Error in new version

[Iñaki Lara Pérez]

Hello,

I have tried to generate gluino + jets events using the MSSM_SLHA2 model doing the following:

generate p p > go go QED==0
add process p p > go go j QED==0
add process p p > go go j j QED==0

but when compiling the subprocesses, Madgraph crashes saying:

UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 145653: ordinal not in range(128)

Is something wrung with my installation? The corresponding bug report is attached to the question.

Note that none of this have happened using the version 2.8.1.

Cheers,
Iñaki Lara

[Olivier Mattelaer (olivier-mattelaer)]

Hi,

This I do nor reproduce it on my machine. This is a python3 error when reading the file because it meets a non ascii character.

can you run the following command:

cat gluino/SubProcesses/P*/Hel/selection

to see what's going on.

To avoid such problem right now, you can run with
output --hel_recycling=False

Which should not have that issue (which is turning off one optimization layer).

Cheers,

Olivier

> On 5 Feb 2021, at 14:29, Iñaki Lara Pérez <email address hidden> wrote:
>
> Public bug reported:
>
> Hello,
>
> I have tried to generate gluino + jets events using the MSSM_SLHA2 model
> doing the following:
>
> generate p p > go go QED==0
> add process p p > go go j QED==0
> add process p p > go go j j QED==0
>
> but when compiling the subprocesses, Madgraph crashes saying:
>
> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position
> 145653: ordinal not in range(128)
>
> Is something wrung with my installation? The corresponding bug report is
> attached to the question.
>
> Note that none of this have happened using the version 2.8.1.
>
> Cheers,
> Iñaki Lara
>
> ** Affects: mg5amcnlo
> Importance: Undecided
> Status: New
>
> ** Attachment added: "run_01_tag_1_debug.log"
> https://bugs.launchpad.net/bugs/1914766/+attachment/5460563/+files/run_01_tag_1_debug.log
>
> --
> You received this bug notification because you are subscribed to
> MadGraph5_aMC@NLO.
> https://bugs.launchpad.net/bugs/1914766
>
> Title:
> Error in new version
>
> Status in MadGraph5_aMC@NLO:
> New
>
> Bug description:
> Hello,
>
> I have tried to generate gluino + jets events using the MSSM_SLHA2
> model doing the following:
>
> generate p p > go go QED==0
> add process p p > go go j QED==0
> add process p p > go go j j QED==0
>
> but when compiling the subprocesses, Madgraph crashes saying:
>
> UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position
> 145653: ordinal not in range(128)
>
> Is something wrung with my installation? The corresponding bug report
> is attached to the question.
>
> Note that none of this have happened using the version 2.8.1.
>
> Cheers,
> Iñaki Lara
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1914766/+subscriptions

[Iñaki Lara Pérez (ilara)]

Thank you for the answer Olivier, you can find attached the result from the command in the file attached.

In case it is useful to know I am using Fedora 33 and my python version is 3.9.1.

cheers,
Iñaki

[Olivier Mattelaer (olivier-mattelaer)]

Hi,

Sorry, I do not find anything wrong to your file...
I have no idea what I can do to help you.

Using the option
 output --hel_recycling=False
is one solution for you to avoid such issue

Sorry,

Olivier

[Iñaki Lara Pérez (ilara)]

Hi Olivier,

Thank you for your help.

 Using the option output --hel_recycling=False is working for me.

Iñaki Lara

[Launchpad Janitor (janitor)]

[Expired for MadGraph5_aMC@NLO because there has been no activity for 60 days.]