Segmentation fault when running pythia

Asked by Melissa on 2018-10-25

Dear developers,

Whenever I try to shower ttbarW, ttbarZ, tb~ or t~b events, I run into a segementation fault error at the shower stage.
The error looks like this:

Splitting .lhe event file for PY8 parallelization...
Submitting Pythia8 jobs...
Pythia8 shower jobs: 1 Idle, 39 Running, 0 Done [23 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164098 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
WARNING: program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh 19 launch ends with non zero status: 139. Stop all computation
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163865 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 39 Running, 1 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163875 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 38 Running, 2 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163903 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 37 Running, 3 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163910 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 36 Running, 4 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163913 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 35 Running, 5 Done [33 seconds]
Pythia8 shower jobs: 0 Idle, 34 Running, 6 Done [33 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163950 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 33 Running, 7 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163989 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 32 Running, 8 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163946 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 31 Running, 9 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164031 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163960 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 30 Running, 10 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163973 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 29 Running, 11 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164159 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 163979 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 27 Running, 13 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164013 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 26 Running, 14 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164058 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 25 Running, 15 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164082 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 24 Running, 16 Done [34 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164084 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 23 Running, 17 Done [34 seconds]
Pythia8 shower jobs: 0 Idle, 22 Running, 18 Done [34 seconds]
Pythia8 shower jobs: 0 Idle, 21 Running, 19 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164132 Segmentation fault ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164099 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 19 Running, 21 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164125 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 18 Running, 22 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164164 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 17 Running, 23 Done [35 seconds]
Pythia8 shower jobs: 0 Idle, 16 Running, 24 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164204 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 15 Running, 25 Done [35 seconds]
Pythia8 shower jobs: 0 Idle, 14 Running, 26 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164250 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 13 Running, 27 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164266 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 12 Running, 28 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164263 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 11 Running, 29 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164264 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 10 Running, 30 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164273 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 9 Running, 31 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164291 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 8 Running, 32 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164316 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 7 Running, 33 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164323 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164327 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 5 Running, 35 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164329 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 4 Running, 36 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164335 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 3 Running, 37 Done [35 seconds]
/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh: line 2: 164015 Terminated ./MG5aMC_PY8_interface PY8Card.dat &> PY8_log.txt
Pythia8 shower jobs: 0 Idle, 1 Running, 39 Done [35 seconds]
Pythia8 shower jobs: 0 Idle, 0 Running, 40 Done [35 seconds]
Command "generate_events run_01" interrupted with error:
Exception : program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/Events/run_01/PY8_parallelization/run_PY8.sh 19 launch ends with non zero status: 139. Stop all computation
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in '/scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan2/run_01_tag_1_debug.log'.
Please attach this file to your report.
INFO: storing files of previous run
INFO: Done
INFO:
quit

I only get this error with these events. I have tried to use a single machine setup (in the config file), but same thing happens. Only thing that seems to help is to turn of the matching completely and not to generate additional jets in the matrix element.
I have seen that this is a know bug, and the fix was to turn of the multicore or cluster mode and use single machine instead. For me this did not work, I had to turn off the matching.
I am not sure whether I should contact the pythia authors for this, as the issue seems to be on their side. I have included two debug files, one for tb production and one for ttbarZ.

Cheers and thank you,
Melissa

Question information

Language:
English Edit question
Status:
Open
For:
MadGraph5_aMC@NLO Edit question
Assignee:
Stefan Prestel Edit question
Last query:
2018-10-25
Last reply:
Melissa (mcbeekveld) said : #1

For some reason I cannot upload files, so here is the debug file for t+b production:

