MadGraph5_aMC@NLO

MG crashes with UnboundLocalError 'max_wgt' error

Asked by Philipp Millet

Dear all,

MG_2_6_1 crashes with the following error message while combining events.

Command "generate_events run_01" interrupted with error:
UnboundLocalError : local variable 'max_wgt' referenced before assignment
Please report this bug on https://bugs.launchpad.net/mg5amcnlo
More information is found in '/disk1/millet/CMSSW/CMSSW_7_1_21/src/mc-production/hadronization/output/test/MG5_aMC_v2_6_1/output_cmssm/run_01_cmssm_debug.log'.
Please attach this file to your report.

Please find the MG output, the logfile mentioned in the error message (also contains param/run card) below. Does anybody know why this crash happens? The same model works fine for different param cards / a subset of the processes.
If you need more information (or e.g. the UFO model I am using) please let me know.

Any help would be greatly appreciated,
Philipp

files:
https://cernbox.cern.ch/index.php/s/1PPK37fIXOoBY1P

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Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said : 		#1

Lets continue this as a bug report.

Revision history for this message
Si Wang (siw34) said : 		#2

Hi,

I have the same error.
And it disappeared after I change
set lhaid2 89999999
to
set lhaid 89999999

I guess the reason is the wrong variable name.

Best,
Si

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