortunately we don’t have cvfms on our cluster. The OS is “CentOS Linux 7 (Core)”. The aim is to do large simulation on the batch system.

4

Hello @amadio ,

To make life easier I’m now using a cluster that has access to CVMFS and I do:
source /cvmfs/sft.cern.ch/lcg/contrib/gcc/6.3.0/x86_64-slc6/setup.sh
source /cvmfs/geant4.cern.ch/geant4/10.6/x86_64-slc6-gcc63-optdeb-MT/CMake-setup.sh
source /cvmfs/geant4.cern.ch/geant4/10.6/x86_64-slc6-gcc63-optdeb-MT/share/Geant4-10.6.0/geant4make/geant4make.sh
source /cvmfs/geant4.cern.ch/geant4/10.6/x86_64-slc6-gcc63-optdeb-MT/bin/geant4.sh

After this when I do make it compiles on lxplus but on my cluster it gives the error
/usr/bin/ld: cannot find -lXm

collect2: error: ld returned 1 exit status

The OS are the same on lxplus and my cluster (centOS 7) but I notice than when running make on lxplus it prints:
Using global libraries …

which is probably indicative of the issue. Could you advise me on how to get it running on my cluster from cvmfs?

5

Some software installed in CVMFS depends on having HEP_OSlibs (linuxsupport / rpms / HEP_OSlibs) installed on the nodes, or a view from LCG enabled (from /cvmfs/sft.cern.ch/lcg/views/). If you use an LCG release from these views, it should already contain Geant4 after the initial setup.

I also have an installation of Geant4 and ROOT in CVMFS which you can use after running (not sourcing):

$ /cvmfs/sft.cern.ch/lcg/contrib/gentoo/linux/x86_64/startprefix

This is a stack updated nightly, so not it’s not great for running long production jobs, but should still be usable in many cases.