#************************************************************
#* MadGraph5_aMC@NLO/MadEvent *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 2.6.3.2 2018-06-22 *
#* *
#* The MadGraph5_aMC@NLO Development Team - Find us at *
#* https://server06.fynu.ucl.ac.be/projects/madgraph *
#* *
#************************************************************
#* *
#* Command File for MadEvent *
#* *
#* run as ./bin/madevent.py filename *
#* *
#************************************************************
generate_events run_01
Traceback (most recent call last):
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/extended_cmd.py", line 1501, in onecmd
    return self.onecmd_orig(line, **opt)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/extended_cmd.py", line 1450, in onecmd_orig
    return func(arg, **opt)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/madevent_interface.py", line 2469, in do_generate_events
    self.run_generate_events(switch_mode, args)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/common_run_interface.py", line 6711, in new_fct
    original_fct(obj, *args, **opts)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/madevent_interface.py", line 2573, in run_generate_events
    self.exec_cmd('shower --no_default', postcmd=False, printcmd=False)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/extended_cmd.py", line 1528, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/extended_cmd.py", line 1450, in onecmd_orig
    return func(arg, **opt)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/madevent_interface.py", line 3806, in do_shower
    postcmd=False, printcmd=False)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/extended_cmd.py", line 1528, in exec_cmd
    stop = Cmd.onecmd_orig(current_interface, line, **opt)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/extended_cmd.py", line 1450, in onecmd_orig
    return func(arg, **opt)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/interface/madevent_interface.py", line 4472, in do_pythia8
    self.cluster.wait(parallelization_dir,wait_monitoring)
  File "/scratch/mbeekveld/MG5_aMC_v2_6_3_2/madgraph/various/cluster.py", line 822, in wait
    raise Exception, self.fail_msg
Exception: program /scratch/mbeekveld/MG5_aMC_v2_6_3_2/bin/wplustop_schan/Events/run_01/PY8_parallelization/run_PY8.sh 1 launch ends with non zero status: 139. Stop all computation
                              Run Options
                              -----------
               stdout_level : 20 (user set)

                         MadEvent Options
                         ----------------
     automatic_html_opening : False (user set)
        notification_center : True
          cluster_temp_path : None
             cluster_memory : None (user set)
               cluster_size : 100
              cluster_queue : None (user set)
                    nb_core : 40 (user set)
               cluster_time : 40 (user set)
                   run_mode : 2

                      Configuration Options
                      ---------------------
                text_editor : None
         cluster_local_path : None
      cluster_status_update : (600, 30)
               pythia8_path : /scratch/mbeekveld/MG5_aMC_v2_6_3_2/HEPTools/pythia8 (user set)
                  hwpp_path : None (user set)
            pythia-pgs_path : None (user set)
                    td_path : None (user set)
               delphes_path : /scratch/mbeekveld/MG5_aMC_v2_6_3_2/Delphes (user set)
                thepeg_path : None (user set)
               cluster_type : condor
          madanalysis5_path : None (user set)
           cluster_nb_retry : 1
                 eps_viewer : None
                web_browser : None
               syscalc_path : None (user set)
           madanalysis_path : None (user set)
                     lhapdf : lhapdf-config
              f2py_compiler : None
                 hepmc_path : None (user set)
         cluster_retry_wait : 300
           fortran_compiler : None
                auto_update : 7 (user set)
        exrootanalysis_path : None (user set)
                    timeout : 60
               cpp_compiler : None
#************************************************************
#* MadGraph5_aMC@NLO *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 2.6.3.2 2018-06-22 *
#* *
#* The MadGraph5_aMC@NLO Development Team - Find us at *
#* https://server06.fynu.ucl.ac.be/projects/madgraph *
#* *
#************************************************************
#* *
#* Command File for MadGraph5_aMC@NLO *
#* *
#* run as ./bin/mg5_aMC filename *
#* *
#************************************************************
set default_unset_couplings 99
set group_subprocesses Auto
set ignore_six_quark_processes False
set loop_optimized_output True
set loop_color_flows False
set gauge unitary
set complex_mass_scheme False
set max_npoint_for_channel 0
import model sm
define p = g u c d s u~ c~ d~ s~
define j = g u c d s u~ c~ d~ s~
define l+ = e+ mu+
define l- = e- mu-
define vl = ve vm vt
define vl~ = ve~ vm~ vt~
define eall = e+ e-
define veall = ve ve~
define muall = mu+ mu-
define vmall = vm vm~
define taall = ta+ ta-
define vtall = vt vt~
define w = w+ w-
define tall = t t~
define ball = b b~
define p = g u c d s b u~ c~ d~ s~ b~
define j = g u c d s b u~ c~ d~ s~ b~
define w = w+|w-
generate p p > w+ > t b~ @0
add process p p > w+ > t b~ j@1
add process p p > w+ > t b~ j j @2
output wplustop_schan
######################################################################
## PARAM_CARD AUTOMATICALY GENERATED BY MG5 FOLLOWING UFO MODEL ####
######################################################################
## ##
## Width set on Auto will be computed following the information ##
## present in the decay.py files of the model. ##
## See arXiv:1402.1178 for more details. ##
## ##
######################################################################

