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Details of phase space integration: calls, iterations. passes

Asked by Yehia Abdelaziz

I have read in the manual that I have to increase the number of iterations or calls to solve this but I don't really understand how this works like what is the difference between calls and iterations. I know the syntax {iterations= x: xxxxxxxx}. I just do know how to choose them to get the best results. Also what is the integration pass?

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WHIZARD Edit question
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Juergen Reuter Edit question
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Juergen Reuter
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Best Juergen Reuter (j.r.reuter) said : 		#1

Hi Yehia,
a lot of the technicalities of the adaptive multi-channel Monte Carlo integration is explained in this paper:
https://arxiv.org/abs/1811.09711
From this paper: "In an actual integration run, there are several iterations grouped into integration passes with averaged results, as visible in the output (Fig. 1)."
The calls are just phase-space configurations ("events") that are generated from the random numbers, and the iterations are the adaptation steps of the phase space grids and the corresponding phase space channel weights.
Cheers,
    JRR

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Yehia Abdelaziz (yehia95) said : 		#2

Thanks Juergen Reuter, that solved my question.