Error message while converting root file from hepmc files

Asked by shibasipu on 2017-05-23

Hi Benjamin,
                          I was trying to convert hepmc files to root file. I am getting the following message.

    with the Delphes card: ../../Inputdelphes_cms.tcl
    * Running over files ...
    * 1/4 /home/shibananda/RESEARCH/EVENT_GENERATORS/MG5_aMC_v2_5_2/IHDMplusVLL_2lmet_2Lakh_BP1/Events/run_01_0/tag_1_pythia8_events.hepmc.gz
        => file size: 47 octets
ERROR: No header has been found. The file is skipped.
    * 2/4 /home/shibananda/RESEARCH/EVENT_GENERATORS/MG5_aMC_v2_5_2/IHDMplusVLL_2lmet_2Lakh_BP1/Events/run_01_2/tag_1_pythia8_events.hepmc.gz
        => file size: 47 octets
ERROR: No header has been found. The file is skipped.
    * 3/4 /home/shibananda/RESEARCH/EVENT_GENERATORS/MG5_aMC_v2_5_2/IHDMplusVLL_2lmet_2Lakh_BP1/Events/run_01_3/tag_1_pythia8_events.hepmc.gz
        => file size: 47 octets
ERROR: No header has been found. The file is skipped.
    * 4/4 /home/shibananda/RESEARCH/EVENT_GENERATORS/MG5_aMC_v2_5_2/IHDMplusVLL_2lmet_2Lakh_BP1/Events/run_01_1/tag_1_pythia8_events.hepmc.gz
        => file size: 47 octets
ERROR: No header has been found. The file is skipped.
    * Finalizing all components ...
    * Total number of processed events: 0.
    * Goodbye.
MA5: *******************************************************

===========================================

Could you please tell what could be the problem ?

Note : I am using ma5 version 1.6.

Regards,
Shiba

Question information

Language:
English Edit question
Status:
Answered
For:
MadAnalysis 5 Edit question
Assignee:
No assignee Edit question
Last query:
2017-05-23
Last reply:
2017-05-23
Benjamin Fuks (fuks) said : #1

Hi Shiba,

It seems that your hepmc files are empty. Can you please check them in a text editor?

Cheers,

Benjamin

shibasipu (shibasipu) said : #2

Hi Benjamin,
                         thanks. Yes, indeed hepmc files are empty. Then shall I generate those once more ?

Regards,
Shiba

Benjamin Fuks (fuks) said : #3

Hi Shiba,

They have not been generated for some reason and you should check what happened with the shower code.

Cheers,

Benj

> On 23 May 2017, at 10:19 , shibasipu <email address hidden> wrote:
>
> Question #633670 on MadAnalysis 5 changed:
> https://answers.launchpad.net/madanalysis5/+question/633670
>
> Status: Answered => Open
>
> shibasipu is still having a problem:
> Hi Benjamin,
> thanks. Yes, indeed hepmc files are empty. Then shall I generate those once more ?
>
>
>
>
>
> Regards,
> Shiba
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

shibasipu (shibasipu) said : #4

thanks for your quick response. which file should I check for this ?

Just to let you know in the screen following messages are coming while PY8 running.

INFO: Running Pythia8 [arXiv:1410.3012]
Splitting .lhe event file for PY8 parallelization...
Submitting Pythia8 jobs...
Pythia8 shower jobs: 1 Idle, 3 Running, 0 Done [1m07s]
Pythia8 shower jobs: 0 Idle, 3 Running, 1 Done [1m13s]
Pythia8 shower jobs: 0 Idle, 2 Running, 2 Done [1m13s]
Pythia8 shower jobs: 0 Idle, 1 Running, 3 Done [1m13s]
Pythia8 shower jobs: 0 Idle, 0 Running, 4 Done [1m13s]
Merging results from the split PY8 runs...
sed: can't read ;$d: No such file or directory
sed: can't read ;$d: No such file or directory
sed: can't read ;$d: No such file or directory
sed: can't read ;$d: No such file or directory
INFO: Pythia8 shower finished after 1m14s.
  === Results Summary for run: run_01_3 tag: tag_1 ===

     Cross-section : 0.07918 +- 0.0001396 pb
     Nb of events : 50000

INFO: storing files of previous run
INFO: Storing Pythia8 files of previous run
INFO: Done

Benjamin Fuks (fuks) said : #5

This seems to be a problem with the madgraph-pythia interface. You should then contact the madgraph and pythia authors :)

Cheers,

Benj

> On 23 May 2017, at 10:34 , shibasipu <email address hidden> wrote:
>
> Question #633670 on MadAnalysis 5 changed:
> https://answers.launchpad.net/madanalysis5/+question/633670
>
> Status: Answered => Open
>
> shibasipu is still having a problem:
> thanks for your quick response. which file should I check for this ?
>
> Just to let you know in the screen following messages are coming while
> PY8 running.
>
>
> INFO: Running Pythia8 [arXiv:1410.3012]
> Splitting .lhe event file for PY8 parallelization...
> Submitting Pythia8 jobs...
> Pythia8 shower jobs: 1 Idle, 3 Running, 0 Done [1m07s]
> Pythia8 shower jobs: 0 Idle, 3 Running, 1 Done [1m13s]
> Pythia8 shower jobs: 0 Idle, 2 Running, 2 Done [1m13s]
> Pythia8 shower jobs: 0 Idle, 1 Running, 3 Done [1m13s]
> Pythia8 shower jobs: 0 Idle, 0 Running, 4 Done [1m13s]
> Merging results from the split PY8 runs...
> sed: can't read ;$d: No such file or directory
> sed: can't read ;$d: No such file or directory
> sed: can't read ;$d: No such file or directory
> sed: can't read ;$d: No such file or directory
> INFO: Pythia8 shower finished after 1m14s.
> === Results Summary for run: run_01_3 tag: tag_1 ===
>
> Cross-section : 0.07918 +- 0.0001396 pb
> Nb of events : 50000
>
> INFO: storing files of previous run
> INFO: Storing Pythia8 files of previous run
> INFO: Done
>
> --
> You received this question notification because you are an answer
> contact for MadAnalysis 5.

Can you help with this problem?

Provide an answer of your own, or ask shibasipu for more information if necessary.

To post a message you must log in.