###################################
## INFORMATION FOR MASS
###################################
Block mass
    5 4.700000e+00 # MB
    6 1.730000e+02 # MT
   15 1.777000e+00 # MTA
   23 9.118800e+01 # MZ
   25 1.250000e+02 # MH
## Dependent parameters, given by model restrictions.
## Those values should be edited following the
## analytical expression. MG5 ignores those values
## but they are important for interfacing the output of MG5
## to external program such as Pythia.
  1 0.000000 # d : 0.0
  2 0.000000 # u : 0.0
  3 0.000000 # s : 0.0
  4 0.000000 # c : 0.0
  11 0.000000 # e- : 0.0
  12 0.000000 # ve : 0.0
  13 0.000000 # mu- : 0.0
  14 0.000000 # vm : 0.0
  16 0.000000 # vt : 0.0
  21 0.000000 # g : 0.0
  22 0.000000 # a : 0.0
  24 80.419002 # w+ : cmath.sqrt(MZ__exp__2/2. + cmath.sqrt(MZ__exp__4/4. - (aEW*cmath.pi*MZ__exp__2)/(Gf*sqrt__2)))

###################################
## INFORMATION FOR SMINPUTS
###################################
Block sminputs
    1 1.325070e+02 # aEWM1
    2 1.166390e-05 # Gf
    3 1.180000e-01 # aS

###################################
## INFORMATION FOR YUKAWA
###################################
Block yukawa
    5 4.700000e+00 # ymb
    6 1.730000e+02 # ymt
   15 1.777000e+00 # ymtau

###################################
## INFORMATION FOR DECAY
###################################
DECAY 6 1.491500e+00 # WT
DECAY 23 2.441404e+00 # WZ
DECAY 24 2.047600e+00 # WW
DECAY 25 6.382339e-03 # WH
## Dependent parameters, given by model restrictions.
## Those values should be edited following the
## analytical expression. MG5 ignores those values
## but they are important for interfacing the output of MG5
## to external program such as Pythia.
DECAY 1 0.000000 # d : 0.0
DECAY 2 0.000000 # u : 0.0
DECAY 3 0.000000 # s : 0.0
DECAY 4 0.000000 # c : 0.0
DECAY 5 0.000000 # b : 0.0
DECAY 11 0.000000 # e- : 0.0
DECAY 12 0.000000 # ve : 0.0
DECAY 13 0.000000 # mu- : 0.0
DECAY 14 0.000000 # vm : 0.0
DECAY 15 0.000000 # ta- : 0.0
DECAY 16 0.000000 # vt : 0.0
DECAY 21 0.000000 # g : 0.0
DECAY 22 0.000000 # a : 0.0
#*********************************************************************
# MadGraph5_aMC@NLO *
# *
# run_card.dat MadEvent *
# *
# This file is used to set the parameters of the run. *
# *
# Some notation/conventions: *
# *
# Lines starting with a '# ' are info or comments *
# *
# mind the format: value = variable ! comment *
#*********************************************************************
#
#*******************
# Running parameters
#*******************
#
#*********************************************************************
# Tag name for the run (one word) *
#*********************************************************************
  tag_1 = run_tag ! name of the run
#*********************************************************************
# Number of events and rnd seed *
# Warning: Do not generate more than 1M events in a single run *
# If you want to run Pythia, avoid more than 50k events in a run. *
#*********************************************************************
  50000 = nevents ! Number of unweighted events requested
  0 = iseed ! rnd seed (0=assigned automatically=default))
#*********************************************************************
# Collider type and energy *
# lpp: 0=No PDF, 1=proton, -1=antiproton, 2=photon from proton, *
# 3=photon from electron *
#*********************************************************************
     1 = lpp1 ! beam 1 type
     1 = lpp2 ! beam 2 type
     6500.0 = ebeam1 ! beam 1 total energy in GeV
     6500.0 = ebeam2 ! beam 2 total energy in GeV
#*********************************************************************
# Beam polarization from -100 (left-handed) to 100 (right-handed) *
#*********************************************************************
     0.0 = polbeam1 ! beam polarization for beam 1
     0.0 = polbeam2 ! beam polarization for beam 2
#*********************************************************************
# PDF CHOICE: this automatically fixes also alpha_s and its evol. *
#*********************************************************************
     nn23lo1 = pdlabel ! PDF set
     230000 = lhaid ! if pdlabel=lhapdf, this is the lhapdf number
#*********************************************************************
# Renormalization and factorization scales *
#*********************************************************************
 False = fixed_ren_scale ! if .true. use fixed ren scale
 False = fixed_fac_scale ! if .true. use fixed fac scale
 91.188 = scale ! fixed ren scale
 91.188 = dsqrt_q2fact1 ! fixed fact scale for pdf1
 91.188 = dsqrt_q2fact2 ! fixed fact scale for pdf2
 -1 = dynamical_scale_choice ! Choose one of the preselected dynamical choices
 1.0 = scalefact ! scale factor for event-by-event scales
#*********************************************************************
# Type and output format
#*********************************************************************
  False = gridpack !True = setting up the grid pack
  -1.0 = time_of_flight ! threshold (in mm) below which the invariant livetime is not written (-1 means not written)
  3.0 = lhe_version ! Change the way clustering information pass to shower.
  True = clusinfo ! include clustering tag in output
  average = event_norm ! average/sum. Normalization of the weight in the LHEF

