MadGraph5_aMC@NLO

problem with shower job

Asked by Seulgi Kim

Hi,

I'm trying to generate some events with mg5 and pythia8, but there is a problem.
If I don't change run_card.dat, it works. But when I turn off PDF in run_card.dat, my job is stopping here.

Submitting Pythia8 jobs...
Pythia8 shower jobs: 1 Idle, 0 Running, 0 Done [0 second]
Pythia8 shower jobs: 0 Idle, 1 Running, 0 Done [5m00s]

First, I just thought it takes long time, but it was still in the same state a few hours after.
I tried many times, but the results were same.
I don't know why it doesn't work when I turn off PDF.

Cheers,
Seulgi

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Did you try to run pythia8 outside of MG5aMC?
Did you turn off in PY8 all ISR radiation any feature related to the beam?

Cheers,

Olivier

> On 1 Jun 2019, at 15:32, Seulgi Kim <email address hidden> wrote:
>
> New question #681184 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/681184
>
> Hi,
>
> I'm trying to generate some events with mg5 and pythia8, but there is a problem.
> If I don't change run_card.dat, it works. But when I turn off PDF in run_card.dat, my job is stopping here.
>
> Submitting Pythia8 jobs...
> Pythia8 shower jobs: 1 Idle, 0 Running, 0 Done [0 second]
> Pythia8 shower jobs: 0 Idle, 1 Running, 0 Done [5m00s]
>
>
> First, I just thought it takes long time, but it was still in the same state a few hours after.
> I tried many times, but the results were same.
> I don't know why it doesn't work when I turn off PDF.
>
>
> Cheers,
> Seulgi
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Revision history for this message
Seulgi Kim (seulgi) said : 		#2

No, I ran pythia8 inside of MG5aMC.

I changed the run_cared.dat like below.
before:
     1 = lpp1 ! beam 1 type
     1 = lpp2 ! beam 2 type
after:
     0 = lpp1 ! beam 1 type
     0 = lpp2 ! beam 2 type

Cheers,
Seulgi

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said : 		#3

Well I do not know how to run Pythia for such setup. I am also doubtful of the physics you are trying (or I misunderstood what you try to do)

Cheers

Olivier

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________________________________
From: <email address hidden> <email address hidden> on behalf of Seulgi Kim <email address hidden>
Sent: Saturday, June 1, 2019 4:17:17 PM
To: Olivier Mattelaer
Subject: Re: [Question #681184]: problem with shower job

Question #681184 on MadGraph5_aMC@NLO changed:
https://answers.launchpad.net/mg5amcnlo/+question/681184

    Status: Answered => Open

Seulgi Kim is still having a problem:
No, I ran pythia8 inside of MG5aMC.

I changed the run_cared.dat like below.
before:
     1 = lpp1 ! beam 1 type
     1 = lpp2 ! beam 2 type
after:
     0 = lpp1 ! beam 1 type
     0 = lpp2 ! beam 2 type

Cheers,
Seulgi

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