MadGraph5_aMC@NLO

Problem generating more than 10 K events

Asked by Gabriel Vian

Hello, I was attempting to generate events with more than 10 K, as I show in the code below

> set group_subprocesses true
> set nevents 20000

But I keep getting error messages. I've also tried the "set multi_run 10" command and other possible workarounds suggested by this forum and MadGraph error messages.

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Olivier Mattelaer (olivier-mattelaer) said : 		#1

Hi,

Given that you have applied all the workaround that I have already provided/know, it remains two solutions:
Your phase-space integral is such that it is impossible to generate events (due to a singularity) or that it is impossible for madgraph to compute it (due to an inefficiency).

If it is the second, I would be interested in which model/process you face the issue to know what are our current limit.

Cheers,

Olivier

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