#*********************************************************************
# Matching parameter (MLM only)
#*********************************************************************
 1 = ickkw ! 0 no matching, 1 MLM
 1.0 = alpsfact ! scale factor for QCD emission vx
 False = chcluster ! cluster only according to channel diag
 5 = asrwgtflavor ! highest quark flavor for a_s reweight
 False = auto_ptj_mjj ! Automatic setting of ptj and mjj if xqcut >0
                                   ! (turn off for VBF and single top processes)
 20 = xqcut ! minimum kt jet measure between partons
#*********************************************************************
#
#*********************************************************************
# handling of the helicities:
# 0: sum over all helicities
# 1: importance sampling over helicities
#*********************************************************************
   0 = nhel ! using helicities importance sampling or not.
#*********************************************************************
# Generation bias, check the wiki page below for more information: *
# 'cp3.irmp.ucl.ac.be/projects/madgraph/wiki/LOEventGenerationBias' *
#*********************************************************************
 None = bias_module ! Bias type of bias, [None, ptj_bias, -custom_folder-]
 {} = bias_parameters ! Specifies the parameters of the module.
#
#*******************************
# Parton level cuts definition *
#*******************************
#
#
#*********************************************************************
# BW cutoff (M+/-bwcutoff*Gamma) ! Define on/off-shell for "$" and decay
#*********************************************************************
  15.0 = bwcutoff ! (M+/-bwcutoff*Gamma)
#*********************************************************************
# Apply pt/E/eta/dr/mij/kt_durham cuts on decay products or not
# (note that etmiss/ptll/ptheavy/ht/sorted cuts always apply)
#*********************************************************************
   False = cut_decays ! Cut decay products
#*********************************************************************
# Standard Cuts *
#*********************************************************************
# Minimum and maximum pt's (for max, -1 means no cut) *
#*********************************************************************
 20.0 = ptj ! minimum pt for the jets
 20.0 = ptb ! minimum pt for the b
 20.0 = pta ! minimum pt for the photons
 15.0 = ptl ! minimum pt for the charged leptons
 0.0 = misset ! minimum missing Et (sum of neutrino's momenta)
 -1.0 = ptjmax ! maximum pt for the jets
 -1.0 = ptbmax ! maximum pt for the b
 -1.0 = ptamax ! maximum pt for the photons
 -1.0 = ptlmax ! maximum pt for the charged leptons
 -1.0 = missetmax ! maximum missing Et (sum of neutrino's momenta)
 {} = pt_min_pdg ! pt cut for other particles (use pdg code). Applied on particle and anti-particle
 {} = pt_max_pdg ! pt cut for other particles (syntax e.g. {6: 100, 25: 50})
#*********************************************************************
# Minimum and maximum E's (in the center of mass frame) *
#*********************************************************************
  0.0 = ej ! minimum E for the jets
  0.0 = eb ! minimum E for the b
  0.0 = ea ! minimum E for the photons
  0.0 = el ! minimum E for the charged leptons
  -1.0 = ejmax ! maximum E for the jets
 -1.0 = ebmax ! maximum E for the b
 -1.0 = eamax ! maximum E for the photons
 -1.0 = elmax ! maximum E for the charged leptons
 {} = e_min_pdg ! E cut for other particles (use pdg code). Applied on particle and anti-particle
 {} = e_max_pdg ! E cut for other particles (syntax e.g. {6: 100, 25: 50})
#*********************************************************************
# Maximum and minimum absolute rapidity (for max, -1 means no cut) *
#*********************************************************************
  2.8 = etaj ! max rap for the jets
  2.5 = etab ! max rap for the b
 2.37 = etaa ! max rap for the photons
 2.7 = etal ! max rap for the charged leptons
