ROOT-7 on CVFMS

smd · October 22, 2020, 2:31pm

I am wondering there is a version of ROOT on CVFMS which has ROOT7 functionality enables?

bellenot · October 22, 2020, 2:33pm

I think ROOT7 is built by default, why not simply trying?

smd · October 22, 2020, 2:40pm

Hi,

I dont think its built by default and my local install wont compile against it. Trying this version CVFMS does not have ROOT7:

 /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.22.00

bellenot · October 22, 2020, 2:46pm

Maybe @axel can comment on that, I was almost sure that ROOT was built with ROOT7 enabled

system · November 5, 2020, 2:46pm

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Axel · November 11, 2020, 3:01pm

/cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.22.00 contains builds with the distros’ default compilers. And CentOS’s is too old to build ROOT7.

But if you source /cvmfs/sft.cern.ch/lcg/releases/LCG_98python3/ROOT/v6.22.00/x86_64-centos7-gcc10-opt/ROOT-env.sh you get a GCC10 included, and that ROOT build has ROOT7.

smd · November 11, 2020, 7:41pm

Hi,

Thank you for this advice. In the end we ended up making a new build and putting it on CVFMS ourselves.

Axel · November 25, 2020, 5:00pm

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