MadGraph5_aMC@NLO

using pythia8 on lxplus

Asked by Kristin Lohwasser

Hi all,

I wanted to use a pre-compile pythia version on lxplus (in the hope that it should work)

I set as pythia path:
/afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt61c/pythia8/180/i686-slc5-gcc43-opt/
(other version did not have the required hepmc converter library)

however I see a fatal error and was wondering, whether this can be fixed or whether I would need to install pythia myself?

thanks & Best
Kristin

INFO: Events generated
reweight -from_cards
decay_events -from_cards
INFO: Preparing MCatNLO run
INFO: Compiling MCatNLO for PYTHIA8...
Pythia8.cc:7:46: fatal error: ../examples/CombineMatchingInput.h: No such file or directory
compilation terminated.
make: *** [Pythia8] Error 1
6-slc5-gcc43-opt/include \
          -I/afs/.cern.ch/sw/lcg/external/HepMC/2.06.05/i686-slc5-gcc43-opt/include -I/afs/cern.ch/work/k/kristin/WWaMCatNLO/M2test/MG5_aMC_v2_4_0/WW_SMWW_pp100/MCatNLO/include \
          -L../lib Pythia8.cc -o Pythia8.exe \
          -L/afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt61c/pythia8/180/i686-slc5-gcc43-opt/lib/archive -lpythia8 -llhapdfdummy \
          -lpythia8tohepmc -L/afs/.cern.ch/sw/lcg/external/HepMC/2.06.05/i686-slc5-gcc43-opt/lib -lHepMC
Pythia8 compilation did not succeed, exiting

Question information

Language:
English Edit question
Status:
Answered
For:
MadGraph5_aMC@NLO Edit question
Assignee:
Paolo Torrielli Edit question
Last query:
Last reply:
Revision history for this message
Paolo Torrielli (paolo-torrielli) said : 		#1

Hi Kristin,

if I understand correctly from your paths, you're using Pythia8180.

This is incompatible with MadGraph5_aMC@NLO for NLO purposes,
you're encouraged to use Pythia8210 or more recent.

Cheers,
Paolo

Revision history for this message
Kristin Lohwasser (kristin-lohwasser) said : 		#2

Hi,

indeed I tried changing to 185 or so, but that does not help. -See below.

I also tried both, setting the relative as well as the absolute path (in input/mg5_configuration.txt)
pythia8_path=./../../../../../../sw/lcg/external/MCGenerators_lcgcmt64d/pythia8/185/i686-slc5-gcc43-opt/

pythia8_path = /afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt64d/pythia8/185/i686-slc5-gcc43-opt/

Thanks & Best
Kristin

make: *** [Pythia8] Error 1
-slc5-gcc43-opt/include \
          -I/afs/.cern.ch/sw/lcg/external/HepMC/2.06.05/i686-slc5-gcc43-opt/include -I/afs/cern.ch/work/k/kristin/WWaMCatNLO/M2test/MG5_aMC_v2_4_0/WW_SMWW_pp100/MCatNLO/include \
          -L../lib Pythia8.cc -o Pythia8.exe \
          -L/afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt64/pythia8/185/i686-slc5-gcc43-opt/lib/archive -lpythia8 -llhapdfdummy \
          -lpythia8tohepmc -L/afs/.cern.ch/sw/lcg/external/HepMC/2.06.05/i686-slc5-gcc43-opt/lib -lHepMC
Pythia8 compilation did not succeed, exiting

Revision history for this message
Paolo Torrielli (paolo-torrielli) said : 		#3

Dear Kristin,
the code may need to link some files from the Pythia8 installation, and you
may not have the permission to do that if the installation is not your own
local one. Could you try and see if it works by installing Pythia8 locally?
Please, recall to specify the HepMC paths while doing that.
Cheers.
Paolo

On 20 Jun 2016, at 13:26, Kristin Lohwasser <email address hidden> wrote:

> Question #295403 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/295403
>
> Kristin Lohwasser posted a new comment:
> Hi,
>
> indeed I tried changing to 185 or so, but that does not help. -See
> below.
>
> I also tried both, setting the relative as well as the absolute path (in input/mg5_configuration.txt)
> pythia8_path=./../../../../../../sw/lcg/external/MCGenerators_lcgcmt64d/pythia8/185/i686-slc5-gcc43-opt/
>
> pythia8_path =
> /afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt64d/pythia8/185/i686-slc5-gcc43-opt/
>
>
> Thanks & Best
> Kristin
>
> make: *** [Pythia8] Error 1
> -slc5-gcc43-opt/include \
> -I/afs/.cern.ch/sw/lcg/external/HepMC/2.06.05/i686-slc5-gcc43-opt/include -I/afs/cern.ch/work/k/kristin/WWaMCatNLO/M2test/MG5_aMC_v2_4_0/WW_SMWW_pp100/MCatNLO/include \
> -L../lib Pythia8.cc -o Pythia8.exe \
> -L/afs/cern.ch/sw/lcg/external/MCGenerators_lcgcmt64/pythia8/185/i686-slc5-gcc43-opt/lib/archive -lpythia8 -llhapdfdummy \
> -lpythia8tohepmc -L/afs/.cern.ch/sw/lcg/external/HepMC/2.06.05/i686-slc5-gcc43-opt/lib -lHepMC
> Pythia8 compilation did not succeed, exiting
>
> --
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> the question.

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