 0.0 = etajmin ! min rap for the jets
 0.0 = etabmin ! min rap for the b
 0.0 = etaamin ! min rap for the photons
 0.0 = etalmin ! main rap for the charged leptons
 {} = eta_min_pdg ! rap cut for other particles (use pdg code). Applied on particle and anti-particle
 {} = eta_max_pdg ! rap cut for other particles (syntax e.g. {6: 2.5, 23: 5})
#*********************************************************************
# Minimum and maximum DeltaR distance *
#*********************************************************************
 0.4 = drjj ! min distance between jets
 0.4 = drbb ! min distance between b's
 0.4 = drll ! min distance between leptons
 0.4 = draa ! min distance between gammas
 0.4 = drbj ! min distance between b and jet
 0.4 = draj ! min distance between gamma and jet
 0.2 = drjl ! min distance between jet and lepton
 0.4 = drab ! min distance between gamma and b
 0.4 = drbl ! min distance between b and lepton
 0.4 = dral ! min distance between gamma and lepton
 -1.0 = drjjmax ! max distance between jets
 -1.0 = drbbmax ! max distance between b's
 -1.0 = drllmax ! max distance between leptons
 -1.0 = draamax ! max distance between gammas
 -1.0 = drbjmax ! max distance between b and jet
 -1.0 = drajmax ! max distance between gamma and jet
 -1.0 = drjlmax ! max distance between jet and lepton
 -1.0 = drabmax ! max distance between gamma and b
 -1.0 = drblmax ! max distance between b and lepton
 -1.0 = dralmax ! maxdistance between gamma and lepton
#*********************************************************************
# Minimum and maximum invariant mass for pairs *
# WARNING: for four lepton final state mmll cut require to have *
# different lepton masses for each flavor! *
#*********************************************************************
 0.0 = mmjj ! min invariant mass of a jet pair
 0.0 = mmbb ! min invariant mass of a b pair
 0.0 = mmaa ! min invariant mass of gamma gamma pair
 0.0 = mmll ! min invariant mass of l+l- (same flavour) lepton pair
 -1.0 = mmjjmax ! max invariant mass of a jet pair
 -1.0 = mmbbmax ! max invariant mass of a b pair
 -1.0 = mmaamax ! max invariant mass of gamma gamma pair
 -1.0 = mmllmax ! max invariant mass of l+l- (same flavour) lepton pair
 {} = mxx_min_pdg ! min invariant mass of a pair of particles X/X~ (e.g. {6:250})
 {'default': False} = mxx_only_part_antipart ! if True the invariant mass is applied only
                       ! to pairs of particle/antiparticle and not to pairs of the same pdg codes.
#*********************************************************************
# Minimum and maximum invariant mass for all letpons *
#*********************************************************************
 0.0 = mmnl ! min invariant mass for all letpons (l+- and vl)
 -1.0 = mmnlmax ! max invariant mass for all letpons (l+- and vl)
#*********************************************************************
# Minimum and maximum pt for 4-momenta sum of leptons *
#*********************************************************************
 0.0 = ptllmin ! Minimum pt for 4-momenta sum of leptons(l and vl)
 -1.0 = ptllmax ! Maximum pt for 4-momenta sum of leptons(l and vl)
#*********************************************************************
# Inclusive cuts *
#*********************************************************************
 0.0 = ptheavy ! minimum pt for at least one heavy final state
 0.0 = xptj ! minimum pt for at least one jet
 0.0 = xptb ! minimum pt for at least one b
 0.0 = xpta ! minimum pt for at least one photon
 0.0 = xptl ! minimum pt for at least one charged lepton
#*********************************************************************
# Control the pt's of the jets sorted by pt *
#*********************************************************************
 0.0 = ptj1min ! minimum pt for the leading jet in pt
 0.0 = ptj2min ! minimum pt for the second jet in pt
 0.0 = ptj3min ! minimum pt for the third jet in pt
 0.0 = ptj4min ! minimum pt for the fourth jet in pt
 -1.0 = ptj1max ! maximum pt for the leading jet in pt
