Start generating events PYTHIA Abort from Pythia::next: not properly initialized so cannot generate events

> And madgraph was "discontinued" from homebrew so I installed it manually.

Was not aware that homebrew at the idea to make a package for madgraph (does not make that much sense for our tools which is not compiled.)

> Then I turned on pythia and delphes to do showering, hadronization and detector simulation. However my computer takes a long time, so i have to stopped the calculation and it reads one terminal

Did you install the mg5amc_py8_interface
(you can use "install mg5amc_py8_interface")

Second are you sure of your version of pythia, I ony remember such error from PY8 when someone was using pythya8.1 (but that was 4 years ago)

Cheers,

Olivier

> On 26 Sep 2019, at 18:52, Marco Merchand <email address hidden> wrote:
>
> New question #684307 on MadGraph5_aMC@NLO:
> https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fanswers.launchpad.net%2Fmg5amcnlo%2F%2Bquestion%2F684307&amp;data=02%7C01%7Colivier.mattelaer%40uclouvain.be%7Cd09b22174ab247f7c01e08d742a1f181%7C7ab090d4fa2e4ecfbc7c4127b4d582ec%7C0%7C0%7C637051136088006217&amp;sdata=rJ31P4ovHxowVbjviV0J2tsXdIzQTREG0OtPKwlWo3w%3D&amp;reserved=0
>
> Dear Community
>
> I have a Macos OS X with some packages (root, pythia 8.230, python) installed from homebrew. And madgraph was "discontinued" from homebrew so I installed it manually. Within it I called
>> install Delphes
>
> and is succeeded. Now I am tryin to generate the event: p p > t t~ as part of a tutorial.
>
> Then I turned on pythia and delphes to do showering, hadronization and detector simulation. However my computer takes a long time, so i have to stopped the calculation and it reads one terminal
>
>> "...Pythia8 shower jobs: 0 Idle, 8 Running, 0 Done [5m19s] "
>
> Then, as suggested in other question #649896 I did
>
> cd PY8_parallelization/split_0
>
> and opened the PY8_log.txt file. Inside it read:
>
> " PYTHIA Abort from Pythia::init: Les Houches initialization failed
> Considering 1250 events. Make sure that there is enough events in the input event files, otherwise normalization is likely to be wrong.
>
>
>
> Start generating events
> PYTHIA Abort from Pythia::next: not properly initialized so cannot generate events
> "
>
> How could I solve this issue?
>
> Thanks
> Marco
>
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Dear Olivier

Thanks for your response.

> I oirignally downloaded madgraph from: http://davidchall.github.io/homebrew-hep/
 but then i realized It wasn't working properly (by following the tutorial) so I uninstalled it.

> I did install mg5amc_py8_interface before getting the error. It is installed in HEPTools carpet. I also uncommented the paths inside the mg5_configuration.txt file inside input.

I have pythia 8.230 downloaded from homebrew install pythia

 The purpose of me following this tutorial is because I was originally interested in using CheckMate tool for a project. CheckMate requires Delphes and I am obtaining compilation errors so I can't really install it. So I decided to test Delphes by using madgraph. But as you can see that is also not working.

Maybe you have another idea of where can I look?

This question was expired because it remained in the 'Open' state without activity for the last 15 days.