Creating Pythia LHE Root File creats issues

Asked by SUBHASISH BEHERA on 2018-04-07

Hi MadGraph team,

I am using :
MG5_aMC_v2_6_1

I am trying to generate :
import model loop_sm
generate p p > t t~ h [all=QCD]

Then while running I got the following problem :

INFO: Events generated
reweight -from_cards
decay_events -from_cards
INFO: Preparing MCatNLO run
INFO: Using LHAPDF v6.2.0 interface for PDFs
INFO: Compiling MCatNLO for HERWIG6...
INFO: ... done
INFO: Showering events...
INFO: (Running in /home/subhasish153.local/RESEARCH/EVENT_GENERATORS/MADGRAPH5/MG5_aMC_v2_6_1/pp2tth_all_qcd_4flav/MCatNLO/RUN_HERWIG6_2)
INFO: Idle: 1, Running: 0, Completed: 0 [ current time: 20h55 ]
INFO: Idle: 0, Running: 1, Completed: 0 [ 5m 0s ]
INFO: Idle: 0, Running: 0, Completed: 1 [ 6m 2s ]
INFO: Idle: 0, Running: 0, Completed: 0 [ current time: 21h01 ]
INFO: plot for run run_02
INFO: Creating shower LHE File (for plot)
INFO: Warning! Never use this lhe file for detector studies!
INFO: Creating Pythia LHE Root File
Warning in <TFile::Init>: no StreamerInfo found in /home/subhasish153.local/RESEARCH/EVENT_GENERATORS/MADGRAPH5/MG5_aMC_v2_6_1/ExRootAnalysis/ExRootAnalysisDict_rdict.pcm therefore preventing schema evolution when reading this file.
Warning in <TTree::Bronch>: Using split mode on a class: TRootWeight with a custom Streamer
** Reading pythia_events.lhe
** [----------------------------------------------------------------] (0.00%)
 *** Break *** segmentation violation

Thanks,
Subhasish

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Solved by:
Olivier Mattelaer
Solved:
2018-04-24
Last query:
2018-04-24
Last reply:
2018-04-07

hi,

I would suggest to remove the MadAnalysis(4) package since this is the one responsible for such crash.
That package is not maintain anymore so we will not fix this issue.

Cheers,

Olivier

> On 7 Apr 2018, at 13:02, SUBHASISH BEHERA <email address hidden> wrote:
>
> New question #667643 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/667643
>
> Hi MadGraph team,
>
> I am using :
> MG5_aMC_v2_6_1
>
> I am trying to generate :
> import model loop_sm
> generate p p > t t~ h [all=QCD]
>
>
> Then while running I got the following problem :
>
> INFO: Events generated
> reweight -from_cards
> decay_events -from_cards
> INFO: Preparing MCatNLO run
> INFO: Using LHAPDF v6.2.0 interface for PDFs
> INFO: Compiling MCatNLO for HERWIG6...
> INFO: ... done
> INFO: Showering events...
> INFO: (Running in /home/subhasish153.local/RESEARCH/EVENT_GENERATORS/MADGRAPH5/MG5_aMC_v2_6_1/pp2tth_all_qcd_4flav/MCatNLO/RUN_HERWIG6_2)
> INFO: Idle: 1, Running: 0, Completed: 0 [ current time: 20h55 ]
> INFO: Idle: 0, Running: 1, Completed: 0 [ 5m 0s ]
> INFO: Idle: 0, Running: 0, Completed: 1 [ 6m 2s ]
> INFO: Idle: 0, Running: 0, Completed: 0 [ current time: 21h01 ]
> INFO: plot for run run_02
> INFO: Creating shower LHE File (for plot)
> INFO: Warning! Never use this lhe file for detector studies!
> INFO: Creating Pythia LHE Root File
> Warning in <TFile::Init>: no StreamerInfo found in /home/subhasish153.local/RESEARCH/EVENT_GENERATORS/MADGRAPH5/MG5_aMC_v2_6_1/ExRootAnalysis/ExRootAnalysisDict_rdict.pcm therefore preventing schema evolution when reading this file.
> Warning in <TTree::Bronch>: Using split mode on a class: TRootWeight with a custom Streamer
> ** Reading pythia_events.lhe
> ** [----------------------------------------------------------------] (0.00%)
> *** Break *** segmentation violation
>
>
> Thanks,
> Subhasish
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Thanks Olivier Mattelaer, that solved my question.