Error in Delphes

Asked by Sebastian Urrutia-Quiroga

Hello!
I have the following issue with MG-Delphes interface. When I run MG, it generates events then passes along to Pythia and PGS, but on the step that passes off to Delphes, I get the error message:

ERROR: Fail to create LHCO events from DELPHES

What I'm doing wrong?

Best regards,
Sebastian

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Sebastian Urrutia-Quiroga
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Olivier Mattelaer (olivier-mattelaer) said :
#1

Hi,

It means that Delphi’s crash for some reason.
You should have a file Delphes.log with the associate reason.
Not sure that I can help you with that problem, likely that I will ask you to ask directly to Delphes author.

Cheers,

Olivier

> On Dec 22, 2015, at 02:13, sgurruti <email address hidden> wrote:
>
> New question #279887 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/279887
>
> Hello!
> I have the following issue with MG-Delphes interface. When I run MG, it generates events then passes along to Pythia and PGS, but on the step that passes off to Delphes, I get the error message:
>
> ERROR: Fail to create LHCO events from DELPHES
>
> What I'm doing wrong?
>
> Best regards,
> Sebastian
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Revision history for this message
Sebastian Urrutia-Quiroga (sgurruti) said :
#2

Thank you Olivier!

Revision history for this message
shenty1991 (shenty1991) said :
#3

Hello,

I encountered the same issue, and here is the log file:

dyld: Library not loaded: @rpath/libCore.so
  Referenced from: /Users/shenty1991/Dropbox/MG5_aMC_v2_2_3/Delphes/DelphesSTDHEP
  Reason: image not found
../bin/internal/run_delphes3: line 29: 36951 Abort trap: 6 $delphesdir/DelphesSTDHEP ../Cards/delphes_card.dat delphes.root pythia_events.hep
dyld: Library not loaded: @rpath/libCore.so
  Referenced from: /Users/shenty1991/Dropbox/MG5_aMC_v2_2_3/Delphes/root2lhco
  Reason: image not found
../bin/internal/run_delphes3: line 30: 36952 Abort trap: 6 $delphesdir/root2lhco delphes.root delphes_events.lhco

Thank you!

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said :
#4

This is a mac specific issue related to your root installation:
I would advise to look at the following link:
https://stackoverflow.com/questions/20455492/dyld-library-not-loaded-reason-image-not-found
for guidance.

Cheers,

Olivier

> On 5 Dec 2018, at 22:57, shenty1991 <email address hidden> wrote:
>
> Question #279887 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/279887
>
> shenty1991 posted a new comment:
> Hello,
>
> I encountered the same issue, and here is the log file:
>
>
> dyld: Library not loaded: @rpath/libCore.so
> Referenced from: /Users/shenty1991/Dropbox/MG5_aMC_v2_2_3/Delphes/DelphesSTDHEP
> Reason: image not found
> ../bin/internal/run_delphes3: line 29: 36951 Abort trap: 6 $delphesdir/DelphesSTDHEP ../Cards/delphes_card.dat delphes.root pythia_events.hep
> dyld: Library not loaded: @rpath/libCore.so
> Referenced from: /Users/shenty1991/Dropbox/MG5_aMC_v2_2_3/Delphes/root2lhco
> Reason: image not found
> ../bin/internal/run_delphes3: line 30: 36952 Abort trap: 6 $delphesdir/root2lhco delphes.root delphes_events.lhco
>
>
> Thank you!
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Revision history for this message
shenty1991 (shenty1991) said :
#5

It seems that new versions of root won't support the installation method mentioned in that link, do you have any further suggestions?

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said :
#6

Hi,

No I do not have that much experience on root/mac.
You should maybe ask this to Delphes and/or ROOT author.

Cheers,

Olivier

> On 9 Dec 2018, at 14:52, shenty1991 <email address hidden> wrote:
>
> Question #279887 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/279887
>
> shenty1991 posted a new comment:
> It seems that new versions of root won't support the installation method
> mentioned in that link, do you have any further suggestions?
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.