Problem in generation of the QCD sample at NLO

[Pravesh]

i am trying to generate the following process:

************************************************************
#* MadGraph5_aMC@NLO *
#* *
#* * * *
#* * * * * *
#* * * * * 5 * * * * *
#* * * * * *
#* * * *
#* *
#* *
#* VERSION 2.9.13 2022-12-15 *
#* *
#* 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 group_subprocesses Auto
set ignore_six_quark_processes False
set low_mem_multicore_nlo_generation False
set complex_mass_scheme False
set gauge unitary
set loop_optimized_output True
set loop_color_flows False
set max_npoint_for_channel 0
set default_unset_couplings 99
set max_t_for_channel 99
set zerowidth_tchannel True
import model loop_sm-ckm_no_b_mass
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 p = 21 2 4 1 3 -2 -4 -1 -3 5 -5 # pass to 5 flavors
define j = p
define p = p b b~
define j = j b b~
define lep+ = e+ mu+ ta+
define lep- = e- mu- ta-
generate p p > vl vl~ a [QCD] @1
add process p p > vl vl~ a j [QCD] @2
add process p p > vl vl~ a j j [QCD] @3
output ZA2JToZA2Nu2J_QCD_NLO -nojpeg

and getting the error:

INFO: Compiling the code
Command "launch -n pilotrun" interrupted with error:
TypeError : 'int' object is not iterable
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in '/eos/home-p/pravesh/signal_gen/genproductions/bin/MadGraph5_aMCatNLO/ZA2JToZA2Nu2J_QCD_NLO/ZA2JToZA2Nu2J_QCD_NLO_gridpack/work/processtmp/pilotrun_tag_1_debug.log'.
Please attach this file to your report.
quit
INFO:
finished pilot run

I have also attached the run_card and log file for the detailed description

[Pravesh (praveshsharma1729)]

run_card

[Olivier Mattelaer (olivier-mattelaer)]

What is the content of
/eos/home-p/pravesh/signal_gen/genproductions/bin/MadGraph5_aMCatNLO/ZA2JToZA2Nu2J_QCD_NLO/ZA2JToZA2Nu2J_QCD_NLO_gridpack/work/processtmp/pilotrun_tag_1_debug.log

Cheers,

Olivier

[Pravesh (praveshsharma1729)]

Although it say that error detail is in file /eos/home-p/pravesh/signal_gen/genproductions/bin/MadGraph5_aMCatNLO/ZA2JToZA2Nu2J_QCD_NLO/ZA2JToZA2Nu2J_QCD_NLO_gridpack/work/processtmp/pilotrun_tag_1_debug.log

but no such file /processtmp/pilotrun_tag_1_debug.log is created .

[Olivier Mattelaer (olivier-mattelaer)]

Please configure cmssw to avoid to remove such file and then report it here.
In case ask help from within CMS

Cheers,

Olivier

> On 6 Jul 2025, at 13:39, Pravesh <email address hidden> wrote:
>
> Although it say that error detail is in file
> /eos/home-p/pravesh/signal_gen/genproductions/bin/MadGraph5_aMCatNLO/ZA2JToZA2Nu2J_QCD_NLO/ZA2JToZA2Nu2J_QCD_NLO_gridpack/work/processtmp/pilotrun_tag_1_debug.log
>
> but no such file /processtmp/pilotrun_tag_1_debug.log is created .
>
> --
> You received this bug notification because you are subscribed to
> MadGraph5_aMC@NLO.
> https://bugs.launchpad.net/bugs/2116022
>
> Title:
> Problem in generation of the QCD sample at NLO
>
> Status in MadGraph5_aMC@NLO:
> New
>
> Bug description:
> i am trying to generate the following process:
>
> ************************************************************
> #* MadGraph5_aMC@NLO *
> #* *
> #* * * *
> #* * * * * *
> #* * * * * 5 * * * * *
> #* * * * * *
> #* * * *
> #* *
> #* *
> #* VERSION 2.9.13 2022-12-15 *
> #* *
> #* 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 group_subprocesses Auto
> set ignore_six_quark_processes False
> set low_mem_multicore_nlo_generation False
> set complex_mass_scheme False
> set gauge unitary
> set loop_optimized_output True
> set loop_color_flows False
> set max_npoint_for_channel 0
> set default_unset_couplings 99
> set max_t_for_channel 99
> set zerowidth_tchannel True
> import model loop_sm-ckm_no_b_mass
> 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 p = 21 2 4 1 3 -2 -4 -1 -3 5 -5 # pass to 5 flavors
> define j = p
> define p = p b b~
> define j = j b b~
> define lep+ = e+ mu+ ta+
> define lep- = e- mu- ta-
> generate p p > vl vl~ a [QCD] @1
> add process p p > vl vl~ a j [QCD] @2
> add process p p > vl vl~ a j j [QCD] @3
> output ZA2JToZA2Nu2J_QCD_NLO -nojpeg
>
>
>
> and getting the error:
>
>
> INFO: Compiling the ...

[Sihyun Jeon (shjeon)]

You mixed up LO and NLO run cards. Please ask help from CMS for gridpack issues first and then come to launchpad unless it's confirmed by CMS GEN group that it is a problem from MadGraph itself