CMSSW on GitHub

Using singularity/apptainer to develop/run CMSSW

CMS now distribute cmssw-el{5,6,7,8,9} (available under /cvmfs/cms.cern.ch/common) helper scripts to setup cms OS env. The singularity/apptainer unpacked images used by these scripts are available under /cvmfs/unpacked.cern.ch/registry.hub.docker.com/ e.g. cmssw/elN:$(uname -m). List of available images is

  • x86_64
    • cmssw/el9:x86_64
    • cmssw/el8:x86_64
    • cmssw/el7:x86_64
    • cmssw/el6:x86_64
    • cmssw/el5:x86_64
  • aarch64
    • cmssw/el9:aarch64
    • cmssw/el8:aarch64
    • cmssw/el7:aarch64
  • ppc64le
    • cmssw/el8:ppc64le
    • cmssw/el7:ppc64le

Setting up SLC5/SLC6/SLC7/EL8/EL9 CMS environment.

On lxplus, run cmssw-elN command to setup up the env e.g.

  • To use SLC 5 environment:
lxplus> cmssw-el5
Singularity> cat /etc/redhat-release 
Scientific Linux CERN SLC release 5.11 (Boron)
Singularity> exit
lxplus>

OR

lxplus> cmssw-el5 -- cat /etc/redhat-release
Scientific Linux CERN SLC release 5.11 (Boron)
  • To use SLC6/CentOS6 environment:
lxplus> cmssw-el6
Singularity> cat /etc/redhat-release 
CentOS release 6.10 (Final)
Singularity> exit
lxplus>

OR

lxplus> cmssw-el6 -- cat /etc/redhat-release
CentOS release 6.10 (Final)
  • To use SLC7/CentOS7 environment:
lxplus> cmssw-el7
Singularity> cat /etc/redhat-release 
CentOS Linux release 7.8.2003 (Core)
Singularity> exit
lxplus>

OR

lxplus> cmssw-el7 -- cat /etc/redhat-release
CentOS Linux release 7.8.2003 (Core)
  • To use EL8/9 environment: CentOS8/RHEL8/EL8 environment can only be set from SLC7/CentOS7 host (e.g. lxplus, lxplsu7)
lxplus> cmssw-el8 # OR cmssw-el9
Singularity> cat /etc/redhat-release
AlmaLinux release 8.5 (Arctic Sphynx)
Singularity> exit
lxplus>

OR

lxplus> cmssw-el9 -- cat /etc/redhat-release
AlmaLinux release 9.0 Beta (Emerald Puma)

Quick start

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Infrastructure setup

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