ERROR:HistFactory: Error: Encountered Element in NormFactor with unknown name: Const

Roofit and RooStats
1

Dear folks,

I am trying to run histfactory on a xml file I created using the following command:

hist2workspace HZdZd4l_2019_driver.xml
but I’m getting these errors:

[#2] INFO:HistFactory -- hist2workspace is less verbose now. Use -v and -vv for more details.


 INFO: Mode attribute is deprecated and no longer supported, will ignore
[#2] ERROR:HistFactory -- Error: Encountered Element in NormFactor with unknown name: Const
terminate called after throwing an instance of 'RooStats::HistFactory::hf_exc'
  what():  HistFactory - Exception 
Aborted (core dumped)

I am running on lxplus with the following setup:

export PATH=/cvmfs/sft.cern.ch/lcg/external/texlive/2016/bin/x86_64-linux:$PATH
export ALRB_rootVersion=6.30.02-x86_64-centos7-gcc11-opt
lsetup root

I attached the inputs here:
40.0_mH106.0GeV.zip (3.5 KB)
Do you know what could be the issue?

Thanks in advance.

Best,

Diallo.

2

Hi Diallo,

I add @jonas in the loop, who can perhaps help. In the meantime, can you confirm you see the same error with ROOT 6.30.04?

Cheers,
D

3

Hi Danilo,

Thanks for you reply.
Actually in lxplus, root 6.30.04 is not available. The latest is root 30.30.02.

Best,

Diallo.

4

Hello Diallo,

Thanks for checking. I double checked.
Lxplus, the main CERN login service, provides a native installation of ROOT 6.30.04, out of the box. Moreover, ROOT 6.30.04 is available on CVMFS, too: /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.30.04/

Cheers,
Danilo

5

Hi Danilo,

Is there a way to set root in lxplus which is in /cvmfs/sft.cern.ch/lcg/app/releases/ROOT/6.30.04/ ?
The only way I know is the following:
lsetup “root 6.30.02-x86_64-centos7-gcc11-opt”
or
export ALRB_rootVersion=6.30.02-x86_64-centos7-gcc11-opt
lsetup root

Which won’t work for root 6.30.04.

Best,

Diallo.

6

Hi,

By default root 6.30.04 is installed on lxplus, as a distro package. Without sourcing anything.

If you still want to source something from cvmfs, the instructions can be found here.

I hope this helps.

Cheers,
D

7

Hi Danilo,

If I connect on lxplus with: ssh -Y diboye@lxplus7.cern.ch, then I do setupATLAS, then I do root, I see root 6.24.08, instead of 6.30.04.
Am I missing something?

Best,

Diallo.

8

Hi Danilo,

I got root 6.30.04 locally, and I see the same issue.
So the problem seems to also present in root 6.30.04

Best,

Diallo.

9

Ok, let’s wrap up this thread and let’s go back to the original question with @jonas .
The ATLAS script is changing, as expected, the environment.

Cheers,
D

10

Let’s do that. Just to confirm on lxplus the default root is 6.30.04, but you need to log in with lxplus8.cern.ch instead of lxplus7.cern.ch. But let’s wait for @jonas

11

Hi @jonas and all, did you get a chance to look into this? For now, a workaround I am using is to switch to an older root version, and it works, but I guess it’s better to make it out for the current default root version in lxplus.
Thanks.

Best,

Diallo.

12

Hi @diboye,

thanks for reporting!

The Const attribute for the NormFactor was deprecated and ignored since a very long time. Therefore, I decided to explicitly remove this from the Config format, so that nobody accidentally still uses it and is then surprised it does nothing.

See:

So you should update your scripts that produce the XML in such a way that this Const tag is gone. You can safely do that, because it’s completely backwards compatible: the tag was ignored anyway.

Cheers,
Jonas

13

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