 -1.0 = ptj2max ! maximum pt for the second jet in pt
 -1.0 = ptj3max ! maximum pt for the third jet in pt
 -1.0 = ptj4max ! maximum pt for the fourth jet in pt
 0 = cutuse ! reject event if fails any (0) / all (1) jet pt cuts
#*********************************************************************
# Control the pt's of leptons sorted by pt *
#*********************************************************************
 0.0 = ptl1min ! minimum pt for the leading lepton in pt
 0.0 = ptl2min ! minimum pt for the second lepton in pt
 0.0 = ptl3min ! minimum pt for the third lepton in pt
 0.0 = ptl4min ! minimum pt for the fourth lepton in pt
 -1.0 = ptl1max ! maximum pt for the leading lepton in pt
 -1.0 = ptl2max ! maximum pt for the second lepton in pt
 -1.0 = ptl3max ! maximum pt for the third lepton in pt
 -1.0 = ptl4max ! maximum pt for the fourth lepton in pt
#*********************************************************************
# Control the Ht(k)=Sum of k leading jets *
#*********************************************************************
 0.0 = htjmin ! minimum jet HT=Sum(jet pt)
 -1.0 = htjmax ! maximum jet HT=Sum(jet pt)
 0.0 = ihtmin !inclusive Ht for all partons (including b)
 -1.0 = ihtmax !inclusive Ht for all partons (including b)
 0.0 = ht2min ! minimum Ht for the two leading jets
 0.0 = ht3min ! minimum Ht for the three leading jets
 0.0 = ht4min ! minimum Ht for the four leading jets
 -1.0 = ht2max ! maximum Ht for the two leading jets
 -1.0 = ht3max ! maximum Ht for the three leading jets
 -1.0 = ht4max ! maximum Ht for the four leading jets
#***********************************************************************
# Photon-isolation cuts, according to hep-ph/9801442 *
# When ptgmin=0, all the other parameters are ignored *
# When ptgmin>0, pta and draj are not going to be used *
#***********************************************************************
 0.0 = ptgmin ! Min photon transverse momentum
 0.4 = R0gamma ! Radius of isolation code
 1.0 = xn ! n parameter of eq.(3.4) in hep-ph/9801442
 1.0 = epsgamma ! epsilon_gamma parameter of eq.(3.4) in hep-ph/9801442
 True = isoEM ! isolate photons from EM energy (photons and leptons)
#*********************************************************************
# WBF cuts *
#*********************************************************************
 0.0 = xetamin ! minimum rapidity for two jets in the WBF case
 0.0 = deltaeta ! minimum rapidity for two jets in the WBF case
#***********************************************************************
# Turn on either the ktdurham or ptlund cut to activate *
# CKKW(L) merging with Pythia8 [arXiv:1410.3012, arXiv:1109.4829] *
#***********************************************************************
 -1.0 = ktdurham
 0.4 = dparameter
 -1.0 = ptlund
 1, 2, 3, 4, 5, 6, 21 = pdgs_for_merging_cut ! PDGs for two cuts above
#*********************************************************************
# maximal pdg code for quark to be considered as a light jet *
# (otherwise b cuts are applied) *
#*********************************************************************
 5 = maxjetflavor ! Maximum jet pdg code
#*********************************************************************
#
#*********************************************************************
# Store info for systematics studies *
# WARNING: Do not use for interference type of computation *
#*********************************************************************
   False = use_syst ! Enable systematics studies
#
#**************************************
# Parameter of the systematics study
# will be used by SysCalc (if installed)
#**************************************
#
0.5 1 2 = sys_scalefact # factorization/renormalization scale factor
None = sys_alpsfact # \alpha_s emission scale factors
auto = sys_matchscale # variation of merging scale
# PDF sets and number of members (0 or none for all members).
#NNPDF23_lo_as_0130_qed = sys_pdf # list of pdf sets
False = sys_pdf
#

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