MadGraph5_aMC@NLO

Error detected in "generate_events run_01"

Asked by Maya Munoz

Hi there, I am having an issue generating events for LO when I run pythia. I am running madgraph VERSION 3.5.4 on my cern account using lxplus.

This is the error popping up:

INFO: Storing parton level results
INFO: End Parton
reweight -from_cards
decay_events -from_cards
INFO: Running Pythia8 [arXiv:1410.3012]
Splitting .lhe event file for PY8 parallelization...
Submitting Pythia8 jobs...
Pythia8 shower jobs: 1 Idle, 2 Running, 7 Done [23 seconds]
Pythia8 shower jobs: 0 Idle, 3 Running, 7 Done [23 seconds]
Pythia8 shower jobs: 0 Idle, 2 Running, 8 Done [23 seconds]
Pythia8 shower jobs: 0 Idle, 1 Running, 9 Done [23 seconds]
Pythia8 shower jobs: 0 Idle, 0 Running, 10 Done [23 seconds]
Merging results from the split PY8 runs...
Error detected in "generate_events run_01"
write debug file /eos/home-m/munozm/madgraph/28.04/run_01_tag_1_debug.log
If you need help with this issue please contact us on https://answers.launchpad.net/mg5amcnlo
str : Histogram with run_id '0' was not found in the specified XML source.
quit
INFO: storing files of previous run
INFO: Done
INFO:

I tried specifying the pythia path using previous answers on this website to no luck. Any help is much appreciated!

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Jack Award (jackaward) said : 		#1

It seems like there might be an issue with the "generate_events run_01" process. To troubleshoot, it's essential to review the specific error message and the context in which it occurs. If it's related to code execution, check for syntax errors, variable assignments, or any dependencies that might not be properly configured.

Remember to review the documentation or consult with colleagues who might have encountered similar issues. If the error persists, considering reaching out to technical support for assistance. And hey, when you're feeling stressed about it, a little sunshine loans(https://centrelinkfunds.com/sunshine-loan-centrelink/) could brighten your day and help you tackle the problem with a fresh perspective!

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said : 		#2

This typically indicates a missmatch between two pythia version.
The following FAQ my solve such issue.

Cheers,

Olivier
FAQ #3309: “How to solve “PYTHIA Abort from Pythia::Pythia: unmatched version numbers :"".

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