RE: [fluka-discuss]: number of regions exceeds 10000

From: Eleftherios Skordis <>
Date: Wed, 20 Dec 2017 11:43:30 +0000

Dear Mingyang

At the moment the maximum number of regions allowed is 20000 with the use of an option in the GLOBAL card.

There is no easy way to increase that number. In case your simulation has repeated patterns you might want to try to use Lattices in order to replicate a smaller repeating part of your geometry and eventually end up with less than 20000 regions.

Kind regards



Eleftherios Skordis
CH-1211 GENEVA 23

OFFICE: +41-22-7679541<tel:%2B41-22-7675461>
From: [] on behalf of []
Sent: 20 December 2017 07:13
Cc: Qiang Yuan; Xiang Li;
Subject: [fluka-discuss]: number of regions exceeds 10000

Dear Fluka experts,

I'm trying to use Fluka to do simulation on detector with silicon tracker, which has more than 70 thousands regions.

While in the manual, it says the maximum number of regions is 10 thousands. So I'm kindly asking, is there any way to exceed the limitation so that more regions can be added ?

Thank you very much for your help. It would be highly appreciated!

Mingyang Cui

from DAMPE collaboration

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Received on Wed Dec 20 2017 - 13:55:25 CET

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